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This paper suggests a new method to take into account the kinematic hardening in constitutive behaviour of metallic face centred cubic single crystal. The keystone of this model is that kinematic effect arises from a description of the crystal dislocation microstructure based on a heterogeneous distribution of slip strength. In this paper, these concepts are applied to crystalline plasticity models. In particular, simulations of monotonous tensile test and cyclic loading are analysed to show that implementation of the proposed concepts, without any additional complexity, gives the current model a wide range of applications from small cycled strains to large monotonous ones. [ABSTRACT FROM AUTHOR]

This article concerns the forming of a steel thin-wall short-tube by an innovative small surface contact deformation process. A Finite Element model was built to predict the forming of the workpiece. The model controls the complex kinematics of the process. The problems associated with contact control and computation time are also investigated. Compared with measurements taken by the industrial partner, the first results obtained are highly promising, with regard to predicting both the workpiece geometry and the forces acting on the tools. [ABSTRACT FROM AUTHOR]