Laminate Composites > Creating a laminate physical property > Defining laminate properties
Relationship between shell mesh and reference plane
The shell offset displaces the laminate reference plane from the shell mesh.
Offsetting the laminate midplane from the reference plane is not the same as specifying a shell offset: shell offset is defined in the preprocessor and offsets, in the element normal direction, the element’s nodes from the reference plane. It is possible to specify a shell offset, and at the same time offset the laminate midplane from the reference plane.
| Laminates with zero shell offset (1) | ||
|---|---|---|
| Laminates with nonzero shell offset (2) | ||
| Midplane reference plane | User specified reference plane |
The plus sign,, indicates the mesh element surface, the plane of nodes.
Defining the shell offset
The shell offset is defined in the Mesh Associated Data dialog box for the following solvers:
Simcenter Nastran
MSC Nastran
LS-DYNA
Simcenter Samcef
Simcenter 3D Multiphysics
For ANSYS and Abaqus, the offset is defined in the Solver Properties group of the Laminate Modeler dialog box.
How do I
Define a reference plane location
Specify a user-defined failure theory
Learn more
Defining laminate properties
Defining plies and a stacking sequence
Validating laminate properties and strength
Advanced post processing of laminate results
Predefined laminate physical property (Simcenter Samcef)
Look up more details
Stacking recipe
Reference plane location
Symmetric and balanced laminate
Predefined Laminate Physical Property dialog box (Simcenter Samcef)
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Related Topics
Laminates failure analysis
Relationship between shell mesh and reference plane, Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id1535497 · retrieved 2026-07-17