| Validation of Bounding Surface Plasticity Theory Using Preliminary Geotechnical Centrifuge Experiments |
JUL 86 |
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| Authors:
C. K. Shen; Z. Y. Zhu; L. R. Herrmann; V. N. Kaliakin; NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
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 | A 2-D, plane strain, clay-backfilled, retaining wall model study was performed in the centrifuge. Results compared well with SAC-2 finite element predictions of the model behavior using the bounding surface plasticity formulation. this study provides much needed data base for the validation of the bounding surface plasticity theory to model soft soil behavior and its interaction with structures. |
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| Finite Element Analysis for Cohesive Soil, Stress and Consolidation Problems Using Bounding Surface Plasticity Theory |
DEC 1983 |
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| Authors:
L. R. Herrmann; K. D. Mish; CALIFORNIA UNIV DAVIS
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| The equations governing the consolidation, and the stress and strains states for soil structures are reviewed and their historical development is discussed. Numerical analysis concepts are used to express these equations in incremental form. A variational statement of these incremental equations is formulated and used in the development of a comprehensive finite element analysis. The concepts used in developing the variational statement are somewhat different from those used by most ... |
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| Computer Implementation of the Bounding Surface Plasticity Model for Cohesive Soils |
DEC 1983 |
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| Authors:
L. R. Herrmann; V. N. Kaliakia; V. F. Dafalias; CALIFORNIA UNIV DAVIS
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| The equations governing the consolidation, and the stress and strains states for soil structures are reviewed and their historical development is discussed. Numerical analysis concepts are used to express these equations in incremental form. A variational statement of these incremental equations is formulated and used in the development of a comprehensive finite element analysis. The concepts used in developing the variational statement are somewhat different from those used by most ... |
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| User's Manual for SAC-2. A Two-Dimensional Nonlinear, Time Dependent Soil Analysis Code Using the Bounding Surface Plasticity Model |
DEC 1983 |
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| Authors:
L. R. Herrmann; K. D. Mish; CALIFORNIA UNIV DAVIS
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| The equations governing the consolidation, and the stress and strains states for soil structures are reviewed and their historical development is discussed. Numerical analysis concepts are used to express these equations in incremental form. A variational statement of these incremental equations is formulated and used in the development of a comprehensive finite element analysis. The concepts used in developing the variational statement are somewhat different from those used by most ... |
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| User's Manual for SAC-3: A Three-Dimensional Nonlinear, Time Dependent Soil Analysis Code Using the Bounding Surface Plasticity Model |
DEC 1983 |
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| Authors:
K. D. Mish; L. R. Herrmann; CALIFORNIA UNIV DAVIS
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| The equations governing the consolidation, and the stress and strains states of soil structures are reviewed and their historical development is discussed. Numerical analysis concepts are used to express these equations in incremental form. A variational statement of these incremental equations is formulated and used in the development of a comprehensive finite element analysis. The concepts used in developing the variational statement are somewhat different from those used by most ... |
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| In Situ Characterization of Soils for Prediction of Stress-Strain Relationship |
NOV 1983 |
124 pages |
| Authors:
K. Arulanandan; Y. Dafalias; L. R. Herrmann; A. Anandarajah; N. Meegoda; CALIFORNIA UNIV DAVIS DEPT OF CIVIL ENGINEERING
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 | A non-destructive method of characterizing particulate systems using electrical properties is presented. The application of this methodology for the demarkation of cohesive and granular soils is demonstrated. The significance of this approach is that electrical properties of soils such as conductivity, sigma, and dielectric constant, epsilon, as a function of frequency, can be measured in situ. These properties, when suitably interpreted, can be used to quantify the structure of particulate ... |
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| In Situ Characterization of Soils for Prediction of Stress Strain Relationship of Soft Clay |
10 NOV 1982 |
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| Authors:
K. Arulanandan; A. Anandarajah; Y. F. Dafalias; L. R. Herrmann; CALIFORNIA UNIV DAVIS DEPT OF CIVIL ENGINEERING
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| An electrical method of characterizing fine grained soils is described. A nondestructive method of determining the stress-strain behavior of fine grained soils is developed based on this fundamental characterization of soils. A bounding surface plasticity model is used for the prediction of stress- strain behavior. Correlations are established relating the bounding surface model parameters to the appropriate electrical parameters. In situ prediction of stress-strain behavior of fine grained soils can ... |
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| A Verification Study for the Bounding Surface Plasticity Model for Cohesive Soils |
MAR 1982 |
56 pages |
| Authors:
L. R. Herrmann; C. K. Shen; S. Jafroudi; J. S. DeNatale; Y. F. Dafalias; CALIFORNIA UNIV DAVIS DEPT OF CIVIL ENGINEERING
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| Results of drained and undrained, triaxial compression and extension, and thick-walled cylinder laboratory tests are given for a laboratory prepared kaolin soil. For the soil in question, a portion of the data is used to calibrate a 'bounding surface plasticity model' for cohesive soils. The model is used to analyze the remaining tests and the results are compared to the measured values with good agreement. (Author) |
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| FINITE ELEMENT ANALYSIS FOR SOLID ROCKET MOTOR CASES. |
MAR 1967 |
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| Authors:
L. R. Herrmann; R. L. Taylor; R. L. Green; STANFORD RESEARCH INST MENLO PARK CALIF
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| A finite element development for shells of revolution and cylinders in plane strain is presented. The element is based upon a variational theorem which allows linear displacement expansions in each element, thus, an element is developed which is fully compatible with commonly employed continuum elements. A numerical example is presented along with a computer program listing for shells of revolution. (Author) |
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