| CYCLIC VISCOPLASTIC DESCRIPTION FOR THE MEAN STRAIN EFFECT |
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| 作者姓名： | Yang Xianjie |
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| 摘 要： | ＣＹＣＬＩＣＶＩＳＣＯＰＬＡＳＴＩＣＤＥＳＣＲＩＰＴＩＯＮＦＯＲＴＨＥＭＥＡＮＳＴＲＡＩＮＥＦＦＥＣＴＣＹＣＬＩＣＶＩＳＣＯＰＬＡＳＴＩＣＤＥＳＣＲＩＰＴＩＯＮＦＯＲＴＨＥＭＥＡＮＳＴＲＡＩＮＥＦＦＥＣＴ￥ＹａｎｇＸｉａｎｊｉｅ（ＳｏｕｔｈｗｅｓｔＪ...
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CYCLIC VISCOPLASTIC DESCRIPTION FOR THE MEAN STRAIN EFFECT |
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| Yang Xianjie.CYCLIC VISCOPLASTIC DESCRIPTION FOR THE MEAN STRAIN EFFECT[J].Chinese Journal of Aeronautics,1995(2). |
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| Authors: | Yang Xianjie |
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| Institution: | Southwest Jiaotong University |
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| Abstract: | A viscoplastic constitutive model incorporating the cyclic deformation be-havior with mean strain is presented. In the model,a memory parameter q of strainamplitude is proposed,the evolution equations of back stresses are formulated,an ap-propriate definition of nonproportionality is introduced,and the evolution equations ofisotropic deformation resistance which has the fading memory on the cyclicdeformation behavior of previous history are developed.All of the above aspects in-clude the mean strain effect.The model is applied to the constitutive modelling of themean strain effect of 1 Cr18Ni9Ti stainless steel.The predictions show that the model isreasonable for the effect. |
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| Keywords: | strain rate effects cyclic viscoplasticity constitutive equations |
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