论文部分内容阅读
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。
This paper analyzes the acoustic emission characteristics of the whole process of compressive crucible according to the stress-strain full-cycle test and the corresponding acoustic emission test results of the cyclically stressed crucible under different strain control loading conditions on the MTS electro-hydraulic servo test system, and then uses the damage. The equivalent strain of mechanics assumes that the cyclically constrained constitutive relation of irreversible effects is established. This model is compatible with the ideal elastic damage constitutive model and the general elasto-plastic constitutive model. After comparison, the model established in this paper is in good agreement with the experimental results.