Contact Laws

Introduction

NairnMPM and OSParticulas implement contact physics on crack surfaces and between materials in multimaterial mode by using contact laws. Each contact law can define frictional contact or describe an imperfect interface. Contact laws are assigned to crack or material surfaces by using the ContactCracks or ContactMM commands, by using the Contact material property, or by choosing a custom contact law when defining a new crack. This section explains the possible contact laws.

You create contact law using a Material command block. Within that block all contact law properties are set using property commands. Refer to each contact law type to learn about its possible properties.