A mean-field model for transformation induced plasticity including backstress effects for non-proportional loadings

作者：Fischlschweiger Michael^*; Cailletaud Georges; Antretter Thomas

来源：International Journal of Plasticity, 2012, 37: 53-71.

DOI：10.1016/j.ijplas.2012.04.001

• Phase transformation
• Thermomechanical processes
• Constitutive behaviour
• Residual stress
• Transformation induced plasticity

A viable model for the phenomenon of transformation induced plasticity must be able to predict the strain response to arbitrary, also non-proportional loading paths. The constitutive model presented in this paper is interfacing between the macro- and the mesoscale by stress partitioning in the parent and product phase, using a nonlinear scale transition rule. As one of the key features a mean field tensor representing the orientation strain contribution is introduced taking into account backstress effects. A good agreement of the model results with experiments on a maraging steel is achieved.

• 出版日期2012-10