Accessing Section and Fiber data from material

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Location: Texas A&M

Accessing Section and Fiber data from material

Post by cmckee » Sun Apr 04, 2021 9:28 am

Is it possible to access the information related to section type or fiber area from within a derived UniaxialMaterial?

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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Re: Accessing Section and Fiber data from material

Post by mhscott » Mon Apr 05, 2021 12:21 pm

Codi, can you email me so we can discuss this further?

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