高温混凝土的非线性多轴热力学本构模型研究  

Study on a Nonlinear Multi-axial Thermal-mechanical Constitutive Model of Concrete at High Temperature

作　　者：薛国新[1] 路淼[1] 

机构地区：[1]江苏石油化工学院,江苏理工大学科研处

出　　处：《江苏理工大学学报（自然科学版）》1996年第4期80-84,共5页Journal of Jiangsu University of Science and Technology(Natural Science)

摘　　要：从混凝土结构材料的弹塑性变形与热应力交互作用角度，研究了材料在高温下应变率与流动定律、粘塑性与塑性加载函数、加卸载准则，得出了一种新的高温混凝土非线性多轴热力学本构模型．Considering the interaction of the elastic and plastic deformationwith the thermal stress, the authors study the variation of the strain with theflow at a high temperature, the visco-plastic and plastic loading functions and thecriteria for the loading and unloading of concretes at a high temperature and establish a nonlinear multi-axial thermal-mechanical constitutive model for it.

关 键 词：混凝土 本构关系 塑性流动理论 非线性 热力学 

分 类 号：TV331[水利工程—水工结构工程] TV313