Biaxial fatigue tests and crack paths for AISI 304L stainless steel
AISI 304L stainless steel specimens have been tested in fatigue. The tests were axial, torsional and in-phase biaxial, all of them under load control and R=-1. The S-N curves were built following the ASTM E739 standard and the method of maximum likelihood proposed by Bettinelli. The fatigue limits...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2014-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_34.pdf |
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| _version_ | 1841562872007622656 |
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| author | V. Chaves C. Madrigal A. Navarro |
| author_facet | V. Chaves C. Madrigal A. Navarro |
| author_sort | V. Chaves |
| collection | DOAJ |
| description | AISI 304L stainless steel specimens have been tested in fatigue. The tests were axial, torsional and
in-phase biaxial, all of them under load control and R=-1. The S-N curves were built following the ASTM E739
standard and the method of maximum likelihood proposed by Bettinelli. The fatigue limits of the biaxial tests
were represented in axes σ-τ. The elliptical quadrant, appropriate for ductile materials, and the elliptical arc,
appropriate for fragile materials, were included in the graph. The experimental values were better fitted with an
elliptical quadrant, despite the ratio between the pure torsion and tension fatigue limits, τFL/σFL, is 0.91, close to
1, which is a typical value for fragile materials. The crack direction along the surface has been analyzed by using
a microscope, with especial attention to the crack initiation zones. The crack direction during the Stage I has
been compared with theoretical models. |
| format | Article |
| id | doaj-art-b650c749a1864aa490ae15f06f76ece5 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2014-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-b650c749a1864aa490ae15f06f76ece52025-01-03T00:40:12ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-10-0183027328110.3221/IGF-ESIS.30.34Biaxial fatigue tests and crack paths for AISI 304L stainless steelV. Chaves0C. Madrigal1A. Navarro2University of Sevilla, Departamento de Ingeniería Mecánica y Fabricación. Escuela Técnica Superior de IngenieríaUniversity of Sevilla, Departamento de Ingeniería Mecánica y Fabricación. Escuela Técnica Superior de IngenieríaUniversity of Sevilla, Departamento de Ingeniería Mecánica y Fabricación. Escuela Técnica Superior de IngenieríaAISI 304L stainless steel specimens have been tested in fatigue. The tests were axial, torsional and in-phase biaxial, all of them under load control and R=-1. The S-N curves were built following the ASTM E739 standard and the method of maximum likelihood proposed by Bettinelli. The fatigue limits of the biaxial tests were represented in axes σ-τ. The elliptical quadrant, appropriate for ductile materials, and the elliptical arc, appropriate for fragile materials, were included in the graph. The experimental values were better fitted with an elliptical quadrant, despite the ratio between the pure torsion and tension fatigue limits, τFL/σFL, is 0.91, close to 1, which is a typical value for fragile materials. The crack direction along the surface has been analyzed by using a microscope, with especial attention to the crack initiation zones. The crack direction during the Stage I has been compared with theoretical models.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_34.pdfMultiaxial fatigueS-N curveCrack direction |
| spellingShingle | V. Chaves C. Madrigal A. Navarro Biaxial fatigue tests and crack paths for AISI 304L stainless steel Fracture and Structural Integrity Multiaxial fatigue S-N curve Crack direction |
| title | Biaxial fatigue tests and crack paths for AISI 304L stainless steel |
| title_full | Biaxial fatigue tests and crack paths for AISI 304L stainless steel |
| title_fullStr | Biaxial fatigue tests and crack paths for AISI 304L stainless steel |
| title_full_unstemmed | Biaxial fatigue tests and crack paths for AISI 304L stainless steel |
| title_short | Biaxial fatigue tests and crack paths for AISI 304L stainless steel |
| title_sort | biaxial fatigue tests and crack paths for aisi 304l stainless steel |
| topic | Multiaxial fatigue S-N curve Crack direction |
| url | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_34.pdf |
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