A finite element analysis is carried out to calculate the stress-intensity factor along the front of a semi-elliptical surface flaw subjected to bending loadings. A total of 797 nodes and 126 isoparametric three-dimensional elements are employed to generate the mesh. The stress and strain singular behavior caused by the defect is modelled by shifting the midside crack border nodes to quarterpoint positions. The relative depth of the crack deepest point is made to vary from 0.1 to 0.4, while the aspect ratio of the flaw is assumed to be equal to 0.2 and 1.0 respectively. Results are compared with those obtained by other Authors.
Finite element analysis of part-through cracks under bending / Carpinteri, Andrea. - (1991), pp. 65-77. (Intervento presentato al convegno International Symposium on Fatigue and Fracture in Steel and Concrete Structures).
Finite element analysis of part-through cracks under bending.
CARPINTERI, Andrea
1991-01-01
Abstract
A finite element analysis is carried out to calculate the stress-intensity factor along the front of a semi-elliptical surface flaw subjected to bending loadings. A total of 797 nodes and 126 isoparametric three-dimensional elements are employed to generate the mesh. The stress and strain singular behavior caused by the defect is modelled by shifting the midside crack border nodes to quarterpoint positions. The relative depth of the crack deepest point is made to vary from 0.1 to 0.4, while the aspect ratio of the flaw is assumed to be equal to 0.2 and 1.0 respectively. Results are compared with those obtained by other Authors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
