Material cracking in the flow field

Hello, I want to ask a question about the material cracking in the flow field. As shown in the figure, if the material is continuous at the beginning, then the fluid-solid boundary is continuous (AB). If the material is cracked into two parts, how to identify the newly formed edges (between AC and DB)? How does the fluid flow through the fracture


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Hi Chambernan,
I also do some researches about fracture under FSI effect. As far as I know, fluid part should identify the newly formed edges, then initialize() should be carried in each time step, as shown in https://precice.org/couple-your-code-moving-or-changing-meshes.html#pseudo-reference-domain

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