Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Damage and failure behaviour of high strength lightweight materials under bending load



Datum: 20.12.2016


Author


Reporter

  • Prof. Dr.-Ing. habil. M. Merklein
  • Prof. Dr.-Ing. Dr.-Ing. E.h. A. E. Tekkaya

Due to their high potential for saving weight high strength lightweight materials are increasingly used in various fields of industry. Currently, the main challenge within manufacturing and processing these materials is bending of sharp radii because of reduced formability as well as changing damage and failure behaviour compared to conventional materials. For these reasons a general methodology for the simulation-based determination of damage and failure under bending load for materials with high lightweight potential was developed within this work. In this context, a fundamental understanding about the damage and failure mechanisms during bending sharp radii was simultaneously created both in experimental and simulation-based studies. Consequently, the developed methodology and the acquired knowledge make a device contribution to design bending dominated forming operations economically, accurately and reliably in practice as well as to predict and prevent the probability of damage and failure prior to manufacture and production in the future.