摘要
回顾了结构钢损伤模型的发展史 ,提出了一种新的本构模型——结构钢弹塑性各向异性损伤本构模型。该模型采用混合强化准则 ,考虑 Bauschinger效应、屈服平台、硬化 (软化 )效应及损伤和损伤演化影响。算例分析结果表明本文模型能够客观地反映结构钢在循环荷载作用下的工作性能。
It's one of the five basic researches to damage mechanics to build up the objective constitutive relations of the steel for the elasto plastic analyses of the steel structures under the action of the earthquake. A new kind of constitutive model--the elasto plastic anisotropic damage model of the constructional steel is put forward, which includes the mixed hardening criterion, Bauschinger effect, yield plateau, hardening (softening) influence, damage and damage evolution. The results of the calculation on the thick Aluminum ring compared with ones of the tests show that the model can reflects the real work characteristics of the constructional steel under the cyclic loads. The constitutive relation of the steel set forth here is suitable for the elasto plastic analyses of the steel structures under the earthquake, also for the further research on the destruction mechanism of the steel structures under the earthquake.
出处
《计算力学学报》
CAS
CSCD
北大核心
2001年第4期469-472,共4页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金资助项目 ( 5 96 780 30 )
长安大学青年科技发展基金资助项目
