应变率对乙烯基酯树脂压缩力学行为影响的研究  

EFFECT OF STRAIN RATE ON COMPRESSIVE BEHAVIOR OF VINYL ESTER RESIN

作　　者：王绪财 彭刚[1] 冯家臣[1] 刘原栋[1] 曲英章[1] 李茂东[1] 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031

出　　处：《工程塑料应用》2010年第5期59-61,共3页Engineering Plastics Application

摘　　要：为研究应变率对乙烯基酯树脂压缩性能的影响,在准静态与动态试验条件下,比较分析了不同加载速率时乙烯基酯树脂的压缩力学行为。研究发现,乙烯基酯树脂的压缩性能受加载速率影响显著,具有明显的应变率效应。动态试验条件下的屈服应力比准静态下提高57.0%～85.2%,而屈服应变略有降低,其屈服形貌和破坏特征也明显不同。By the comparison of compressive behaviors for vinyl ester resin under quasi-static and dynamic compressive experiments, the effects of strain rate on the compressive properties were studied, It was founded that the strain rate had visible influence on the mechanical performance of vinyl ester resin. The yield stress was about 157.0% - 185.2% higher under dynamic compression than quasi-static compression. However, the yield strain was lower slightly. At the same time, the samples showed different yield figures and rupture characters under different conditions.

关 键 词：应变率 乙烯基酯树脂 压缩性能 屈服 断裂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]