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#1 2021-06-11 15:08:11

kadred
Member
Registered: 2020-02-13
Posts: 6

can i use xfem without define initial crack ?

Hello,

Is it possible to use XFEM without defining initial crack ?

In my model i dont have an initial crack, i would like to use xfem to predicts the crack initiation sites considering the applied boundary conditions. Is it possible ?

Thank you in advance for any help.

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#2 2021-06-12 04:21:13

GXA_William
Member
Registered: 2016-04-30
Posts: 51

Re: can i use xfem without define initial crack ?

Greetings Kadred.

The simple answer is yes.  In fact, XFEM allows one to use a "sane" mesh, without directly modeling the crack.

-William

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#3 2021-06-14 15:36:02

kadred
Member
Registered: 2020-02-13
Posts: 6

Re: can i use xfem without define initial crack ?

thanks for your answer.
If it possible, so what do i have to do in the step "DEFI_FISS":

"FISS=DEFI_FISS_XFEM(MAILLAGE=MAILLA,
                                          TYPE_DISCONTINUITE = / 'FISSURE', [DEFAULT]
                                                                                    / 'INTERFACE'
                                          DEFI_FISS=_F()
                                          )
"

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#4 Yesterday 05:42:21

GXA_William
Member
Registered: 2016-04-30
Posts: 51

Re: can i use xfem without define initial crack ?

Hello Kadred.

One suggestion is to look at test case SSLV315.

-William

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