Micro-scale crack propagation using the eXtendend finite element method (XFEM)

dc.contributor.advisor Goyal, Vijay K. Jorge-Jaime, Rafael A. College of Engineering en_US
dc.contributor.committee Sundaram, Paul
dc.contributor.committee Valentín, Ricky
dc.contributor.department Department of Mechanical Engineering en_US
dc.contributor.representative Ortíz Navarro, Juan 2018-02-27T19:58:52Z 2018-02-27T19:58:52Z 2015-12
dc.description.abstract Crack propagation is a probably one of the most important subjects when it comes to structural failure. Microstructural cracks are crucial because they could lead to catastrophic failure. There has been some experimental work but very little promising computational models. We proposed a computational model based on the XFEM in ABAQUS, which is manipulated using a Python Script, to analyzing crack propagation at the microscale. The model takes into account the effects of microscale grain geometries and their orientations. The technique uses real microstructure images and random microstructural material properties. When compared with experimental data, the computational model produced very good results. The case studies show that the microcrack will follow regions of low energy. en_US
dc.description.graduationSemester Fall en_US
dc.description.graduationYear 2015 en_US
dc.description.sponsorship Affiliated with the Center for Aerospace and Unmanned Systems Engineering, a Center of Excellence of UPRM en_US
dc.language.iso en en_US
dc.rights.holder (c) December 2015 Rafael A. Jorge Jaime and Vijay K. Goyal en_US
dc.rights.license All rights reserved en_US
dc.subject XFEM en_US
dc.subject.lcsh Fracture mechanics -- Mathematics. en_US
dc.subject.lcsh Microstructure. en_US
dc.subject.lcsh Finite element method -- Computer programs. en_US
dc.title Micro-scale crack propagation using the eXtendend finite element method (XFEM) en_US
dc.type Thesis en_US
dspace.entity.type Publication Mechanical Engineering en_US M.S. en_US
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