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Forums
Engineering
Mechanical Engineering
Calculate the residual stress on a beam after bending
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[QUOTE="freddie_mclair, post: 6531857, member: 514429"] Hi! Thanks a lot! I think it could be very interesting if you could model with FEA what I have modeled analytically on my first post. The cross-section geometry is the one I defined in my first post: it's a squared section with ##h=51.9\mbox{ mm}## and a circular hole with a radius of ##r=17.65\mbox{ mm}##. The bending radius (before springback) is ##R_0=4917.65\mbox{ mm}##; from my analytical model, after springback, I get a radius of ##R_k=11707.5mm##. The peak stresses I get are the following: ##\sigma_{res1}=190\mbox{ MPa}## at the elastic-plastic core boundary and ##\sigma_{res2}=-140\mbox{ MPa}## at the outer surface of the beam. Here's the plot I get (I only plotted half of the beam, the other part is symmetric): [ATTACH type="full" alt="res-stress.jpg"]287995[/ATTACH] [/QUOTE]
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Engineering
Mechanical Engineering
Calculate the residual stress on a beam after bending
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