Study on hysteretic constitutive model of austenitic stainless steel

被引:0
|
作者
School of Civil Engineering, Beijing Jiaotong University, Beijing [1 ]
100044, China
不详 [2 ]
100084, China
机构
来源
Gongcheng Lixue | / 11卷 / 107-114期
关键词
Cyclic loads - Elastoplasticity - Steel structures - Subroutines - Musculoskeletal system - ABAQUS - Hysteresis - Computational efficiency - Seismology;
D O I
10.6052/j.issn.1000-4750.2014.04.0354
中图分类号
学科分类号
摘要
An accurate constitutive model is the primary condition for ensuring the precision of elastic-plastic seismic analysis. If the material constitutive model is not appropriate, it would induce great effect on calculation results. Therefore, the uniaxial hysteretic constitutive model of austenitic stainless steel considering cyclic hardening is proposed, including skeleton criteria and hysteresis criteria. The mathematical models are established to describe the behavior of austenitic stainless steel under cyclic loading. Based on the proposed model and user subroutine interface UMAT in ABAQUS, the calculation program is developed for the structural analysis of austenitic stainless steel structures under cyclic loading. By comparing with test curves, the results show that: the hysteretic behavior of austenitic stainless steel can be well described by the proposed model. Both computational accuracy and efficiency can be ensured. It provides a powerful tool for seismic analysis of austenitic stainless steel structures. © 2015, Engineering Mechanics Press. All right reserved.
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