Properly define a Simulation Composite Analysis material.
If Simulation Composite Analysis is used to provide the constitutive relations for a particular composite material, ANSYS considers the composite material to be a "user-defined material". Consequently, ANSYS requires the following command for each Simulation Composite Analysis "user-defined material" that is used in the finite element model:
COMPAN, argument1, argument2, . . .
The COMPAN command calls the Simulation Composite Analysis macro. The arguments provided as part of the COMPAN command are passed to the macro. The specific values available for the different arguments of the COMPAN command (along with their formatting requirements) will be discussed later (Use ANSYS APDL to Create Input Files and Use a Text Editor to Convert ANSYS Input Files). For now, it suffices that you are aware the COMPAN command is used to identify each composite material processed by Simulation Composite Analysis. The COMPAN command also identifies the specific form of multiscale constitutive relations used for each composite material.
For cohesive user materials defined with Simulation Composite Analysis, ANSYS requires the use of the COHAN command.
COHAN, argument1, argument2, . . .
The COHAN command calls the Simulation Composite Analysis macro. The arguments provided as part of the COHAN command are passed to the macro. The specific values available for the different arguments of the COHAN command (along with their formatting requirements) will be discussed later (Use ANSYS APDL to Create Input Files and Use a Text Editor to Convert ANSYS Input Files). For now, it suffices that you are aware the COHAN command is used to identify each cohesive material processed by Simulation Composite Analysis. The COHAN command also identifies the specific form of multiscale constitutive relations used for each composite material.