Results 1 to 2 of 2
  1. Collapse Details
    FEA SW xpress help!
    #1
    Default

    if i take 2 identically dimensioned straight tubes in 1010 steel and another in 4130 chromoley steel and bend them with the same force the displacement measures the same for each
    this isn't correct as the 4130 has a tensile strength double that of 1010
    i am using the 'light' version of xpress in SW
    any help over the weekend greatly appreciated
    thanks !
    Reply With Quote
     

  2. Collapse Details
    Re: FEA SW xpress help!
    #2
    Millenium Member plkracer's Avatar
    Join Date
    Aug 2006
    Location
    Monroe Wa
    Posts
    3,360
    Default
    Strength has nothing to do with flexibility. Most steels have approximate the same Young's modulus, (modulus of elasticity). Steel is approximately 210 GPa, while aluminum is approximately 70 GPa, therefore aluminum will bend 3 times as much with the same load. (Assuming you haven't reached the yield stress).

    Be VERY careful with FEA results. Unless you are very experienced using it, don't risk your life based on the results.

    Most FEA models will not account for a material yielding, so you need to check the results to make sure you are staying below the yield strength of the material. Once you reach yielding, FEA goes out the window.

    Also, FEA models used in SolidWorks Xpress WILL NOT account for buckling. While a frame may look fine in FEA, it may buckle under a smaller load in real life.
    Proud owner of a two seat pucker-mobile. Funco inspired mini buggy powered by a Busa. Giving out free rides to anyone brave enough.
    Reply With Quote
     

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •