Abstract: Examples described herein relate to apparatuses and methods for predicting strength of a coupon of composite material. A first critical damage event and strain and stress distributions of the coupon is determined by performing a finite element analysis (FEA) of a finite element model of the coupon. The first critical damage event is associated with the strain and stress distributions. The strain and stress distributions are received as inputs to at least one surrogate model. A final load corresponding to a final failure of the coupon is determined using the at least one surrogate model.

Abstract: A method for determining virtually a set of design allowables for a composite material is disclosed. The method includes receiving information about the composite material and a given set of architectures, available test data of the composite material, and a test matrix identifying desired tests to be performed virtually on the composite material and different set of architectures. Using the material information and available test data, a reverse engineering process is used to determine micromechanical material properties. Finite element models of relevant test specimens are generated according to the test matrix and integrating the micromechanical material properties, and are analyzed. A set of allowables and associated properties is generated based on the finite element analyses results.