Vg. Oancea et Ta. Laursen, DYNAMICS OF A STATE-VARIABLE FRICTIONAL LAW IN FINITE-ELEMENT ANALYSIS, Finite elements in analysis and design, 22(1), 1996, pp. 25-40
This paper discusses a state- and rate-dependent frictional model and
its implementation in large deformation finite elements. The model fea
tures a state variable to describe fading memory of slip history and a
Perzyna viscoplastic regularization to quantify the frictional respon
se to rapid slip changes. Some results in nonlinear dynamics for a sim
ple spring mass frictional slider are very briefly presented as backgr
ound for some frictional induced instabilities in finite elements that
are discussed next. Comparison with available experimental data is pe
rformed and an overall good agreement is observed where a simple Coulo
mb law failed to predict reasonable results.