Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model
Fatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there has been efforts towards the use of the local stress-strain and similitude conce...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2017-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_9.pdf |
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| author | PJ. Huffman J. Ferreira J A F O. Correia A M P. De Jesu G. Lesiuk F. Berto A. Fernndez-Canteli G. Glinka |
| author_facet | PJ. Huffman J. Ferreira J A F O. Correia A M P. De Jesu G. Lesiuk F. Berto A. Fernndez-Canteli G. Glinka |
| author_sort | PJ. Huffman |
| collection | DOAJ |
| description | Fatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there has been efforts towards the use of the local stress-strain and similitude concepts to formulate fatigue crack growth rates. A new model has been developed which derives stress-life, strain-life and fatigue crack growth rates from strain energy density concepts. This new model has the advantage to predict an intrinsic stress ratio effect of the form sar=(samp)?(smax )(1-?), which is dependent on the cyclic stress-strain behaviour of the material. This new fatigue crack propagation model was proposed by Huffman based on Walkerlike strain-life relation. This model is applied to FCG data available for the P355NL1 pressure vessel steel. A comparison of the experimental results and the Huffman crack propagation model is made. |
| format | Article |
| id | doaj-art-9a51781528eb486eae08890d370df439 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2017-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-9a51781528eb486eae08890d370df4392025-01-03T00:39:14ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-10-011142748410.3221/IGF-ESIS.42.910.3221/IGF-ESIS.42.9Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density modelPJ. HuffmanJ. FerreiraJ A F O. CorreiaA M P. De JesuG. LesiukF. BertoA. Fernndez-CanteliG. GlinkaFatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there has been efforts towards the use of the local stress-strain and similitude concepts to formulate fatigue crack growth rates. A new model has been developed which derives stress-life, strain-life and fatigue crack growth rates from strain energy density concepts. This new model has the advantage to predict an intrinsic stress ratio effect of the form sar=(samp)?(smax )(1-?), which is dependent on the cyclic stress-strain behaviour of the material. This new fatigue crack propagation model was proposed by Huffman based on Walkerlike strain-life relation. This model is applied to FCG data available for the P355NL1 pressure vessel steel. A comparison of the experimental results and the Huffman crack propagation model is made.http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_9.pdfFatigue Crack GrowthStrain EnergyUnigrow ModelPressure Vessel Steel |
| spellingShingle | PJ. Huffman J. Ferreira J A F O. Correia A M P. De Jesu G. Lesiuk F. Berto A. Fernndez-Canteli G. Glinka Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model Fracture and Structural Integrity Fatigue Crack Growth Strain Energy Unigrow Model Pressure Vessel Steel |
| title | Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| title_full | Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| title_fullStr | Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| title_full_unstemmed | Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| title_short | Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| title_sort | fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model |
| topic | Fatigue Crack Growth Strain Energy Unigrow Model Pressure Vessel Steel |
| url | http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_9.pdf |
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