Friction modelling between solid elements

摘要

In recent years, analysts have been adding considerable detail to their finite element models in order to replicate actual physical behaviour with greater accuracy. One such detail is the connections between parts. Meshing of such models, although not quick, can be done without much difficulty. What can be difficult, however, is accurately capturing the interaction of all of the parts that compose the connection. Friction plays an important role in that interaction. Therefore, this paper discusses the fundamentals of friction modelling between solid elements in LS-DYNA. However, the discussion is applicable to most nonlinear finite element analysis codes used for crashworthiness analysis. Understanding the details behind friction modelling will improve an analyst's modelling skills and thus, lead to quicker and better designs.