How do I obtain axial force & moment ?

Iskw
Iskw Altair Community Member
edited October 2020 in Community Q&A

Dear Sirs,

 

I am now comparing the result of stress analysis done by 1-d element (by AutoPIPE) and 2-d element (by Hypermesh) on same model.

According to the result, I got almost same result on model's deformation (displacement).

So I thought it was successfully completed, then next I compared the other calculation result.

 

However, as for the Axial force and Z-aixs moment, I couldn't find any similar result between the result of 1-d and 2-d.

I assumed that axial force at certain position of pipe in 1-d is equal to the summation of 'Element force' of 'one lap' of 2-d pipe element, but the result was wrong.

How do I obtain the axial force in 2-d model which is equal to that obtained in 1-d model ?

Currently I was referring the 'global system's XX direction' of 'Element forces [2d]' but was I referring the wrong output ?

<?xml version="1.0" encoding="UTF-8"?>img.thumb.png.27381c4a8b32b7bf895e094d3c3563cd.png

 

 

 

 

Tagged:

Answers

  • tinh
    tinh Altair Community Member
    edited August 2019

    If you extract element forces of 2D => it is force per unit length

    You must multiple it with length of element edge to get force value.

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited August 2019

    The reactions at BC are the same?