Advanced sheet metal forming

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Weight reduction of vehicles can be achieved by using high strength steels or aluminum. The formability of aluminum can be improved by applying the forming process at elevated temperatures. A thermo-mechanically coupled material model and shell element is developed to accurately simulate the forming process at elevated temperatures. The use of high strength steels enlarges the risk of wrinkling. Wrinkling indicators are developed which are used to drive a local mesh refinement procedure to be able to properly capture wrinkling. Besides, to intensify the use of implicit finite element codes for solving large-scale problems, a method is developed which decreases the computational time of implicit codes by factors. The method is based on introducing inertia effects into the implicit finite element code. It is concluded that the computation time is decreased by a factor 5-10 for large-scale problems.
Original languageEnglish
Title of host publicationProceedings of the 6th ESAFORM Conference on Material Forming
Subtitle of host publicationSalerno, Italy, April 28-30, 2003
EditorsValerio Brucato
Place of PublicationSalerno, Italy
PublisherNuova Ipsa Editore srl
Number of pages4
ISBN (Print)88-7676-211-6
Publication statusPublished - 2003
EventESAFORM 2003: 6th International ESAFORM Conference on Material Forming - Salerno, Italy
Duration: 28 Apr 200330 Apr 2003
Conference number: 6


ConferenceESAFORM 2003
Abbreviated titleESAFORM


  • Wrinkling
  • Aluminum warm forming
  • Dynamic implicit FE code


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