Define a linear elastic material for the ply section.
Helius PFA cohesive materials can be used in the same model with standard (ply based) Helius PFA materials. In fact, the ability of the tool to robustly determine solutions for analyses that have both intralaminar (fiber and matrix damage) and interlaminar (delamination) is one of its main advantages. Since the focus of this tutorial is the demonstration of the cohesive functionality of Helius PFA, the ply material response will be linear elastic (i.e. failure is not permitted to occur in the plies). Refer to Tutorial 1 for a demonstration of the ply-based failure capabilities.
The material properties for the linear elastic ply material are given below. This material is used to define the ply section, not the cohesive section.
E = 1.0E+15 Pa
v = 0.25
- To create this material, click Main Menu > Preprocessor > Material Props > Material Models.
- Select the Structural > Linear > Elastic > Isotropic from the list of material models available.
- Enter the properties listed above and click OK. Close the Define Material Model Behavior dialog. Note: Since we are using dimensions of Newtons and millimeters, 1.0E+15 Pa should be entered as 1.0E+9 MPa.
