Numerical Failure Analysis of Laminated Beams Using a Refined Finite Element Model

Abstract In the present investigation, laminated composite beams subjected to a bending static loading are studied in order determine their failure mechanisms and first ply (FPF) load. The FPF analysis is performed using refined rectangular plate element. element formulated based on classical lamination theory (CLT) calculate in-plane stresses. To achieve this goal, several criterions, including Tsai-Wu, Tsai-Hill, Hashin, Maximum Stress criteria, used predict mechanisms. These criterions implemented within finite code different damages responses of from initial final failure. numerical results obtained compare favorably with those given by analytic approaches. It observed that very close analytical results, which demonstrates accuracy Finally, parameters, such as fiber orientations, stacking sequences, boundary conditions, considered understand effects strength these beams.