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Modelling the stress intensity factor as a function of time

Posted 11 mars 2014, 14:35 UTC−4 Structural Mechanics Version 5.0, Version 5.1 1 Reply

Rayman Lam
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I am trying to use COMSOL for my project to model the stress intensity factor as a function of time for a center crack plate with an applied thermal stress.
1 Reply Last Post 7 juil. 2015, 14:10 UTC−4
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Hello Rayman Lam

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Ismail Isa Danfillo
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Posted: 9 years ago 7 juil. 2015, 14:10 UTC−4
Hi,

I am also trying to determine SIF for 3D geometry (see attached model). The idea is to compare the line (1D), surface (2D) and volume (3D) J-integral methods. But my results do not seem to be consistent so far. Any ideas s to why????

I have used the contour equation:- 2*((solid.Ws)+(-((solid.sx+solid.sxy)*uX*Nx+(solid.sxy+solid.sy)*vX*Ny))) for all cases only difference is the type of integral and edges, boundary, and domains used in derrived value node respectively. Based on reference: www.comsol.com/model/single-edge-crack-988

Thanks so much in advance.
Kind regards
ISA D.
Hi, I am also trying to determine SIF for 3D geometry (see attached model). The idea is to compare the line (1D), surface (2D) and volume (3D) J-integral methods. But my results do not seem to be consistent so far. Any ideas s to why???? I have used the contour equation:- 2*((solid.Ws)+(-((solid.sx+solid.sxy)*uX*Nx+(solid.sxy+solid.sy)*vX*Ny))) for all cases only difference is the type of integral and edges, boundary, and domains used in derrived value node respectively. Based on reference: www.comsol.com/model/single-edge-crack-988 Thanks so much in advance. Kind regards ISA D.

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