Journal of Engineering Materials and Technology · 1978 · 32 citations · 0 references
EngineeringComputational EngineeringMechanical EngineeringComputational MechanicsFinite Element AnalysisSolid MechanicsElasticity TheoryFracture MechanicsFracture PropagationPlate AnalysisPlate TheoryStructural Finite Element AnalysisCracksFinite Element ModelingFinite Element Stress AnalysisFlat PlatesLinear Elastic AnalysisLinear Elastic BehaviorLinear Elastic Fracture MechanicsPlate Finite Element Analysis
The finite element-alternating method, a linear elastic solution technique, is refined and applied to problems of quarter-elliptical cracks in irregular bodies. The method involves the iterative superposition of a finite element solution for stresses in an unflawed body and an analytic solution for stresses in an infinite solid containing a flat elliptical crack. Mode-one stress intensity factors are presented along the periphery of quarter-elliptical cracks emanating from open fastener holes in flat plates. Results are shown for a variety of crack geometries and two hole-diameter to plate-thickness ratios. Comparisons are made with experimental results of other authors.