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Stress intensity factor in composties?

Stress intensity factor in composties?

Stress intensity factor in composties?

(OP)
In field output, how come we could not find out any stress intensity factor? (Modeling a notched panel)

RE: Stress intensity factor in composties?

If supported for your model, you have to model a crack or use *CONTOUR INTEGRAL, TYPE=K FACTORS   . You should check the usage details in documentation.

If you use CAE in v6.5 , see the Interaction module, menu ->Special->Crack->Create

For older Abaqus version you need to use the Keyword editor.

RE: Stress intensity factor in composties?

(OP)
Hi, I already created a crack by using ../special/crack/create.. Then, while submitting a job, it showed
"
The following crack objects are not associated with any history output request. "

What's it mean? (I check failure/fracture in history output.)

RE: Stress intensity factor in composties?

After you defined the crack in the Interaction module you have to go to the Step module and create a new history output request associated with the crack.

Step module->Output Menu->History Output Requests->Create

-Name the request.

-In the 'Domain' box select 'Contour Integral' and the name of the crack.

-Enter an integer for number of contours (I recommend at least 3 or 4.)

-Then select Stress intensity factors.

This procedure is described also in the documentation,
ABAQUS/CAE User's Manual - Section 20.1 Modeling fracture mechanics. (20.1.6 Contour integral output). Did you check it ?

RE: Stress intensity factor in composties?

(OP)
Hi, thanks. I got it.

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