Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations pierreick on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: Ed93
  • Content: Threads
  • Order by date
  1. Ed93

    Contact definitions: shell to shell & shell to solid.

    Hello everyone, I want to model the following case and I use LS-DYNA for my simulation: 1) Two cylinders made of shell elements have to be connected by the edges. They have the same diameter, but are made of different materials. I tried TIED_SURFACE_TO_SURFACE, but they seem not to be tied...
  2. Ed93

    Implementing failure strain to material models

    Hello everyone, does anyone have experience to define a failure strain, so that after reaching this strain the shell element is deleted from the calculation? I am using the material model MAT24 Piecewise_Linear_Plasticity in LS-DYNA wehere I can define a "strain to failure". But I am not sure...
  3. Ed93

    Negative volume and complex speed of sound termination

    Hello everyone! I have a problem to simulate an impact onto soil ground (Material Model 5 Soild and Foam) with LS-Dyna, because I am getting negative volumes which lead to complex speed of sound in the material. My model consists of two layer of soil (Automatic_Surface_To_Surface) and an round...
  4. Ed93

    Material Models: Piecewise Linear Plasticity

    Hello everyone, Currently I am investigating the crush behavior of thin walled tubes. Therefore I am doing some analysis with ANSYS/LS-Dyna. I have a brief question concernen the Material Model 24 (Piecewise Linear Plasticity): First of all I have obtained a true stress vs. true strain curve...

Part and Inventory Search