Method for identification of elastic properties of laminates based on experiment design

Abstract A numerical-experimental method for the identification of mechanical properties of laminated composites from the experimental results is developed. For the first time it is proposed to use the experiment design to solve the identification (inverse) problems. The basic idea of the proposed approach is that simple mathematical models (response surfaces) are determined only by using the finite element solutions in the reference points of the experiment design. Therefore, a significant reduction (about 50–100 times) in calculations of the identification functional can be achieved in comparison with the conventional methods of minimization. Numerical examples of identification of elastic properties of different laminates from the measured eigenfrequencies of plates are discussed.

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