Hello, I am wondering if the Rule of Mixture equation is applicable to flexural strength and modulus of carbon fiber composites. If not, what model is the easiest one to predict the flexural properties? Thanks!
Rule of Mixture is developed primarily for conventional modulus of elasticity, starting from fundamentalequations. However it may be applied for
Flexural Strength, Flexural modulus and even for approximate density calculations for carbon fiber reinforced composites.
In the case of flexural strength and modulus of carbon fiber composites, the Rule of Mixture equation may not be the most accurate method for prediction. This is because carbon fibers have a much higher modulus of elasticity and strength than the polymer matrix, which can result in a non-linear behavior of the composite.
A more accurate model to predict the flexural properties of carbon fiber composites is the Mori-Tanaka model. This model takes into account the size and distribution of the fibers in the matrix, as well as the interface properties between the fibers and matrix.
Another model that can be used is the Hashin-Shtrikman upper and lower bounds. This model is based on the assumption that the composite is made of a mixture of two phases: a stiff phase and a weak phase.
Hello,
Here is a link related to what you basked for
https://crescent.education/wp-content/uploads/2021/03/Rule-of-Mixture-of-composites.pdf
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