考虑胶层及材料损耗的磁致伸缩/压电/磁致伸缩层合材料磁电响应

bstract: The adhesive layers and the mechanical losses of materials in giant magnetostrictive material (GMM) and piezoelectric Pb(Zr,Ti)O3 (PZT) laminate composites are vital factors to impact final magneto-electric responses. The effects of the adhesive layer resulting from the shear and longitudinal deformation are considered in the governing motion equations of GMM/PZT/GMM composites, which are established based on Hamilton’s principle. The coefficients in the motion equations are specified by the material parameters. To introduce the material losses into the analysis, the mechanical parameters including the compliances of magnetostrictive and piezoelectric materials are represented as complexes. Through the motion equations along with the boundary conditions and the constitutive equations of magnetostrictive/piezoelectric effects, the magnetoelectric responses over frequency and the natural frequencies are provided. The numerical calculations of the magnetoelectric responses in GMM/PZT/GMM laminate composite is presented. By comparing the theoretical magnetoelectric response with the experimental result, it can be seen that the introduction of material losses can provide more acceptable prediction of the magnetoelectric performances.