Laminate Composites > Laminates theory > Laminates failure analysis
Maximum strain failure analysis (2D)
Failure Index
The failure index F output by the software corresponds to the largest value of:
For variable definitions see Laminate failure analysis nomenclature.
Margin of Safety
Margins of safety, MS, are computed as follows:
Strength Ratio
The strength ratio, SR, is:
Look up more details
Laminate failure analysis nomenclature
Hill failure analysis (2D)
Hill failure analysis (3D)
Hoffman failure analysis (2D)
Hoffman failure analysis (3D)
Tsai-Wu failure analysis (2D)
Tsai-Wu failure analysis (3D)
Maximum stress failure analysis (2D)
Maximum stress failure analysis (3D)
Maximum strain failure analysis (3D)
LaRC02 failure analysis (2D)
Puck failure analysis (2D)
Von Mises yield and Von Mises ultimate failure analyses (2D and 3D)
Maximum transverse shear stress
Core ply material failure analysis
Interlaminar failure analysis (2D and 3D)
Laminate failure analysis references
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Maximum strain failure analysis (2D), Simcenter 3D 2021.1 Series
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id626776 · retrieved 2026-07-17