摘要
本文根据在ＭＴＳ电液伺服试验系统上完成的不同应变控制加载工况的循环受压砼应力—应变全过程试验及相应声发射检测结果分析了受压砼全过程的声发射特性，然后利用损伤力学的等效应变假定建立了考虑不可逆效应的循环受压砼本构关系，该模型兼容理想弹性损伤本构模型和一般弹塑性本构模型。经比较，本文所建模型与实验结果吻合较好。
By detecting the acoustic emission energy rate during the complete process tests ofconcrete under cyclic compression,the complete process acouStic Characteristics were analyzed. Anew constitutive model was proposed based on the equivalent strain hypothesis,which consideringthe effect of irreversible deformation, and it is in a good agreement with the experimental dataunder cyclic compression.
出处
《实验力学》
CSCD
北大核心
1996年第2期216-221,共6页
Journal of Experimental Mechanics
基金
国家杰出青年科学基金
国家教委跨世纪优秀人才专项基金
关键词
循环受压
声发射
损伤
本构关系
混凝土结构
concrete,cyclic compression,acoustic emission,damage,constitutive relationship.
