标题:
双弹簧双活塞本构模型在尼龙PA66、聚甲基丙烯酸甲酯、聚甲醛黏弹特性表征中的应用研究Study about Two-Spring-Two-Piston Constitutive Model Describing Visco-Elastic Behavior of PA66, PMMA and POM
作者:
黄传辉, 张磊, 王前, 陆兴华
关键字:
本构模型, PA66, 聚甲基丙烯酸甲酯, 聚甲醛, 黏弹性Constitutive Model, PA66, PMMA, POM, Visco-Elastic
期刊名称:
《International Journal of Mechanics Research》, Vol.5 No.3, 2016-09-02
摘要:
本文提出了一种新型的双弹簧、双活塞黏弹性本构模型，推导了相应的蠕变方程和应力松驰方程。在CETR UMT-2型试验机及LKDM-2000轮廓摩擦磨损仪上考察了尼龙PA66、聚甲基丙烯酸甲酯及聚甲醛的蠕变、松驰特性。实验表明该本构模型能较好地反映这三种聚合物材料的黏弹性质。
The visco-elastic constitutive model comprising of two-spring-two-piston was put forward; creep equation and stress relaxation equation were deduced in this paper. The creep and relaxation cha- racteristics of PA66, PMMA and POM were studied on CETR UMT-2 tester and LKDM-2000 wear tester. According to testing results, comparing analysis showed that two-spring-two-piston constitutive model can described effectively visco-elastic behavior of PA66, PMMA and POM.