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Composite Modeling

Composite Modeling

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Composite Modeling

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The following composite modeling techniques can be used in RADIOSS:

Each layer with at least one solid

The model is large which leads to high accuracy results but need more computation resource.

composite_layer_one_solid

Mixed approach (middle layer thick)

Defines shells for top and bottom layer and solid for middle layer.

composite_mixed

Sandwich shell approach

Use only one shell element through the thickness. Use different materials to define multiple layers.

composite_sandwich_shell

In composite shell modeling there are two types of problems.

•The first is composite shell with isotropic layers (orthotropic in z direction).
For example, by Windshield modeling. Where, material LAW27 (PLAS_BRIT) or LAW36 (PLAS_TAB) can be used.
•The second is composite shell with orthotropic layers (orthotropic in x, y and z).
For example, Sandwich shell with external fiber glass layers and internal foam layer. Where, material LAW25 (COMPSH) and all shell formulation can be used, except for QEPH.