Numerical simulation of the dynamics of an impacting bar

✍ Scribed by Laetitia Paoli; Michelle Schatzman

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 410 KB
• Volume: 196
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/j.cma.2006.11.024

✦ Synopsis

We calculate numerically the motion of a slender bar dropped on a rigid foundation. For the computation the bar is discretized by a system of rigid bodies linked by spiral springs or by a pair of linear springs. We assume that the impact is frictionless and we model it by Newton's law. We compute the motion by using either an event-driven method based on the detection of impacts or a time-stepping scheme avoiding the detection of impacts. We calculate also the apparent restitution coefficient and we compare our results with the experimental and numerical results of Stoianovici and Hurmuzlu.