Very high cycle fatigue strength and crack growth of thin steel sheets
For basic observations or for industrial applications it is of interest to use flat specimens at very high frequency in the gigacycle regime. In this work, thin flat sheet, with 1.2 mm thickness of a complex phase ferrite-martensitic steels were considered for carrying out fatigue tests at high freq...
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Gruppo Italiano Frattura
2016-03-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_11.pdf |
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| author | Mohand Ouarabi Ruben Perez Mora Claude Bathias Thierry Palin-Luc |
| author_facet | Mohand Ouarabi Ruben Perez Mora Claude Bathias Thierry Palin-Luc |
| author_sort | Mohand Ouarabi |
| collection | DOAJ |
| description | For basic observations or for industrial applications it is of interest to use flat specimens at very high frequency in the gigacycle regime. In this work, thin flat sheet, with 1.2 mm thickness of a complex phase ferrite-martensitic steels were considered for carrying out fatigue tests at high frequency (20 kHz) up to the
gigacycle regime (>109 cycles). The crack initiation tests were carried out with water cooling, while the crack growth test were carried out in laboratory air at room temperature. All the tests were carried out under loading ratio R=-1. To do that, special designs of specimens were made and computed using FEM for defining the stress amplitude for endurance tests. Special attachments for specimens to the ultrasonic system’s horn were
enhanced. A particular FEM computing of the stress intensity range on crack growth specimens was carried out for determining the specimen dimensions and an equation that defines the stress intensity range as a function of the harmonic displacement amplitude, dynamic Young’s modulus, material density and crack length. Detailed procedures and fatigue results are presented in this paper. |
| format | Article |
| id | doaj-art-bcb622daa2fa4eef84fb5adecba901c8 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2016-03-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-bcb622daa2fa4eef84fb5adecba901c82025-01-02T23:01:05ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-03-01103611211810.3221/IGF-ESIS.36.11Very high cycle fatigue strength and crack growth of thin steel sheetsMohand Ouarabi0Ruben Perez Mora1Claude Bathias2Thierry Palin-Luc3Université Paris Ouest Nanterre La Defense,FranceUniversité Paris Ouest Nanterre La Defense,FranceUniversité Paris Ouest Nanterre La Defense,FranceUniversité de Bordeaux,FranceFor basic observations or for industrial applications it is of interest to use flat specimens at very high frequency in the gigacycle regime. In this work, thin flat sheet, with 1.2 mm thickness of a complex phase ferrite-martensitic steels were considered for carrying out fatigue tests at high frequency (20 kHz) up to the gigacycle regime (>109 cycles). The crack initiation tests were carried out with water cooling, while the crack growth test were carried out in laboratory air at room temperature. All the tests were carried out under loading ratio R=-1. To do that, special designs of specimens were made and computed using FEM for defining the stress amplitude for endurance tests. Special attachments for specimens to the ultrasonic system’s horn were enhanced. A particular FEM computing of the stress intensity range on crack growth specimens was carried out for determining the specimen dimensions and an equation that defines the stress intensity range as a function of the harmonic displacement amplitude, dynamic Young’s modulus, material density and crack length. Detailed procedures and fatigue results are presented in this paper.http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_11.pdfUltrasonic fatiguePlate steel fatigueFatigue resistanceFatigue crack growth |
| spellingShingle | Mohand Ouarabi Ruben Perez Mora Claude Bathias Thierry Palin-Luc Very high cycle fatigue strength and crack growth of thin steel sheets Fracture and Structural Integrity Ultrasonic fatigue Plate steel fatigue Fatigue resistance Fatigue crack growth |
| title | Very high cycle fatigue strength and crack growth of thin steel sheets |
| title_full | Very high cycle fatigue strength and crack growth of thin steel sheets |
| title_fullStr | Very high cycle fatigue strength and crack growth of thin steel sheets |
| title_full_unstemmed | Very high cycle fatigue strength and crack growth of thin steel sheets |
| title_short | Very high cycle fatigue strength and crack growth of thin steel sheets |
| title_sort | very high cycle fatigue strength and crack growth of thin steel sheets |
| topic | Ultrasonic fatigue Plate steel fatigue Fatigue resistance Fatigue crack growth |
| url | http://www.gruppofrattura.it/pdf/rivista/numero36/numero_36_art_11.pdf |
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