Three dimensional finite element modeling of thermomechanical frictional contact between finite deformation bodies using R-minimum strategy

摘要

An algorithm for analyzing the transient thermal coupling with the frictional contact between the multiple elastic- plastic bodies in finite deformation is presented using the R-minimum strategy. An arbitrarily shaped contact element strategy, named as node-to -point contact element strategy, is proposed to handle the thermomechanical frictional contact between finite deformation bodies. Assuming the material properties to be temperature dependent, the con- stitutive equations for both the thermomechanical frictional contact and the thermal-elastic-plastic materials are de- duced respectively and applied in our finite element code. Finally, two examples are presented to show the efficiency and usefulness of this algorithm.