Molecular, Microscopic, and Macroscopic Investigation of Environmental/Stress Failure of Polymers and Composites

9522743 DeVries这项研究的总体目标是为更好的性能预测开发基础，提高设计方法的可靠性，并探索通过改变结构来提高聚合物和复合材料性能的过程。这个项目将研究应力和常见的工业环境因素对聚合物材料结构完整性的综合影响。它还将从微观层面到宏观层面探索断裂/失效现象并将其联系起来。例如，人们注意到，对于许多非常高强度的取向聚合物，降解速度特别严重。***

9522743 DeVries The general goals of this research are the development of bases for better performance predictions, improved reliability of design methods and to explore processes by which structure might be altered to enhance polymer and composite material performance. This project will study the combined effects of stress and common industrial environmental agents on the structural integrity of polymeric materials. It also will explore and interrelate the fracture/failure phenomena from the microscopic scale to the macro level. It is noted, for example, that the rate of degradation is particularly severe for many very high strength oriented polymers. ***