Form: Define Materials
The material properties in ETABS are always linear elastic. Use the Define menu > Material Properties command to access the Define Materials form. Use that form to add, modify, or delete material properties.
Add New Material button. Click this button to access the Add New Material Property form and initiate the material definition.
Add Copy of Material button.
Highlight the name of the previously defined material in the Materials area of the form.
Click the Modify/Show Material button to access the Material Property Data form .
Use that form to change the appropriate entries.
Click the OK button to close the form and return to the Define Materials form.
Modify/Show Material button.
Highlight a previously defined material property in the Materials list.
Click the Modify/Show Material button to display the Material Property Data form.
Enter the necessary changes to the material property.
Delete Material button.
Highlight the previously defined material property in the Materials list.
Click the Delete Material button.