Research on Buckling Load of Cylindrical Shell with an Inclined through Crack under External Pressure and Its Solution

In order to evaluate the reliability of cracked cylindrical shell effectively and reasonably, study load capacity structures understand failure modes structures, in this paper finite element method is adopted for shells with mixed mode crack. The models an inclined through crack under external pressure were established by method, elastic elastic-plastic buckling loads calculated. influences length (c), angle (θ), length-radius ratio (L/R), radius-thickness (R/T), boundary conditions on explored. analysis simple support shows that bearing decreases increase length- radius ratio, inclination angle. can weaken shell. variation consistent load. Under clamped support, evidently higher than support. post-buckling further changes do not affect pre-buckling deformation shells, but capacity. relationship between different (simply supported clamp-supported) geometrical parameters (length-radius Angle) was obtained nonlinear regression. results solution predict