ANALYSIS-COMPUTATION ON LARGE DEFORMATION OF SMAs COMPOSITE MATERIAL LAMINATE

The modulus of SMAs varied with the stage of phase transformation and it brought large recovery stress of restrained recovery. By laying Shape Memory Alloys(SMAs) wires in the composite material laminate,the property of the composite laminate was improved and strengthened. Besides, bending and torsion of the laminate can be found and governed.How to calculate the mechanics behavior correctly is the base of shape control and design and applying of shape memory alloy composite material structures.The nonlinear finite element analysis of the composite laminate includes the thermodynamic behavior and large deformation recovery of the SMAs wires,and by comparing the experimental result with the analytical result, some significant conclusion was obtained.