Abstract
This paper presents a micromechanical modeling strategy for complex multibody interactions and the associated numerical framework. The strategy rests on a periodic multibody method in the framework of the NonSmooth Contact Dynamics approach of Moreau (1988) extended to classical domain decomposition problems. Many complex interactions can be taken into account: interactions between discrete elements, between discrete or rigid bodies, (quasistatic) contact or impact, friction or adhesion, decohesion (cracking), etc. The associated numerical platform, Xper, is composed of three independent libraries with Object Oriented Programming. The ability of this computational approach is illustrated by two examples of fracture in heterogeneous materials.
Highlights
Dynamic crack propagation in heterogeneous materials is a complex problem and has become a challenge in many engineering domains
This approach is based both on the concept of Frictional Cohesive Zone Model and on a multibody method in the context of the NonSmooth Contact Dynamics (NSCD)
This paper presented a numerical framework for the modeling of dynamic crack propagation in heterogeneous materials
Summary
Frederic Perales1,3 — Frederic Dubois2,3 — Yann Monerie Bruno Piar1,3 — Laurent Stainier. Laboratoire de Micromécanique et d’Intégrité des Structures IRSN DPAM-CNRS Université de Montpellier 2
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