摘要
采用混合强化本构关系、剪切厚壳单元及Ｕ．Ｌ．方法对钢构件循环加载进行了有限元 分析，并编制了相应的计算程序，用于模拟地震作用下钢构件的滞回性能。通过与其它分析 方法及试验的分析比较，证明了该程序具有较高的精度，适用于板、壳及组合体的强度和稳 定及循环加载问题的分析。
The present research work aims at simulating the hysteresis behavior of steel members under the action of earthquake and wind. An algorithm is developed in which a degenerated shall element is used to study the steel members under cyclic loads based on the Updated Lagrange Method. By comparing the numerical results with other available solutions, it is found that the present algorithm offers accurate results and can be used to study the hysteresis behavior of steel plates and shells and even their composites under cyclic loads.
出处
《工程力学》
EI
CSCD
北大核心
2001年第4期51-59,共9页
Engineering Mechanics
基金
国家自然科学基金资助项目(59678030)
关键词
混合强化
循环荷载
双重非线性壳单元
钢构件
有限元
mixed hardening
cyclic loading
geometric and material nonlinear finite shell element
