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When composite materials with discontinuous fibers are processed into their final shape, any flow alters the fiber orientation pattern and affects the properties of the final composite. It is now standard practice to predict fiber orientation patterns and the resulting mechanical properties in molded parts, and commercial software that can do this is available for injection and compression molding. In this webinar we will look briefly at the history of fiber orientation modeling, discuss the two rules that explain all fiber orientation phenomena qualitatively, and place the many variations of fiber orientation models (ARD, iARD, RSC, RPR, etc.) in context. We will then examine how fiber orientation modeling is likely to develop in the future, including recent innovations in non-orthotropic closure approximations and the reconstruction of orientation distribution functions.
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