• Journal of the Computational Structural Engineering Institute of Korea
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• v.37 no.5
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• pp.317-326
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• 2024

In this paper, compression molding-structural coupled analysis was proposed to accurately consider the effect of initial compression molding conditions on the mechanical behavior of short-fiber reinforced composite structures. To this end, local short-fiber orientations depending on the initial charge conditions were investigated using compression molding analysis, and a mean-field homogenization scheme was employed to efficiently derive equivalent orthotropic material properties determined by short-fiber orientations. Furthermore, based on the refined finite element model with short-fiber orientation, compression molding-structural coupled analysis precisely described the locally independent mechanical behavior induced by initial molding conditions. Consequently, it could be confirmed that the proposed analysis model provides a reasonable solution in the design process of short-fiber reinforced composite structures manufactured by compression molding.