Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross 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: stressboy
  • Content: Threads
  • Order by date
  1. stressboy

    laminate modeler - user failure criteria -

    I try to impliment my own failure criteria in laminate modeler, and I encounter a few problems. the example file found in the help guide does not work. Patran returns an error where it explains that I must add functions: check_mat_allow_valid, name.... I do not know how to implement them, which...
  2. stressboy

    user failure criteria in laminate modeler

    hello, I try to impliment my own failure criteria in laminate modeler, and I encounter a few problems. the example file found in the help guide does not work. patran return an error where it explains that I must add functions: check_mat_allow_valid, name.... I do not know how to use them. if...
  3. stressboy

    snap through / snap back problem with NASTRAN

    Hello,I am modeling tape spring with NASTRAN. It is a non linear problem due to geometry with snap through behaviour. Usually the solution is to use arc lengh method (I use Crisfield). But with this one, I have ping-pong effect. If somebody has an idea to solve it ...please thanks

Part and Inventory Search