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*SHELL SECTION

Keyword type: model definition

This option is used to assign material properties to shell element sets. The parameters ELSET and MATERIAL are required, the parameters ORIENTATION, NODAL THICKNESS and OFFSET is optional. The parameter ELSET defines the shell element set to which the material specified by the parameter MATERIAL applies. The parameter ORIENTATION allows to assign local axes to the element set. If activated, the material properties are applied to the local axis. This is only relevant for non isotropic material behavior. The parameter NODAL THICKNESS indicates that the thickness for nodes in the element set are defined with an extra *NODAL THICKNESS card and that any thicknesses defined on the *SHELL SECTION card are irrelevant. Finally, the OFFSET parameter indicates where the midsurface of the shell should be in relation to the reference surface defined by the surface representation given by the user. The unit of the offset is the thickness of the shell. Thus, OFFSET=0 means that the reference surface is the midsurface of the shell, OFFSET=0.5 means that the reference surface is the top surface of the shell. The offset can take any real value.

First line:

- *SHELL SECTION
- Enter any needed parameters.

Second line (only read if the first line does not contain NODAL THICKNESS):

- thickness

    Example:

    *SHELL SECTION,MATERIAL=EL,ELSET=Eall,ORIENTATION=OR1,OFFSET=-0.5
    3.

assigns material EL with orientation OR1 to all elements in (element) set Eall. The reference surface is the bottom surface of the shell and the shell thickness is 3 length units.

Example files: shell1, shell2, shellbeam.

Next: *SOLID SECTION Up: Input deck format Previous: *SELECT CYCLIC SYMMETRY MODES Contents