The goals of this experimental program were to optimize the effectiveness of an icephobic coating for use on several Space Shuttle surfaces, to evaluate the effects of adding an ultraviolet light absorber (UVA) on coating performance, and to assess the consistency and durability of the basic coating and its modifications. The double lap shear test was used to quantify ice adhesion performance at a constant temperature of 112 C ( ...
The notched and unnotched tension and compression properties of quasi-isotropic laminates, and compression after impact strengths of five carbon fiber/toughened matrix composites, (IM7/E7T1-2, IM7/X1845, G40-800X/5255-3, IM7/5255-3, and IM7/5260) were evaluated. The compression after impact (CAI) strengths were determined primarily by impacting quasi-isotropic laminates with a 1.27-cm diameter aluminum projectile fired from an air gun. A few CAI tests were also made using a drop weight impactor. For a given impact ...
The use of toughened matrix composite materials offers a potentially attractive solution to the problem of poor damage tolerance associated with aircraft composite materials. In this study, the notched tension and compression properties of quasi-isotropic laminates, and compres- sion after after impact strengths of five carbon fiber/toughened matrix composites, IM7/E7T1-2, IM7/X1845, G40-800X/5255-3, IM7/5255-3, and IM7/5260, have been evaluated. The compression after impact (CAI) strengths were determined primarily by impacting quasi-isotropic ...
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