Multiskalen Kontaktmodellierung bei Vorhandensein granularer Partikel in einer Zwischenschicht: Analyse, Mehrkörper Kontakthomogenisierung und experimentelle Untersuchungen

• Applicant: Professor Dr.-Ing. Peter Wriggers
• Subject Area: Mechanics
• Term: from 2009 to 2015
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 124909765

• Final Report Year: 2015

Final Report Abstract

In this project the foundations for a profound analysis of contacts with third bodies in the interface were build. This includes the implementation of the coupling of a fully explicit Discrete-Element-Method with a Finite-Element-Method for cases were elements were much smaller than the discrete particles. Furthermore a standard homogenization scheme for the effective coefficient of friction was employed, which then was used to construct novel numerical macro friction law. This numerical friction law is the main ingredient for the used multiscale method. As the computational effort of this approach increased further when extending it to three dimensions, a focus was on a fast implementation with a good performance. To archive this first steps towards parallelization were done.

Publications

• Inelastic analysis of granular interfaces via computational contact homogenization. International Journal for Numerical Methods in Engineering, 84.8: 883-915, 2010
  İ. Temizer, P. Wriggers
  
• A three dimensional homogenization technique for granular interfaces. ECCOMAS 2012: 6th European Congress on Computational methods in applied sciendes and engineering. 2012
  R. Weidlich, İ. Temizer, P. Wriggers
  
• A two-scale model of granular materials. Computer Methods in Applied Mechanics and Engineering, 205-208: 46-58, 2012
  C. Wellmann, P. Wriggers
  
• Effective coefficient of friction for three dimensional third body contact. 6th Contact Mechanics International Symposium. 2014
  R. Weidlich, İ. Temizer, P. Wriggers