An assumed hybrid displacement finite element method for the solution of modes I, II and III stress intensity factors which vary along an arbitrary curved three-dimensional crack front in structural components was developed for linearly elastic materials. The present method can be applied to three-dimensional mixed mode fracture problems with complex crack and structural geometries. Special crack front singular elements were developed where proper asymptotic solutions for displacements and stresses are embedded. The finite element method is presently used to analyze some important and typical flaw (fracture) problems which are commonly encountered in aerospace structural component applications.
|Number of pages||11|
|State||Published - 1978|
|Event||Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 19th - Bethesda, Md|
Duration: Apr 3 1978 → Apr 5 1978
|Conference||Collect Tech Pap AIAA ASME Struct Struct Dyn Mater Conf 19th|
|Period||04/3/78 → 04/5/78|