碳纤维复合材料分层缺陷涡流检测有限元分析

arbon fiber reinforced polymer (CFRP) is widely used thanks to its excellent performance. However, damages, especially delamination, can bring mortal threat to CFRP structures. We attempt to study the nondestructive testing of delamination using eddy current (EC) method. To this end, we design a novel probe consisting of two rectangular coils placed perpendicular to sample surface, and make use of the vertical sections to induce vertical EC in test sample. Perturbation of the vertical EC by delamination gives us a chance to detect delamination. Simulation results by the finite element method demonstrate the feasibility of the proposed method.