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Laminate Analysis

PERMAS-LA Laminate Analysis

The laminate analysis serves for the modeling and analysis of multi-layered fibre-reinforced composites. Therefore, PERMAS provides for 3-node and 4-node shell elements.

Out of the pre-processing with MEDINA or I-DEAS the geometry, the boundary conditions and loads as well as the material set-up of the laminate is used. From the number and sequence of layers and their thickness, fibre orientation, and material properties the usual ABD matrices are determined.

The analysis results in element forces, from which the layer stresses and strains are derived. Using the MEDINA post-processor, failure criteria, failure indices, and safety factors may be evaluated. As usual, all other post-processing features may be used for composite structures in addition.