Symmetric and balanced laminate

A laminate is symmetric when the ply orientations of the bottom half of the laminate are mirror images of the fiber orientations above the mid plane of the laminate. Symmetric laminates can have an even or odd numbers of plies. If the laminate reference plane is offset from its mid plane, then the laminate is not symmetric.

Laminates that have as many plies with positive θ orientation angles, as plies with negative θ angles (for all different values of θ) are said to be balanced.

Example of a symmetric and balanced laminate

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Define a reference plane location

Specify a user-defined failure theory

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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)

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Stacking recipe

Reference plane location

Relationship between shell mesh and reference plane

Predefined Laminate Physical Property dialog box (Simcenter Samcef)

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Laminates failure analysis

Symmetric and balanced laminate, Simcenter 3D 2021.1 Series

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