Numerical Investigation of Crack Growth in Metals and Composites - Ahmad Lone, Altaf;Jameel, Azhar;Hussain Din, Sajad
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This work presents the simulation study of fracture behavior of steel and composites. The crack growth behavior of the material is simulated by extended finite element method (XFEM). XFEM allows the modeling of arbitrary geometric features independently of the finite element mesh. The crack surface elements are enriched by Heaviside function whereas, crack front elements treated by asymptotic functions. Ramberg-Osgood material model coupled with damage is used to simulate the crack propagation. The experimental data is obtained from extensive literature review of literature published in last…mehr

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Produktbeschreibung
This work presents the simulation study of fracture behavior of steel and composites. The crack growth behavior of the material is simulated by extended finite element method (XFEM). XFEM allows the modeling of arbitrary geometric features independently of the finite element mesh. The crack surface elements are enriched by Heaviside function whereas, crack front elements treated by asymptotic functions. Ramberg-Osgood material model coupled with damage is used to simulate the crack propagation. The experimental data is obtained from extensive literature review of literature published in last five years. Numerical simulation is performed on the commercial software ABAQUS. The study aims at further extensive detailed study of fracture mechanics design. The design considerations are further evaluated using benchmark literature tests like four point bend and compression-tension tests.The knowledge has been extended to solve some practically important problems like turbine disk and surface cracking. A design feature leak before break have been given due consideration by solving the problems with high pressure pipes with internal cracks.
Autorenporträt
Altaf Ahmad Lone es M. Tech en Ingeniería Mecánica, de la Facultad de Ingeniería SSM. Ha trabajado bajo la dirección del Dr. Din Sajad Hussain, Director de la Facultad de Ingeniería de SSM, y ha sido co-supervisado por el Dr. Azhar Jameel, Profesor Asistente y Jefe del Departamento de Ingeniería Mecánica de la Universidad Islámica de Jammu y Cachemira.