| Terahertz Spectra of Molecular Clusters of RDX, PETN, and TNT Calculated by Density Functional Theory |
15 Mar 2012 |
51 pages |
| Authors:
L Huang; Samuel G Lambrakos; A Shabaev; L Massa; NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR COMPUTATIONAL MATERIALS SCIENCE
|
 | We present calculations of ground state resonance structure associated with molecular clusters of the high explosives RDX, PETN, and TNT using density functional theory (DFT), which is for the construction of parameterized dielectric response functions for excitation by electromagnetic waves at compatible frequencies. These dielectric functions provide for different types of analyses concerning the dielectric response of explosives. In particular, these dielectric response functions provide quantitative initial estimates of spectral ... |
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| Comparing Measured Bullet Weight with Manufacturer Specifications |
01 Feb 2012 |
10 pages |
| Authors:
Lionel Magee; Aaron Oats; Michael Courtney; AIR FORCE ACADEMY COLORADO SPRINGS CO
|
| Most rifle bullets are sold with a nominal bullet weight listed on the box, but few boxes give the tolerance or uncertainty of the bullet weight. This article presents careful measurements of bullet weight, giving the mean, standard deviation, and extreme spread for a number of makes and models. Since Berger Bullets is the only company (to the authors knowledge) to publish bullet weight tolerances, the weight measurements of several ... |
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| Defense Logistics: Improvements Needed to Enhance Oversight of Estimated Long-term Costs for Operating and Supporting Major Weapon Systems |
Feb 2012 |
49 pages |
| Authors:
Cary B Russell; Tom Gosling; Kristine Hassinger; Susannah Hawthorne; Charles Perdue; Janine Prybyla; William M Solis; Erik Wilkins-McKee; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| Requirements for submitting SARs to Congress, including the timing of these reports and the types of information to be included, are established in statute. Under 10 U.S.C. 2432, the Secretary of Defense shall submit to Congress at the end of each fiscal-year quarter a report on current major defense acquisition programs. The statute also requires that the annual SAR include a full life-cycle cost analysis for each major defense acquisition ... |
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| Warfighter Support: DOD Needs Strategic Outcome-Related Goals and Visibility over Its Counter-IED Efforts |
Feb 2012 |
40 pages |
| Authors:
Cary Russell; Grace Coleman; Rajiv D'Cruz; Emily Norman; Michael Shaughnessy; Rebecca Shea; Michael Silver; Amie Steele; William M Solis; John Strong; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| Over $18 billion has been appropriated to the Joint Improvised Explosive Device (IED) Defeat Organization (JIEDDO) to address the improvised explosive device (IED) threat, and there is widespread consensus that this threat will continue to be influential in future conflicts. DoD established JIEDDO in 2006 to lead, advocate, and coordinate all DoD actions in support of the combatant commanders' and their respective joint task forces' efforts to defeat IEDs. This ... |
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| Benchtop Energetics: Research Progress, Concept Evaluation, and Apparatus Development |
31 Jan 2012 |
55 pages |
| Authors:
Mario E Fajardo; III Lewis William K; Voncile L Ashley; Rachel M Nep; Emily C Fossum; Christopher D Molek; AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE/ORDNANCE DIVISION/ENERGETIC MATERIALS BRANCH
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| This report documents the research progress on the Benchtop Energetics project, the evolution of the underlying scientific concepts, and the accompanying changes to the experimental apparatus, during the period 2003-2011. The current goals of this project are: (1) to develop laboratory bench-scale initiation techniques and spectroscopic/mass-spectrometric diagnostics to characterize the initiation mechanisms and reaction kinetics of energetic materials, and (2) enable high-throughput bench-scale testing and evaluation of candidate advanced energetic ... |
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| Determination of Nitrate Carry-Over on Bytac(registered) Strips Via Capillary Electrophoresis |
19 Jan 2012 |
8 pages |
| Authors:
Braden C Giordano; Cameron Lindsay; Adam Lubrano; NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
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| Inorganic explosives including ammonium nitrate, urea nitrate, and ANFO are among the most common energetic materials used in home-made devices. The ability to detect these materials sensitively with low occurrences of false negatives and positives is of paramount importance. As new detection technologies are developed, the need to standardize procedures to evaluate these technologies is equally important. Most technologies include a sampling step; typically a substrate used to swipe a ... |
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| Measuring Barrel Friction in the 5.56mm NATO |
17 Jan 2012 |
8 pages |
| Authors:
Patrick Boyle; Alexander Humphrey; Spencer Proctor; Michael Courtney; AIR FORCE ACADEMY COLORADO SPRINGS CO
|
| The 5.56mm NATO cartridge is used by the United States Armed Forces and the Armed Forces of other NATO Nations. Despite its wide use, current methods for finding the barrel friction of the bullet are not accurate or consistent. This paper presents a new method for finding this barrel friction by analyzing the linear muzzle energy vs. powder charge found by test firing 5.56mm NATO round with different powder weights. ... |
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| Robust Detection, Discrimination, and Remediation of UXO: Statistical Signal Processing Approaches to Address Uncertainties Encountered in Field Test Scenarios SERDP Project MR-1663 |
03 Jan 2012 |
54 pages |
| Authors:
Leslie M Collins; DUKE UNIV DURHAM NC DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| The objective of this work was to develop methodologies that will allow the human analyst to be removed from the processing loop. It has been shown in a number of recent demonstrations that when the most skilled practitioners process geophysical data, select data chips for analysis, select features for classification, select one of a suite of classifiers, and manually tune the classifier boundaries, excellent classification performance can be achieved. Here, ... |
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| 120-mm Mortar Fuze Reduced Thread Gun Launch Survivability |
Jan 2012 |
20 pages |
| Authors:
R Terhune; J A Cordes; S DeFisher; R Wong; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ
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| A finite element analysis study was completed on the forward joint of a 120-mm mortar. The purpose of the study was to determine to what degree the adapter threads could be diametrically interrupted without compromising structural integrity during gun launch. The finite element analysis modeled the mortar assembly with a dynamic pressure load. Material nonlinearities were included in the analysis. Contact surfaces in the joint were modeled as threads. The ... |
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| Counter-Improvised Explosive Device Strategic Plan, 2012-2016 |
Jan 2012 |
25 pages |
| Authors:
JOINT IMPROVISED EXPLOSIVE DEVICE DEFEAT ORGANIZATION (JIEDDO) WASHINGTON DC
|
| Reduce the effectiveness and lethality of IEDs to allow freedom of maneuver for joint forces, federal agencies, and partner nations in current and future operating environments We will use a synchronized and integrated approach to coordinate the Department of Defense s counter-IED efforts and rapidly provide capabilities to counter the IED threat in support of operational commanders. Critical to these efforts are forces trained in the latest C-IED techniques and ... |
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| Modeling and Simulation of Mortar Fin Tooling Using Cyclic Symmetry |
Jan 2012 |
15 pages |
| Authors:
Shana Groeschler; L Reinhardt; Matthew Glaser; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ
|
| Cyclic symmetry is a method in finite element analysis that allows for the simulation of an entire cyclically symmetrical structure based on a model of one repeating sector. The reduction of model size obtained using cyclic symmetry can significantly reduce computational cost. This technique was employed to optimize the three pronged tooling design used to assemble mortar fins to the mortar body. Using cyclic symmetry, only one-third of the model ... |
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| Counter-Improvised Explosive Device Strategic Plan 2012-2016 |
Jan 2012 |
25 pages |
| Authors:
Michael D Barbero; JOINT IMPROVISED EXPLOSIVE DEVICE DEFEAT ORGANIZATION (JIEDDO) WASHINGTON DC
|
| As we continue to address the improvised explosive device threats of today, we must simultaneously prepare for tomorrow's counter-IED and counter-threat network effort by institutionalizing the knowledge, capabilities, and experience we have amassed during the last decade. Building upon hard-earned lessons learned, this Counter-IED Strategic Plan extends the focus beyond current operations and establishes an azimuth for the development of future and enduring counter-IED capabilities. The mission to disrupt the ... |
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| Open Burn/Open Detonation (OBOD) Area Management Using Lime For Explosives Transformation And Metals Immobilization |
Jan 2012 |
91 pages |
| Authors:
W A Martin; Deborah R Felt; Steven L Larson; Gene L Fabian; Catherine C Nestler; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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| A common disposal method for munitions stockpiles is Open Burn/Open Detonation (OBOD). These activities are necessary to destroy unserviceable, unstable, or unusable munitions and explosives. Due to the relatively small area of OD facilities, there is a high probability of explosives and heavy metal contamination in the soil. The objective of this demonstration was to evaluate a lime soil amendment management strategy to control active OD area contaminant mobility and ... |
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| Modeling Nonlinear Elastic-plastic Behavior of RDX Single Crystals During Indentation |
Jan 2012 |
64 pages |
| Authors:
John D Clayton; Richard C Becker; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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| A nonlinear anisotropic elastic-plastic model is developed for single crystals of the energetic material cyclotrimethylene trinitramine (RDX). The model accounts for orthorhombic symmetry of elastic constants, pressure-dependent compressibility, and dislocation glide on six slip systems. Numerical simulations of spherical indentation on oriented single crystals are performed. Model predictions are compared with experimental data and observations from the literature. Results demonstrate significant influences of elastic anisotropy and elastic nonlinearity. Model predictions ... |
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| Fiber Optic Coupled Raman Based Detection of Hazardous Liquids Concealed in Commercial Products |
Jan 2012 |
8 pages |
| Authors:
Michael L Ramirez-Cedeno; Natalie Gaensbauer; Hilsamar Felix-Rivera; William Ortiz-Rivera; Leonardo Pacheco-Londono; Samuel P Hernandez-Rivera; PUERTO RICO UNIV MAYAGUEZ
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| Raman spectroscopy has been widely proposed as a technique to nondestructively and noninvasively interrogate the contents of glass and plastic bottles. In this work, Raman spectroscopy is used in a concealed threat scenario where hazardous liquids have been intentionally mixed with common consumer products to mask its appearance or spectra. The hazardous liquids under consideration included the chemical warfare agent (CWA) simulant triethyl phosphate (TEP), hydrogen peroxide, and acetone as ... |
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| A Fundamental Key to Next-Generation Directed-Energy Systems |
Jan 2012 |
7 pages |
| Authors:
NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
|
| Naval Surface Warfare Center, Dahlgren Division (NSWCDD), is meeting the demanding requirements of next-generation Directed-Energy (DE) systems with Class-E radiofrequency (RF) transmitter switch-mode amplifiers designed to operate at ultrahigh efficiency, greater than 90 percent. Having discovered the key to next-generation DE systems, researchers at NSWCDD are focusing on the urgent need to counter-improvised explosive device (IED) systems with small, lightweight, highly efficient transmitters that use switch-mode amplifiers. Considering the multiplicity ... |
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| Laser Counter Rocket, Artillery, and Mortar (C-RAM) Efforts |
Jan 2012 |
5 pages |
| Authors:
Michael Libeau; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
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| Mortars and rockets are common weapons confronting U.S. troops abroad. Insurgents fire the inexpensive projectiles into populated areas, intending to kill or injure service members and to inflict physical damage. While kinetic solutions like guns and missile interceptors are used to counter rockets and mortars, laser counter rocket, artillery, and mortar (C-RAM) systems present a promising solution to counter these challenging threats in the near future. Scientists and engineers at ... |
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| Reliability of Explosive Squibs Used in Fire Deluge Systems |
31 Dec 2011 |
6 pages |
| Authors:
John R Hawk; AIR FORCE RESEARCH LAB TYNDALL AFB FL MATERIALS AND MANUFACTURING DIRECTORATE
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| The purpose of this test and evaluation project was to collect success/failure rate data on 129 explosive actuators, like those used in the Advanced Fire Protection Deluge System (AFPDS), that had been stored for a number of years. The manufacturer specifies a shelf life for the actuators of 10 yr when stored at 68 deg F and 2 yr when stored at 122 deg F. The actuators were stored in ... |
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| Optimal Dynamic Detection of Explosives (ODD-EX) |
29 Dec 2011 |
4 pages |
| Authors:
Herschel Rabitz; PRINCETON UNIV NJ OFFICE OF RESEARCH AND PROJECT ADMINISTRATION
|
| The completed research aimed to introduce the Optimal Dynamic Detection of Explosives (ODD-Ex) as a means to harness the best capabilities of advanced laser technology to significantly enhance the standoff detection of explosives. The core of the ODD-Ex technique rests on employing optimally shaped laser pulses to simultaneously enhance sensitivity to explosive signatures while reducing the influence of noise and signals from background interference in the field. These goals were ... |
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| Magnesium Aluminum Borides as Explosive Materials |
20 Dec 2011 |
105 pages |
| Authors:
Michael L Whittaker; Raymond A Cutler; CERAMATEC INC SALT LAKE CITY UT
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| The most common compounds formed from boron are boron carbide (B4C) and boron nitride (BN), which are generally not considered borides but which are included here since they are commercially available as high-quality powders. Borides are generally considered as compounds combining one, or more, metals with boron. Strong covalent bonding allows many of these borides to have high melting or decomposition temperatures, such that they can be used in reducing ... |
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| Implementing Advanced Classification on Munitions Response Sites: A Guide to Informed Decision Making for Project Managers, Regulators, and Contractors |
Dec 2011 |
46 pages |
| Authors:
Anne Andrews; Herb Nelson; ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM OFFICE (DOD) ARLINGTON VA
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| The Munitions Response Program (MRP) is charged with characterizing and, where necessary, remediating munitions-contaminated sites. During a cleanup, a site is typically mapped with a geophysical system, based on either a magnetometer or electromagnetic induction (EMI) sensor, and the locations of all signals above some detection criterion are excavated. Many of these detections do not correspond to munitions, but rather to other harmless metallic objects or geology: field experience indicates ... |
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| Electromagnetic Induction E-Sensor for Underwater UXO Detection |
Dec 2011 |
34 pages |
| Authors:
Yongming Zhang; QUASAR FEDERAL SYSTEMS INC SAN DIEGO CA
|
| QUASAR Federal Systems (QFS) endeavored to adapt its innovative underwater capacitive electrode electric field (E) sensors for use in detection of Unexploded Ordnance (UXO) objects in seawater. The system was based around an existing Time Domain Electromagnetic (TDEM) sensor, in which a pulsed magnetic (B) field induces eddy currents in the target. The eddy currents produce a secondary B-field, which in a conducting medium can be detected with either E-sensors ... |
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| Cost Comparative Analysis of Blast Mitigation Technologies with Regard to Explosive Remnants of War (ERW) |
Dec 2011 |
47 pages |
| Authors:
Paul J Mahoney; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The purpose of this MBA Project is to investigate and analyze different forms of blast mitigation technologies that provide safe temporary storage, and in the event of a detonation, provide protection measures for personnel and property. A comprehensive cost comparison of an Explosive Storage Magazine (ESM) and two alternatives: the Explosive Remnants of War Collection Point (ERW-CP) and Blastwrap are analyzed to determine future options. The goal of this project ... |
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| Aerodynamic Analysis of the M33 Projectile Using the CFX Code |
Dec 2011 |
97 pages |
| Authors:
Chee H Wong; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The M33 projectile has been analyzed using the ANSYS CFX code that is based on the numerical solution of the full Navier-Stokes equations. Simulation data were obtained against various Mach numbers ranging from M= 0.5 to M2.6 at 0 and 2 angles of attack. Simulation data were also obtained against various angles of attack from 0 to 85 for M= 0.5. For Mach numbers between M= 0.5 to 2.6, the ... |
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| Aerodynamic Validation of Emerging Projectile Configurations |
Dec 2011 |
103 pages |
| Authors:
Sor W Lun; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Ever-increasing demands for accuracy and range in modern warfare have expedited the optimization of projectile design. The crux of projectile design lies in the understanding of its aerodynamic properties early in the design phase. This research first investigated the aerodynamic properties of a standard M549, 155mm projectile. The transonic speed region was the focus of the research as significant aerodynamic variation occurs within this particular region. Aerodynamic data from wind ... |
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| Numerical Analysis of Shear Thickening Fluids for Blast Mitigation Applications |
Dec 2011 |
81 pages |
| Authors:
Weijie K Zhu; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Improvised Explosive Devices (IEDs) have evolved over the years to become one of the main causes of casualties and fatalities in recent conflicts. One area of research focuses on the improvement of blast attenuation using Shear Thickening Fluid (STF). The STF is a dilatant material, which displays non-Newtonian characteristics in its unique ability to transit from a low viscosity fluid to a high viscosity fluid. Although empirical research and computational ... |
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| Fundamental Energetic Materials Initiative: Combat Safe Energetic Ingredients Based on Molecular Design and Crystal Morphology |
30 Nov 2011 |
15 pages |
| Authors:
Clifford Bedford; OFFICE OF NAVAL RESEARCH ARLINGTON VA
|
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| Common Low-cost IM Explosive Program. Development of Next Generation Insensitive Munitions: A Success Story |
30 Nov 2011 |
35 pages |
| Authors:
Charlie Patel; OFFICE OF THE PROJECT MANAGER COMBAT AMMUNITION SYSTEMS PICATINNY ARSENAL NJ
|
| One of the tenets of the Project Manager for Combat Ammunition Systems Mission is to perform life-cycle management of tube-launched indirect fire munitions. Contained within this area are high explosive (HE) projectiles and cartridges for artillery and mortar applications. There are a total of fifteen HE projectiles: four for 105mm artillery, three for 155mm artillery three for 60mm, three for 81mm and two for 120mm mortar. All of these HE ... |
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| Implementation of ERDC HEP Geo-Material Model in CTH and Application |
02 Nov 2011 |
25 pages |
| Authors:
Ravi Thyagarajan; Richard Weed; Christoper Moore; MISSISSIPPI STATE UNIV MISSISSIPPI STATE CENTER FOR ADVANCED VEHICULAR SYSTEMS
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| Work performed under TARDEC/MSU Simulation Based Reliability and Safety (SimBRS) Work Directive 37 - CTH Analysis Support and Code Enhancement TARDEC identified implementation of ERDC Hybrid Elastic-Plastic Geo-material model in CTH as a priority task Standard model at ERDC for soils (also rocks and concrete) Large library of HEP model fits for different soil types Proven to provide accurate model for buried explosions in soils in Lagrangian codes (EPIC, PRONTO3D, ... |
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| Evaluation of Adhesive Bond Primers for Repair Bonding of Aluminum |
02 Nov 2011 |
49 pages |
| Authors:
Dan McCray; Jeff Smith; Jim Mazza; Kara Storage; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE
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| Trajectory Prediction of Spin-Stabilized Projectiles With a Steady Liquid Payload |
Nov 2011 |
30 pages |
| Authors:
Gene R Cooper; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Payloads that behave like a liquid are carried on board some projectile configurations, and it is well established that the internal motion of a liquid payload can induce destabilizing moments on the projectile. This report creates a method to include the effect of a liquid payload in the flight dynamic equations of motion, enabling trajectory simulations of projectiles with liquid payloads. To include this effect, liquid payload moments are added ... |
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| Desorption and Transformation of Nitroaromatic (TNT) and Nitramine (RDX and HMX) Explosive Residues on Detonated Pure Mineral Phases |
Nov 2011 |
14 pages |
| Authors:
Thomas A Douglas; Marianne E Walsh; Jr Weiss Charles A; Christian J McGrath; Thomas P Trainor; COLD REGIONS RESEARCH AND ENGINEERING LAB FORT WAINWRIGHT AK
|
| Explosive compounds, including known toxicants 2,4,6-trinitrotoluene (TNT) and hexahydro- 1,3,5-trinitro-1,3,5-triazine (RDX), are loaded to soils during military training. Their fate in soils is ultimately controlled by soil mineralogical and biogeochemical processes. We detonated pure mineral phases with Composition B, a mixture of TNT and RDX, and investigated the fate of detonation residues in aqueous slurries constructed from the detonated minerals. The pure minerals included Ottawa sand (quartz and calcite), microcline ... |
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| UXO Discrimination Using Vehicle Towed and Man Portable Sensor Data Collected at Camp Beale, California |
Nov 2011 |
39 pages |
| Authors:
Len Pasion; Laurens Beran; Stephen Billings; Lin-Ping Song; Barry Zelt; Kevin Kingdon; Nicolas Lhomme; SKY RESEARCH INC VANCOUVER (CANADA)
|
| Over the past few years there has been much research on the UXO discrimination problem whereby features derived from physics-based models fit to sensor data are used to determine the likelihood that a buried item is a UXO. Statistical and rule based classification techniques, when used with high quality EM data, have been found to be very effective at discrimination. Involvement in ESTCP Discrimination Demonstration studies have given us an ... |
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| The Next Big Steps for Munitions Response. Classification Applied to Munitions Response - Development |
Nov 2011 |
19 pages |
| Authors:
Andrew Schwartz; ARMY ENGINEERING AND SUPPORT CENTER HUNTSVILLE AL
|
| Continued successes in advanced classification are moving our industry closer to their broad transition and mainstream use. Some barriers to transitioning advanced classification that just three years ago were thought to be huge brick walls are now just rubble under the ROC curve. Those that remain are already starting to come down as we learn to apply our models and classification algorithms. Demonstration successes from 2010 and 2011 and work ... |
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| Camp Beale Live-Site UXO Data Inversion and Classification Using Advanced EMI Models |
Nov 2011 |
25 pages |
| Authors:
Fridon Shubitidze; Irma Shamatava; Jon Miller; Joe Keranen; Alex Bijamov; Benjamin Barrowes; DARTMOUTH COLL HANOVER NH THAYER SCHOOL OF ENGINEERING
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| The advanced EMI and statistical classification models are applied to the cued data sets of the Metal Mapper and two next-generation portable sensors: MPV and 2x2 3D TEMTADS. The advanced models combine: (1) the joint diagonalization (JD) algorithm for estimating the number of potential anomalies from the measured data without inversion, (2) the orthonormalized volume magnetic source (ONVMS) model for representing the EMI responses and extracting the intrinsic parameters (feature ... |
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| Shock Sensitivity of PBXN-109 When Containing Different RDX Fills Without and With Aging |
Nov 2011 |
48 pages |
| Authors:
Harold W Sandusky; NAVAL SURFACE WARFARE CENTER INDIAN HEAD DIV MD
|
| The influence of different RDX sources on shock reaction and sensitivity was evaluated for a standard explosive in which Class 1 RDX is both the major and only detonable ingredient. Shock reaction in PBXN-109 with seven different RDX fills - Type I, Type II, and reduced sensitivity - from five producers has been studied in three different gap test arrangements. Only the larger tests indicated differences in sensitivity. Dyno Nobel ... |
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| DoD Countermine and Improvised Explosive Device Defeat Systems Contracts for the Vehicle Optics Sensor System |
28 Oct 2011 |
10 pages |
| Authors:
Bruce A Burton; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| This report is the third in a series covering DoD Countermine and Improvised Explosive Device (IED) Defeat Systems programs and associated contracts. Our objective was to determine whether the Joint Improvised Explosive Device Defeat Organization (JIEDDO) and Army procurements for the Vehicle Optics Sensor System (VOSS), used on RG-31 and Joint Explosive Ordnance Disposal Rapid Response Vehicles in Iraq and Afghanistan, were developed, contracted, and managed in accordance with Federal ... |
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| 2010 ESTCP UXO Classification Study Rougemont, NC, ESTCP MR-1034, Demonstration Data Report, Former Camp Butner, MTADS Discrimination Array (TEMTADS) Survey |
20 Oct 2011 |
56 pages |
| Authors:
Nagi Khadr; James B Kingdon; Glenn R Harbaugh; Daniel A Steinhurst; NAVAL RESEARCH LAB WASHINGTON DC
|
| A twenty-five element planar array of transient electromagnetic induction (TEM) sensors developed by the Naval Research Laboratory under SERDP and ESTCP sponsorship was deployed to the former Camp Butner, NC as part of the ESTCP UXO Classification Study in July 2010. The TEMTADS array is used in a cued interrogation mode. It is delivered by a tow vehicle to a series of GPS-flagged locations corresponding to anomalies detected during prior ... |
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| 2011 ESTCP Live Site Demonstrations, Marysville, CA. ESTCP MR-1165, Demonstration Data Report, Former Camp Beale, TEMTADS MP 2x2 Cart Survey |
20 Oct 2011 |
48 pages |
| Authors:
James B Kingdon; Dean A Keiswetter; Thomas H Bell; Matthew Barner; Andrew Louder; Andrew Gascho; Tamir Klaff; Glenn R Harbaugh; Daniel A Steinhurst; NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
|
| The TEMTADS Man-Portable 2x2 sensor array was demonstrated at the former Camp Beale, CA during June 2011 as part of the ESTCP Live Site Demonstrations. New TEM sensors which replace the vertical-axis receive coils with triaxial receivers were used. Adding the horizontal receiver components improves the localization of the target. This system was designed to be deployable in areas inaccessible to vehicle-towed arrays. Data are collected at each target location ... |
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| The Miniaturization and Reproducibilty of the Cylinder Expansion Test |
Oct 2011 |
11 pages |
| Authors:
C G Rumchik; R Nep; G C Butler; B Breaux; C M Lindsay; AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE/ORDNANCE DIVISION/ENERGETIC MATERIALS BRANCH
|
| The cylinder test (aka cylinder expansion or Cylex test) is a standard way to measure the Gurney velocity and determine the JWL coefficients of an explosive and has been utilized by the explosives community for many years. More recently, early time shock information has been found to be useful in examining the early pressure-time history during the expansion of the cylinder. Work in the area of nanoenergetics has prompted Air ... |
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| A Density Functional Theory (DFT) Study of the Proposed Insensitive High Energy Density Material (IHEDM) 2-(Nitroaminomethylene)-4,5-Dinitrocyclopenta-3,5-Di-Nitroamine (NDDN) |
Oct 2011 |
17 pages |
| Authors:
Michael E Miller; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ ENERGETICS WARHEADS AND MANUFACTURING TECHNOLOGY DIRECTORATE
|
| A theoretical analysis of the proposed insensitive high energy density material (IHEDM) 2- (nitroaminomethylene)-4,5-dinitrocyclopenta-3,5-diene-1,3-di-nitroamine (NDDN) is reported. A Density Functional Theory (DFT) study was performed in order to determine the optimized structure and stability, as well as thermochemical aspects of NDDN. All calculations were performed using the Gaussian03 software with the Gaussview graphical user interface. Normal modes of vibration and heat of detonation of the proposed insensitive energetic material are ... |
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| A Density Function Theory (DFT) Study of the Proposed Insensitive High Energy Density Material (IHEDM): 2-aza-3-dinitromethylene-4-azanitro bicyclo [3.3.0]-7-nitro-6,8 diazole (ADAND) |
Oct 2011 |
15 pages |
| Authors:
Michael E Miller; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ MUNITIONS ENGINEERING TECHNOLOGY CENTER
|
| A theoretical analysis of the proposed insensitive high energy density material (IHEDM) 2-aza-3- dinitromethylene-4-azanitro bicyclo [3.3 .0]-7-nitro-6,8-diazole (ADAND) is reported. A Density Functional Theory (DFT) study is performed in order to determine the optimized structure and stability as well as thermochemical aspects of ADAND. All calculations were performed using the Gaussian03 software with the Gaussview graphical user interface. Normal modes of vibration and heat of detonation of the proposed insensitive ... |
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| Management of Munitions Constituents in Soil Using Alkaline Hydrolysis: A Guide for Practitioners |
Oct 2011 |
50 pages |
| Authors:
Jared L Johnson; Deborah R Felt; W A Martin; Ronnie Britto; Catherine C Nestler; Steven L Larson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| This report summarizes the state of the practice for the effective management of munitions constituents using alkaline amendments. It includes the wide variety of laboratory results that delineate the reaction kinetics and transformation products of alkaline hydrolysis. It also describes the field demonstrations that have proven the worth of alkaline amendments on both active training ranges and former defense facilities. Alkaline hydrolysis has been extensively studied for the degradation of ... |
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| Characterization of Hardware Improvements to an Acoustics-based Tripwire Detection Method |
Oct 2011 |
20 pages |
| Authors:
II Alberts W C; David A Ligon; Mark A Coleman; ARMY RESEARCH LAB ADELPHI MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE
|
| A method of detecting tripwires by monitoring the noise produced by airflow across a wire [Sanchez and Alberts, ARL-TN-0379] showed that various wires could be detected out to ranges of 5 cm. This short range is unacceptable if the technique is to be considered useful. Therefore, several improvements have been enacted with the goal of increasing the operating range of the technique. This report details the hardware improvements and their ... |
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| Remediation of Explosives Contaminated Groundwater With Zero-Valent Iron |
Oct 2011 |
40 pages |
| Authors:
Paul Tratnyek; Richard Johnson; OREGON HEALTH AND SCIENCES UNIV PORTLAND
|
| A series of laboratory and field studies was performed to evaluate the in situ degradation of TNT and RDX using permeable reactive barriers (PRBs) made with zero-valent iron (ZVI). The disappearance of both TNT and RDX were shown to be rapid in the laboratory and ex situ field columns. Batch experiments performed with 14C-labelled TNT have showed that the products of reaction with iron metal are partly sequestered on the ... |
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| ESTCP Cost and Performance Report (ER-200742) Open Burn/Open Detonation (OBOD) Area Management Using Lime for Explosives Transformation and Metals Immobilization |
Oct 2011 |
80 pages |
| Authors:
ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM OFFICE (DOD) ARLINGTON VA
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| Open burn (OB)/open detonation (OD) activities are necessary to destroy unserviceable, unstable, or unusable munitions and explosives. Munitions must be demilitarized or destroyed depending on their lifespan and other requirements. There are commercial demilitarization options available, but most of these cannot sustain the volume and sometimes the specific requirements for munitions destruction. Therefore, commercial demilitarization can be costly and inflexible. The Department of Defense (DoD) operates about a hundred OB/OD ... |
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| Ready-to-use Aptamer Biosensors for DNT and RDX |
29 Sep 2011 |
15 pages |
| Authors:
Hyonsok T Soh; Y Xiao; CALIFORNIA UNIV SANTA BARBARA
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| Aptamers are nucleic acid-based reagents that bind to target molecules with high affinity and specificity. However, methods for generating aptamers from random combinatorial libraries (e.g., SELEX) are often labor-intensive and time-consuming. To address this problem, we have recently demonstrated the microfluidic SELEX (M-SELEX) technology that can accelerate aptamer isolation by enabling highly stringent selection conditions through the use of very small amounts of target molecules (X. Lou et a/, PNAS ... |
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| Competition for Interrogation Arm Contracts Needs Improvement |
19 Sep 2011 |
45 pages |
| Authors:
INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
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| This report is the second in a series of reports addressing DoD contracts for countermine and improvised explosive device (IED) defeat systems used in Iraq and Afghanistan. The overall audit objective was to determine whether DoD procurement efforts for countermine and improvised explosive device defeat systems used in Iraq and Afghanistan were developed, awarded, and managed in accordance with Federal and Defense acquisition regulations. Specifically, we determined whether the Joint ... |
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| The Response of Small Scale Rigid Targets to Shallow Buried Explosive Detonations |
Sep 2011 |
16 pages |
| Authors:
D M Fox; X Huang; D Jung; W L Fourney; U Leiste; J S Lee; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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| Experimental and computational investigations were performed in order to better understand the mechanical response of rigid targets with various geometries to the detonation of shallow buried explosives. The motion of the targets was measured by use of high-speed digital video photography. This work involved flat targets, targets that were downwardly convex, and targets that were downwardly concave with explosive charges located at various positions beneath the targets. It was observed ... |
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| Field-portable Gas Chromatograph Mass Spectrometer (GC-MS) Unit for Semi-volatile Compound Analysis in Groundwater |
Sep 2011 |
152 pages |
| Authors:
Anthony J Bednar; Amber L Russell; Thomas Georgian; David Splichal; Charolett A Hayes; Phil Tackett; William T Jones; Dina Justes; Louise Parker; Robert A Kirgan; Mitch Wells; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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| This effort demonstrated the use of field-portable instrumentation for the quantification of munitions constituents in groundwater, without the need to ship water samples to a fixed analytical laboratory. The results indicate that similar reporting limits can be obtained using the field-portable instrument when coupled to solid phase extraction sample preparation, yet instrument stability at the low concentration range is an issue. The instrumentation was tested on 28 groundwater samples for ... |
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Ammunition and Explosives
