Higher Order Crack Tip Fields for Physical Weak-Discontinuous Crack of Linear FGMs Cylindrical Shell with Reissner's Effect

摘要

The physical weak-discontinuous problem of an axis-directional interfacial crack between homogeneous material and functionally graded materials (FGMs) cylindrical shells is studied. Base on Reissner plate theory, the governing equations are derived for weak-discontinuous problems of cylindrical shells. The higher order crack tip fields of homogeneous materials and FGMs regions are given and assembled. The crack tip fields obtained also have the same nature of eigen-function as Williams' solution and the structure of higher order crack tip fields is analysed.