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Crack propagation coupled with temperature

Crack propagation coupled with temperature

Crack propagation coupled with temperature

(OP)
In 'Abaqus 6.13',
It is possible to insert a new step after initial. The step-1 can be editted to change the incrementation size, etc..
1-I would like to know which type I need to use when I create 'step-1' in order to study the coupling 'crack propagation/temperature' in a pipe ?
2-Is it appropriate to study a propagating crack with the type 'static,general' in step-1 ?
Thanks.

RE: Crack propagation coupled with temperature

I would go for Dynamic explicit, temp

RE: Crack propagation coupled with temperature

(OP)
When using “dynamic/Temp-disp, Explicit”, I cannot select the feature PHILSM in Failure/Fracture in Field Output request. This feature is available with static/general. PHILSM is used to visualise the propagation of the front crack.

I obtain the following error message:
The following history output requests are applied to XFEM cracks which are not stationary XFEM cracks:
H-Output-1
The Input file was not generated, and the job was not submitted for analysis

RE: Crack propagation coupled with temperature

(OP)
If I setup the model with Step-1>Static/General, and then replace ‘Static/General’ by ‘dynamic/Temp-disp, Explicit’ in Step-1, I get the following message at the end of the run:
ERROR: THIS KEYWORD IS NOT AVAILBLE IN Abaqus/Explicit
LINE IMAGE: *enrichment, name=CRACK-1, type+PROPAGATIONCRACK,
Elset=ASSEMBLY_PICKEDSET6

RE: Crack propagation coupled with temperature

XFEM is only available in A/Standard.

RE: Crack propagation coupled with temperature

(OP)
Is it possible to create a dynamic crack using XFEM ?

RE: Crack propagation coupled with temperature

See Abaqus Users Manual 10.7.1 Modeling discontinuities as an enriched feature using the extended finite element method

Quote (Manual)


Modeling discontinuities, such as cracks, as an enriched feature:
:
- can be performed using the static procedure, the implicit dynamic procedure, the low-cycle fatigue analysis using the direct cyclic approach, the geostatic stress field procedure or coupled pore fluid diffusion/stress analysis
:

RE: Crack propagation coupled with temperature

(OP)
When we study the propagation of a XFEM crack (with the procedure 'static/general' or 'dynamic implicit') using a predefined field>temperature, will the temperature have an impact on the crack behaviour (i.e. is there a coupling crack/temperature) ?

RE: Crack propagation coupled with temperature

You will get thermal expansion when you've defined this material behavior and you can make material data and other properties temperature dependent.

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