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| Author(s): |
Marina Rocha Pinto Portela Nunes
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Escola Politécnica (EP/BC) |
| Defense date: | 2010-03-04 |
| Examining board members: |
Marcos Aurélio Marques Noronha;
Túlio Nogueira Bittencourt;
André Maués Brabo Pereira
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| Advisor: | Marcos Aurélio Marques Noronha |
| Abstract | |
This work deals with the analysis of Linear Elastic Fracture Mechanics (LEFM) problems using the Boundary Element Method (BEM). This method is a powerful and accurate technique of numerical analysis. The need of discretization only of the boundary of the model is one of the major advantageous features of the BEM. In Fracture Mechanics, the BEM is adequate due to its intrinsic formulation, which is based on fundamental solutions. In the LEFM, the Stress Intensity Factors (SIF) is one of the most important parameters. In the present study, this parameter is numerically analyzed by the correlation displacement technique and by an alternative technique which considers the stress field at the crack tip. The direction of the crack growth is analyzed using the criterion of Maximum Circumferential Stress. The results are compared to the analytical solution and to other results of literature. (AU) | |
| FAPESP's process: | 07/06047-8 - A new algorithm for fracture mechanics in geotechnical simulations using the boundary element method |
| Grantee: | Marina Rocha Pinto Portela Nunes |
| Support Opportunities: | Scholarships in Brazil - Master |