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Laminate Composites > Laminates theory > Micromechanics

Micromechanics

Laminate Composites uses Micromechanics theories to compute equivalent ply properties based on the properties of the constituent fiber and resin materials. These equivalent properties are stored in Ply Materials.

The micromechanics predictions should be verified by tests, which should preferably account for material and production variations over batches and lots.

The following Ply Material types are supported:

  • Unidirectional fiber

  • Woven fiber

  • Particulate reinforced

  • Randomly oriented short fiber

Note:

In the following, superscript f designates a fiber property whereas superscript m designates a matrix property.

Vf corresponds to the volume of the fibers (0 < Vf < 1) whereas Vm designates the volume of the matrix (0 < Vm < 1) with:

V^f + V^m \leq 1

How do I

Create a fiber-reinforced ply material

Look up more details

Unidirectional fibers

Unidirectional fibers strength predictions

Woven fibers

Woven fibers strength predictions

Sheared woven fibers

Sheared woven fibers thermal properties

Sheared woven fibers strength predictions

Randomly oriented short fiber reinforced ply

Randomly oriented short fiber reinforced ply strength predictions

Particulate reinforced ply

Particulate reinforced ply strength predictions

Micromechanics references

Fiber-reinforced ply material

Fiber-reinforced ply material types

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Micromechanics, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id626811 · retrieved 2026-07-17