Elastic characterization of laminated composites based on multiaxial tests

This paper presents a technique that continuously identifies the elastic moduli of laminated composites from multiaxial tests and its application to multiaxial identification. Unlike the conventional characterization where materials are characterized uniaxially, the technique identifies the elastic moduli by considering specimens on a continuum basis. The technique further controls the multiaxial testing machine by extracting quantities from the matrix used for identification and maximizing the quantities. Numerical examples first investigate the significance, robustness and efficiency of the proposed technique where its efficacy has been then confirmed via various quantifications. The proposed technique was finally applied to a realistic characterization problem, and its practicality has been demonstrated.