TRABALHOS DE FIM DE CURSO @PUC-Rio
| Título: | STRESS CONCENTRATION AND INTENSITY FACTORS DETERMINATION FOR A KEY-HOLE SPECIMEN BY TSA | ||||||||||||
| Autor(es): |
ROBERTO DE PAULA CARVALHO JUNIOR |
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| Colaborador(es): |
JOSE LUIZ DE FRANCA FREIRE - Orientador |
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| Catalogação: | 02/OUT/2019 | Língua(s): | PORTUGUESE - BRAZIL |
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| Tipo: | TEXT | Subtipo: | SENIOR PROJECT | ||||||||||
| Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=45682@1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=45682@2 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.45682 | ||||||||||||
| Resumo: | |||||||||||||
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In this present work thermoelastic stress analysis is used to determine fatigue limit, stress concentration and intensity factors and crack growth rate based on Paris law, using tensile test and key-hole specimens of API 5L grau B material. The tensile test specimen will be used to determine the fatigue limit of the material exempting the key-hole specimen of any primary damage to determine the others properties. In all experiments, a infrared microbolometer low cost camera (FLIR A655sc) was used with commercial
software of TSA data analysis (Deltatherm2 of Stress Photonics Inc.). The key-hole specimen will be subjected to traction (mode I, uniaxial stress state) in order to obtain KI . It s worth pointing out that the Risitano s method (thermografic method) has uncertainty around 15 percent, which must be taken into account in the calculation of the fatigue limit. Finally, compare the coefficients of crack propagation rate of Paris Law with those obtained experimentally.
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