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University of New Mexico
A Critical Evaluation of Computational Fracture Using a Smeared Crack Approach in MPM
Abstract
dc:description.abstractAn evaluation of the smeared crack representation of material failure using the material-point method (MPM) as a feasible computational failure approach is performed. The spatial descretization in MPM is defined by a grid of cells that represent space and a set of points that represent the deformable solid. A grid orientation bias in the numerical results is demonstrated. Solution accuracy is lost when failure surface and grid line orientations are not aligned. Causes of the grid orientation dependence are identified, but the problem remains unresolved. Limited use of the smeared crack approach in MPM for solving problems of material failure is advised.
Degree
thesis:*- Name thesis:degree_name
- Mechanical Engineering
- Level thesis:degree_level
- Doctoral
- Discipline thesis:degree_discipline
- Mechanical Engineering
- Year
- 2011
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Sanchez, Jason
- Contributors dc:contributor
-
- Khraishi, Tariq
- Schreyer, Howard
- Sulsky, Deborah
- Yu-Lin, Shen
Subjects
dc:subject × 5Rights
- Language dc:language
- English
Identifiers
dc:identifier.*- Identifier
- https://digitalrepository.unm.edu/me_etds/8
- OAI identifier oai:identifier
- oai:digitalrepository.unm.edu:me_etds-1007