HRR-dominace and the application feasibility of J -integral in heterogeneous welded joints is investigated by Moire interferometry of reflected sticking film.

• 采用反射式贴片云纹干涉法对焊接接头裂纹尖端位移场进行了测量，并考察了非均质焊接接头中的HRR主导有效性与J积分断裂判据的应用可行性。