Now showing items 1-3 of 3

    • Advanced material model for shear cutting of metal sheets 

      Gutknecht, Florian; Steinbach, Frank; Clausmeyer, Till; Tekkaya, Erman (CIMNE, 2015)
      Conference report
      Open Access
      A finite-element simulation of the shear cutting process is used to predict thegeometry of the cutting surface. A fully-coupled Lemaitre-type model is used in the process model for the description of the material behaviour. ...
    • Analysis of damage and fracture formulations in cold extrusion 

      Schowtjak, Alexander; Clausmeyer, Till; Tekkaya, A. Erman (CIMNE, 2017)
      Conference report
      Open Access
      In forming processes, components generally undergo large deformations. This induces the evolution of damage, which can influence material and product properties. To capture these effects, a continuum damage mechanics ...
    • Comparison of gurson and lemaitre model in the context of blanking simulation of a high strength steel 

      Gutknecht, Florian; Isik, Kerim; Clausmeyer, Till; Tekkaya, Erman (CIMNE, 2017)
      Conference report
      Open Access
      The process of blanking takes place in a short band with high accumulated strain undergoing various stress triaxialities. Enhanced implementations for shear and compressive loads of Gurson’s and Lemaitre’s model are directly ...