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《Chinese Quarterly of Mechanics》 2008-03
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Numerical Simulation of Fatigue Nonproportional Hardening Rule under Nonproportional Load

JIANG Xiao-yan FENG Miao-lin WU Chang-chun (Depaartment of Engineering Mechanics,Shanghai Jiaotong University,Shanghai 200240,China)  
All failures,about 50% to 90%is due to cyclic load and fatigue damage from lots of literatures. Fatigue response due to complicated load(much are nonproportional load)is the subject of fatigue experi- mental,theoretical and analytical investigations.Critical experiments,theories and models of comparison to quantify nonproportional hardening were presented.By using Jiang's constitutive model,a new kine- matic hardening equation was used.The non-proportionality,and the effect of memorization for the maxi- mum plastic strain amplitude were considered.It is shown from the simulated result that the model can describe the non-proportional multiaxial deformation behavior and cyclic hardening behavior.Then,we use a 304 stainless steel and Jiang's model under nonproportional load to do numerical calculation.It is concluded that the results is almost the same with the experiments.
【Fund】: 国家自然科学基金(10772115);; 国家自然科学海外杰出青年基金(50428504);; 教育部归国留学人员基金的资助
【CateGory Index】: TG111.8
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Chinese Journal Full-text Database 2 Hits
1 ZHANG Juan,KANG Guo-zheng,GAO Qing,SUN Ya-fang(Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu,610031,China);Experimental Research on Non-proportionally Multi-axial Ratcheting of 304 Stainless Steel at High Temperatures[J];Nuclear Power Engineering;2006-05
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