23 lines
982 B
Markdown
23 lines
982 B
Markdown
To model composite laminate in the context of mechanics, there exist a few models :
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## Equivalent single layer (ESL)
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Those theories works by computing the homogenized material properties, and solving only at the mid plane. They are useful for global response for thin laminates and are computationnally inexpensive.
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(see [[Equivalent Single Layer Theories]])
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## Layerwise (LW)
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Those theories describe kinetically each layer. They can be used for very thick laminate, and useful to compute delamination. They predicts correct inter-laminar stresses and there is no need of shear correction factor.
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(see [[Layerwise Theories]])
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## Zig-Zag
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[[Layerwise Theories]] with shear continuities between layers to keep the same number of degrees of freedom as the number of layers is increased. (so less computationally expensive)
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It captures the "zig-zag" pattern of displacements through the thickness that occurs due to different layer stiffness.
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(see [[Zig-Zag Theories]]) |