tailieunhanh - Numerical analysis of mixed mode I/II stress intensity factors of edge slant cracked plates

Mixed mode I/II stress intensity factors of an edge slant-cracked plate under tensile loading were assessed. A two-dimensional finite element analysis was employed using ABAQUS. Various crack lengths and angles were analyzed. The effect of the crack location at the plate edge was also examined. Crack initiation angles were calculated. | Numerical analysis of mixed mode I II stress intensity factors of edge slant cracked plates Engineering Solid Mechanics 2017 61-70 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Numerical analysis of mixed mode I II stress intensity factors of edge slant cracked plates A. S. Fayed Mechanical Engineering Department Jazan University KSA on sabbatical leave from Materials Engineering Department Faculty of Engineering Zagazig University Egypt A R T I C L EI N F O ABSTRACT Article history Mixed mode I II stress intensity factors of an edge slant-cracked plate under tensile loading Received 6 March 2016 were assessed. A two-dimensional finite element analysis was employed using ABAQUS. Accepted 5 August 2016 Various crack lengths and angles were analyzed. The effect of the crack location at the plate Available online edge was also examined. Crack initiation angles were calculated. In general modes I and II 5 August 2016 Keywords stress intensity factor increase with increasing crack length. However the rate of increase in Stress intensity factor mode I SIF decreases with increasing the main crack angle. The results showed that stress Mixed mode I II intensity factors decreased ad the crack mouth approaches the edge mid line. The crack location Slant edge crack becomes more significant as the crack length increases. The angle of first cracking depends on Crack initiation angle crack length location and angle. Two dimensional finite element 2017 Growing Science Ltd. All rights reserved. 1. Introduction Due to the vast development in engineering structures cracks may exist under complex state of loading. A failure may occur despite of the validity of strength of materials and elasticity theory. Therefore a wide development in crack propagation study is needed in the fracture mechanics filed. Mixed mode crack propagation is a vital in fracture mechanics. This includes the determination of crack initiation angles .