Modeling of geometric configuration and fiber interactions in short fiber reinforced composites via new modified Eshelby tensors and enhanced mean-field homogenization

Determination of the effective elastic properties unidirectional short fiber reinforced composites (SFRCs) is a key fundamental requirement which usually estimated by mean-field homogenization (MFH) methods. Available classical MFH methods only account for volume fraction and aspect ratio fibers do not consider physical cylindrical geometry fibers. Moreover, MFHs are designed predicting SFRCs with distinct packing configurations order In this work, new modified Eshelby tensors associated an enhanced developed resolve mentioned limitations available preserve their computational efficiency. While used in depend on fictitious ellipsoidal inclusion material matrix, introduced additionally as well interactions different configurations. non-uniform homogenizing eigenstrains required accurate also incorporated proposed analytical treatment. Predictions various compared those obtained from Finite Element Method implementing periodic boundary conditions very good agreements observed. It shown that configuration geometrical specifications can significantly affect SFRC.