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Hi all,
What I'm trying to do is to simulate a lower arm of a car scissor jack.
I've done a calc - as per doc attached. I applied 9604.53/2 per each hole. The files are attached to show what boundaries I have used.
I have little confidence whether I've done it right. Are my boundary conditions correct? I'm not sure how I can check my results?
Thank you,
Hi,
I was taking a look in your model and some attention points:
- As you are using 3D mesh, it´s recommended to have at least 3 elements in the wall thickness, you have only 2;
- Also, your applied load is divergent what you said, the total load is 4800 in both holes, not 4800 in each hole;
- In HyperMesh we have consistent units, which are you using? The Young Modulus looks like in MPa, the density looks like in kg/m^3 and the length in mm;
- You can create a node btw the two holes, create a RBE2 connecting the dependent nodes (holes) and the independent (node created) and apply the BC at this node;
- We recommend to create individual component to rigids elements.
Some tips to analyse your results:
- What is your goal with this analysis?
- Close your eyes and imagine the response of the geometry due the BCs, and now plot the Displacement and change the deformation scale. The results, makes sense with the reality?
- You can request the SPCF as output in the LoadStep > Output > SPCF, so you can see the reaction forces
- What is your failure criteria (stress, strain, buckling)? They are accepted?
Thanks,
Arthur
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