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Buckling failure

Buckling failure

Buckling failure

(OP)
Hello dears,
I am trying to model a four-point loading test for hollow-rectangular beam made from GFRP. I build the model in ABAQUS and defined almost everything for the analysis except the failure mode I got from the experimental. This beam failed due to buckling of the webs but don’t know how to define this in my model. Any advices please.

Regards

RE: Buckling failure

Predicting local buckling analytically is a bit of a trick, even with homogenous materials, but with random-orientation glass fiber reinforcement...well, good luck.

I believe Abaqus will do that analysis for you. You may need to purchase an additional module or something, but basically you need to solve the eigenvalue problem for your mesh with applied loads. Read the manual, or google it...I found this: http://www.3ds.com/products-services/simulia/servi...

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