Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates
Non-singular terms in the series expansion of the elastic crack-tip stress fields, commonly referred to as the T-stress. The T-stress is as an additional stress field characterizing parameter to stress intensity factor (K) in the analysis of cracked bodies. T-stress is used as an important constrain...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2009-04-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero8/numero_8_art_4.pdf |
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| _version_ | 1832568711985233920 |
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| author | S. K. Kudari K. G. Kodancha |
| author_facet | S. K. Kudari K. G. Kodancha |
| author_sort | S. K. Kudari |
| collection | DOAJ |
| description | Non-singular terms in the series expansion of the elastic crack-tip stress fields, commonly referred to as the T-stress. The T-stress is as an additional stress field characterizing parameter to stress intensity factor (K) in the analysis of cracked bodies. T-stress is used as an important constraint parameter in the fracture analysis. In this investigation, three-dimensional finite element analyses have been conducted to compute the elastic T-stress considering a single edge notched tensile (SENT) specimen with varied thickness and a/W ratio. The results indicate that the T-stress depends on the specimen thickness and significantly varies along the crackfront from surface to centre of the specimen. The T-stress results obtained in the present analysis together with corresponding KI values can be used for analysis of constraint effects in a fracture specimen. |
| format | Article |
| id | doaj-art-6fa30598e24b461986a45683de526299 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2009-04-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-6fa30598e24b461986a45683de5262992025-02-03T00:45:30ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932009-04-01384551Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness platesS. K. KudariK. G. KodanchaNon-singular terms in the series expansion of the elastic crack-tip stress fields, commonly referred to as the T-stress. The T-stress is as an additional stress field characterizing parameter to stress intensity factor (K) in the analysis of cracked bodies. T-stress is used as an important constraint parameter in the fracture analysis. In this investigation, three-dimensional finite element analyses have been conducted to compute the elastic T-stress considering a single edge notched tensile (SENT) specimen with varied thickness and a/W ratio. The results indicate that the T-stress depends on the specimen thickness and significantly varies along the crackfront from surface to centre of the specimen. The T-stress results obtained in the present analysis together with corresponding KI values can be used for analysis of constraint effects in a fracture specimen.http://www.gruppofrattura.it/pdf/rivista/numero8/numero_8_art_4.pdfElastic T-stressStress intensity factorFinite element methodConstraint issue |
| spellingShingle | S. K. Kudari K. G. Kodancha Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates Fracture and Structural Integrity Elastic T-stress Stress intensity factor Finite element method Constraint issue |
| title | Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates |
| title_full | Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates |
| title_fullStr | Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates |
| title_full_unstemmed | Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates |
| title_short | Variation of stress intensity factor and elastic T-stress along the crack-front in finite thickness plates |
| title_sort | variation of stress intensity factor and elastic t stress along the crack front in finite thickness plates |
| topic | Elastic T-stress Stress intensity factor Finite element method Constraint issue |
| url | http://www.gruppofrattura.it/pdf/rivista/numero8/numero_8_art_4.pdf |
| work_keys_str_mv | AT skkudari variationofstressintensityfactorandelastictstressalongthecrackfrontinfinitethicknessplates AT kgkodancha variationofstressintensityfactorandelastictstressalongthecrackfrontinfinitethicknessplates |