A yield‐limited Lagrange multiplier formulation for frictional contact

An analogy with rigid-plasticity is used to develop a constitutive framework for quasi-static frictional contact between finitely deforming solids. Within this setting, a Lagrange multiplier method is used to impose a sharp distinction between stick and slip. The scope of the multipliers is limited by a constitutivelydefined “yield” function and a finite element-based predictor-corrector scheme is employed to efficiently determine the regions of stick and slip and the associated tractions. Selected simulations of planar quasi-static problems are presented to validate the method and illustrate its capabilities.

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