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ABAQUS modelling of push-out test on a shear stud. Problem with concrete not crushing.

ABAQUS modelling of push-out test on a shear stud. Problem with concrete not crushing.

ABAQUS modelling of push-out test on a shear stud. Problem with concrete not crushing.

(OP)
Hello

I am trying to model a simple push-out test on a shear stud connector. The push out test is very simplified and is essentially a block of concrete around a shear stud.

When I exert a displacement on the side of the concrete block of 20mm the reaction force is over 2000kN! The resistance should be in the region of 100kN and I can't figure out what I'm doing wrong.

All of the stresses are being exerted on the shear stud and no crushing or severe stresses appears to be happening to the concrete near the stud.

I am using the concrete damaged plasticity model and I am treating the shear stud as perfectly plastic.

I have attached material input data along with some information of the model set up which also includes a picture of the stress distribution. File link http://files.engineering.com/getfile.aspx?folder=e...

Please help! I would like to have some valid results for this simple problem and I hope to move on to modelling the same shear stud with a rubber annulus/bearing.

ABAQUS modelling of push-out test on a shear stud. Concrete not crushing! - ResearchGate. Available from: https://www.researchgate.net/post/ABAQUS_modelling... [accessed May 11, 2016].

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