Vibration/Creep Interaction Effects on the Long-Term Durability of Polymers and Polymer Matrix Composites

将研究聚合物和聚合物基复合材料对静、循环载荷的长期响应。该项目的具体目标是确定一组指定聚合物和聚合物复合材料对循环蠕变或振动蠕变的响应；确定微观组织工艺的影响；开发一致的本构模型来表征聚合物的循环和温度相关的蠕变特性；并验证加速实验技术对振变的预测能力和阻尼的影响。这项研究是蒙大拿州立大学和南达科他州矿业学院的共同努力。

The long-term response of polymers and polymer matrix composites to combined static and cyclic loads will be studied. The particular objectives of the project are to determine the response to cyclic creep, or vibrocreep, of a designated group of polymers and polymer composites; to determine the effects of microstructural processes; to develop consistent constitutive models to characterize cyclic and temperature dependent creep properties of polymers; and to validate accelerated experimental techniques in terms of their predictive capabilities for vibrocreep and the effect of damping. The study is a joint effort between the Montana State University and South Dakota School of Mines.