Modeling of TWIP Steel Tensile Behavior with Crystal Plasticity Finite Element Method
2014 ◽
Vol 926-930
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pp. 162-165
Keyword(s):
We developed a plane-strain crystal plasticity finite element (CPFE) numerical model to predict the tensile behavior of twinning-induced plasticity (TWIP) steel with both slip and mechanical twinning as the main deformation modes. Our CPFE model may not only predict well the tensile stress versus strain (S-S) curve but also capture the variation in the volume fraction of twins with a reasonable accuracy. The nucleation of mechanical twin is obviously controlled by the stress concentration. At the same time, the growth of twin may either lead to a stress relaxation in the matrix or cause a local stress concentration around twin, which depends on the deformation condition.
2020 ◽
Vol 130
◽
pp. 102703
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2015 ◽
Vol 359
◽
pp. 236-244
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2013 ◽