Shell properties
To assign the section and material properties to the shell choose:
Data->General properties
As the properties of the shell are isotropic for this example, choose condition over surfaces: Shell
.
To assign the properties to the shell, the values are:
- Local axes system Default
is chosen. Following the criteria given before, X’ axe will point towards positive global Y axe. Z’ axe will be normal to the elements and Y’ will be contained in the plane XZ.
- Units will be treated with more detail in another section.
-
Thickness
is the width of the shell in the orthogonal direction to the shell surface. In this case its value is .
-
E
is the Young modulus (4.32 e8 N/m2
) and nu
is the Poisson coefficient with value this case (it is non-dimensional).
- If the Specific Weight is left to 0.0, then the self-weight of the shell is not considered. Its default units are N/m3
.
Once the values are filled in, the condition must be assigned to the surface that defines the shell.
The conditions that have been assigned can be viewed with the Draw button in the conditions window
.