A framework for development of surface smoothing procedures in large deformation frictional contact analysis

✍ Scribed by V. Padmanabhan; T.A. Laursen

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 635 KB
• Volume: 37
• Category: Article
• ISSN: 0168-874X
• DOI: 10.1016/s0168-874x(00)00029-9

✦ Synopsis

This paper presents a variational framework and numerical implementation strategy for contact smoothing algorithms in large deformation "nite element analysis. Since traditional approaches in contact mechanics enforce kinematic constraints de"ned in terms of faceted surfaces introduced by "nite element discretizations, large sliding problems in particular tend to induce nonphysical oscillations in contact forces and nonlinear equation solving di$culties associated with the discontinuities in the contact surface geometry. The formulation presented herein is shown to circumvent these issues, improving the robustness of the numerical procedure and eliminating many of the contact force oscillations given by more traditional procedures.