ETDs @PUC-Rio
| Título: | PHOTOELASTIC GENERAL METHOD TO DETERMINE STRESS INTENSITY FACTORS KI AND KII | ||||||||||||
| Autor: |
TIAGO FERREIRA DA COSTA |
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| Colaborador(es): |
JOSE LUIZ DE FRANCA FREIRE - Orientador |
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| Catalogação: | 24/OUT/2012 | Língua(s): | PORTUGUESE - BRAZIL |
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| Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
| 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/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=20611&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=20611&idi=2 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.20611 | ||||||||||||
| Resumo: | |||||||||||||
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A computational method has been developed to determine mixed-mode stress intensity factors from isochromatic fringe patterns. The method proposes a general formulation of the stress field around a crack tip. It searches to obtain not only the stress intensity factors but also all the other non-singular stress field parameters, associated to different geometries, which interfere with the singular field near the crack.
The method has been tested in bars with 90 and 45 degree cracks and the results, compared to experimental and analytical data found in literature.
Three factors influencing in KI and KII determination have been studied: the quantity of data collecting points, its position and number of parameters considered in the non-singular field.
Three models of transverse butt welded joints with 45 and 90 degrees cracks placed in different positions relative to weld reinforcement, have been analyzed as application examples.
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