🎉Community Raffle - Win $25

An exclusive raffle opportunity for active members like you! Complete your profile, answer questions and get your first accepted badge to enter the raffle.
Join and Win

Optistruct vs Abaqus - Max principal stresses

User: "mdrehmer"
mdrehmer
Altair Community Member
Updated by mdrehmer

My question is, what is the differences between the stress components in Optistruct and Abaqus? I mean, what is the difference between P1(major) - Optistruct and Max principal - Abaqus? The same analogy to P1(minor) and Min Principal.

I ran a simulation in both softwares with same mesh and same parameters to compare, and notice that as P1(major) and Max principal(Abaqus) values are very close, but the P1(minor) and min Principal(Abaqus) is very different!

Some details: It is a shell element analysis, and I set for stress calculation Gauss as location for optistruct and Integration point for Abaqus.

 

Thanks in advance!

 

Find more posts tagged with

English
OptiStruct
Sort by:
1 - 2 of 21
    User: "QuyNguyenDai"
    QuyNguyenDai
    Altair Community Member
    Updated by QuyNguyenDai

    Should be the same for any solver.

    User: "mdrehmer"
    mdrehmer
    Altair Community Member
    OP
    Updated by mdrehmer

    Yes it should be the same, but this is the problem. I got the same results for P1(major) and Max Principal, but different results for P3(minor) and Min Principal.

    At time, the Mises results were equivalent in my comparison between abaqus and optistruct.

Quick Links