[Gmsh] Problem with 2D mesh generation for a cracked domain

[olivier jamond]

Hello,

I am a french phd student and I am working on multiscale simulations of 
propagation of critical areas within the Arlequin framework 
(www.mssmat.ecp.fr/IMG/pdf/BenDhia.pdf). I use Gmsh to generate meshes 
at each step of the propagation of cracked domains. I'am working with 2D 
closed crack, so I would like to have duplicated points in the .geo 
file. So I have unchecked the option
"remove duplicated entities in GEO models", but it seams to exists a 
feature which deals with the intersection of the 1D mesh of the edges 
("There are 4 intersections in the 1d mesh/Gmsh splits those edges and 
tries again"). Is there any way to disable this function, or to allow 
duplicated points or self-crossed edge?

A  problematic .geo file is attached.

Thanks a lot,

Best regards,

Olivier Jamond
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