This method mimics how production proccesses create random pores in the structure. If an element is selected as a pore element, matrix material stiffness is modified according to the user-defined input. Therefore, if a micro scale model is used, only matrix elements are used to generate pores. In macro scale models, only matrix material stiffnes value are modified.

You can define an element set to limit the porous area. This can be done by ensuring the source file contains the element set definition, or by adding an element set file to the source file using the *INCLUDE keyword. The Envyo application recognizes an element set declaration automatically. Only one element set can be declared.