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Re: [Getfem-users] crack tip and orientation

From: Yves Renard
Subject: Re: [Getfem-users] crack tip and orientation
Date: Tue, 26 Nov 2013 15:42:22 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1

Dear Wen,

The global_function_on_level_set represents indeed a function defiened a priori on the whole mesh and on local coordinates (x,y) defined by the two level sets representing a crack. In particular, this suppose that the two level-sets define correct coordinates i.e. being close to signed distances.

And concerning the function get_crack_tip_and_orientation in getfem_crack_sif.h, indeed should find the intersection of the two level-sets (may be indicating a candidate zone), but it has not been implemented


Le 22/11/2013 23:06, Wen Jiang a écrit :
Dear all,

I am currently implementing a 2d crack propagation code and not very clear about some functions.

1) global_function_on_level_set

what does this function do? Is this global function defined on a local coordinates represented by a  level set?

2) get_crack_tip_and_orientation

I understand that this function has not been implemented yet. could you give me any suggestions on how to implement it in getfem++?

Thanks in advance.


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  Yves Renard (address@hidden)       tel : (33)
  Pole de Mathematiques, INSA-Lyon             fax : (33)
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