FEA Results Interpretation for a Pin Support

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The FEA analysis of a jib crane using Autodesk Inventor indicates a maximum Von Mises stress of 773 MPa in the support pin, surpassing the yield strength of Carbon Steel. This raises concerns about potential failure under load, but further investigation into boundary conditions, mesh density, and geometry is necessary to confirm the accuracy of the results. The discussion emphasizes the importance of analyzing mesh density and the specific boundary conditions applied to the pin. Proper assessment of these factors can help determine if the high stress values are valid or artificially inflated. Accurate interpretation of FEA results is crucial for ensuring structural integrity.
mohamedibr752
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Greetings to all,

I am doing FEA analysis of a jib crane. I am using Autodesk Inventor.

The results show that the max Von Mises stress in the support pin is 773 MPa. This value exceeds the yield strength of the Carbon Steel. Does this mean that the Pin will fail under load ?

Full Assembly.jpg

Boom Support Pin_Stress.jpg
 
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It could mean that, but you need to do a careful analysis of your boundary conditions, mesh density, and potential geometry issues that might be causing an artificially high result.

What does your mesh density look like on the pin, and what boundary conditions are you using to support it in the plate?
 

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