Inconsistent Intermediate Displacement&Stress Results

emir.akar
emir.akar New Altair Community Member
edited October 2020 in Community Q&A

Hello;

I am Emir. I have come across a problem in optistruct that is I believe incremenatal results were inconsistent. My model is a non-linear problem which includes freeze and friction contact as well as non-linear material. LGDISP and CNTSTB cards are active in the model. After I ran the analysis with 300N and 150 N (only load magnitude changed all the other parameters are the same). Below the results are listed in the rable. Do you think I am missing something? According to the results I can not rely on intermediate results. Do I have to run a new analysis for each iteration ? Thanks in advance. Have a great day.

 

Best Regards

 

Force

Increment

Max. Disp.(mm)

Max. Stress.(MPa)

300N

0.55(%55)

3.6

145

150N

1.0(%100)

4.26

248.6

Tagged:

Answers

  • FaroukM
    FaroukM Altair Community Member
    edited April 2020
    Altair Forum User said:

    Hello;

    I am Emir. I have come across a problem in optistruct that is I believe incremenatal results were inconsistent. My model is a non-linear problem which includes freeze and friction contact as well as non-linear material. LGDISP and CNTSTB cards are active in the model. After I ran the analysis with 300N and 150 N (only load magnitude changed all the other parameters are the same). Below the results are listed in the rable. Do you think I am missing something? According to the results I can not rely on intermediate results. Do I have to run a new analysis for each iteration ? Thanks in advance. Have a great day.

     

    Best Regards

     

    Force

    Increment

    Max. Disp.(mm)

    Max. Stress.(MPa)

    300N

    0.55(%55)

    3.6

    145

    150N

    1.0(%100)

    4.26

    248.6

    Hi Emir,

    Can you please share the *fem file ?

    Cdt,

Categories