For example, I have a macro-mechanical material model that requires the cross-sectional area of the bar - I can input that parameter no problem. Within this model, I also include a time-dependent cross-section and strength reduction due to corrosion.
When used in a straight layer fiber, F = stress *A. Without redefining the area of the fiber, to get the appropriate resulting force in the fiber I need to additionally scale the stress from the material model relative to the fiber area. But this is not necessary if the material is used with a uniaxial section. I would also like to be able to include a check to make sure the area input into the material model matches the area assigned to the fiber.
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