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  1. BelghithiaN

    Shear stress in global coordinate system for shell element

    Hello to all, I have modeled a assemby (Duct+Brackets) with shell element in abaqus . the FE stress tensor that i found are S11, S22, S33, S12 such as S33=0( Logical for a shell element because these stress value are in element local coordinate system). Now, I would study the bonding of the...
  2. BelghithiaN

    Buckling Analysis

    Hello to all, i'm biginner in FEA Composite by abaqus software. i have done a buckling analysis with 10 modes for a Composite component under pressure 0.001 MPa. As results,(1) the eingenvalue for 1st buckling mode (as exemple) is equal to -0.0523. if it's correct as result, why it's negative...

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