Hello Mahmoud,
As a first step, you could evaluate the risk of delamination using a failure criteria such as Puck 3D. See the ACP documentation for more informaiton:
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v231/en/acp_ug/acp_compmodel_compfailure.html?q=delamination
If you want to explicitly model the delamination and have ply separation, you could do this using interface layers in ACP:
Here is more information from the ACP doc:
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v231/en/acp_ug/acp_ug_interface_layer_properties.html?q=delamination
If you have access to the Ansys Learning Hub (ALH), you will find a workshop on delamination in the following training course:
https://jam8.sapjam.com/groups/YHNivy2FbzTCwBmZhqlMGS/documents/dPAyVTKlaMzI1pyYEXtaKs/slide_viewer?_lightbox=true
Let me know how it goes.
Reno.