Publications [#56630] of Tod A Laursen

Papers Published

1. Laursen, T.A. and Oancea, V.G., On the constitutive modeling and finite element computation of rate-dependent frictional sliding in large deformations, Computer Methods in Applied Mechanics and Engineering, vol. 143 no. 3-4 (1997), pp. 197 - 227 [S0045-7825(96)01157-7]
   (last updated on 2007/04/06)

   Abstract:
   This paper proposes a rate-dependent constitutive model for the kinetic sliding of frictional interfaces. The model is presented in the context of a convected reference frame, which preserves frame indifference and is highly amenable to numerical implementation. The model features a state variable approach to the quantification of steady state sliding, and a Perzyna viscoplastic regularization which introduces the viscous frictional behavior often observed in response to rapid slip rate changes. Numerical aspects of implementing the model in a finite element architecture are discussed. Through a series of simple slider and large deformation finite element simulations, the capability of the model to reasonably predict rate-dependent sliding behavior is demonstrated.

   Keywords:
   Computer simulation;Finite element method;Deformation;Kinetic theory;Viscoplasticity;Numerical methods;