The Role of Volume Changes in the Nonlinear, Time-Dependent Mechanical Response of Amorphous Structural Polymers

这个项目将研究结构聚合物的非线性随时间变化的本构行为。这是一个特别强调阐明的作用，膨胀在时间依赖的力学行为，并提供一个框架的时间依赖的聚合物断裂。研究的重点是发生在随时间变化的材料行为中的小体积变化。初步的扭转试验表明，在这种试验中聚合物的体积发生了变化。* * *

9504144 Knauss This project will study the nonlinear time-dependent constitutive behavior of structural polymers. It is a particular emphasis to elucidate the role of dilatation on the time dependent mechanical behavior and to provide a framework for time dependent polymer fracture. The study centers on the small volume changes that occur in the time dependent material behavior. Preliminary torsion tests have showl that the volume changes occur in such tests of polymers. ***