Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope
A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S‐N fatigue damage envelope, proposed by Pavlou. The adopted functional form of the fatigue damage...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 2022-05, Vol.45 (5), p.1480-1493 |
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| container_title | Fatigue & fracture of engineering materials & structures |
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| creator | Bjørheim, Fredrik Pavlou, Dimitrios G. Siriwardane, Sudath C. |
| description | A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S‐N fatigue damage envelope, proposed by Pavlou. The adopted functional form of the fatigue damage is a commonly accepted general form. In the present work, a stress function for the fatigue life exponent is derived with the aid of the S‐N curve only. In the proposed nonlinear model, no adjusting parameters are necessary for fatigue damage estimation. The fatigue life prediction of the derived model is compared with experimental results of various alloys and existing models. The comparison is made for C35, C45, Al‐2024‐T42, 15HM, A336 GR 5, and A387 GR22 for two‐stage loading high‐low and low‐high, and Al 6082‐T6 for multistage loading.
Highlights
Nonlinear damage function in light of the theory of the S‐N fatigue damage envelope
Validity of the model in both HCF and LCF
Verification of the new fatigue model with various metallic materials
Discussion of the model effectivenes in relation to the known fatigue damaging process |
| doi_str_mv | 10.1111/ffe.13680 |
| format | Article |
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Highlights
Nonlinear damage function in light of the theory of the S‐N fatigue damage envelope
Validity of the model in both HCF and LCF
Verification of the new fatigue model with various metallic materials
Discussion of the model effectivenes in relation to the known fatigue damaging process</description><identifier>ISSN: 8756-758X</identifier><identifier>EISSN: 1460-2695</identifier><identifier>DOI: 10.1111/ffe.13680</identifier><language>eng</language><publisher>Oxford: Wiley Subscription Services, Inc</publisher><subject>Damage assessment ; fatigue damage envelope ; Fatigue failure ; Fatigue life ; isodamage ; Life prediction ; nonlinear damage model ; Prediction models ; S N diagrams ; Stress functions ; variable amplitude loading</subject><ispartof>Fatigue & fracture of engineering materials & structures, 2022-05, Vol.45 (5), p.1480-1493</ispartof><rights>2022 The Authors. published by John Wiley & Sons Ltd.</rights><rights>2022. This article is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3320-b93d00a6219e3344eec42535df141fd4bfae48d5126b7465f6060cf19845c5cf3</citedby><cites>FETCH-LOGICAL-c3320-b93d00a6219e3344eec42535df141fd4bfae48d5126b7465f6060cf19845c5cf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fffe.13680$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fffe.13680$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Bjørheim, Fredrik</creatorcontrib><creatorcontrib>Pavlou, Dimitrios G.</creatorcontrib><creatorcontrib>Siriwardane, Sudath C.</creatorcontrib><title>Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope</title><title>Fatigue & fracture of engineering materials & structures</title><description>A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S‐N fatigue damage envelope, proposed by Pavlou. The adopted functional form of the fatigue damage is a commonly accepted general form. In the present work, a stress function for the fatigue life exponent is derived with the aid of the S‐N curve only. In the proposed nonlinear model, no adjusting parameters are necessary for fatigue damage estimation. The fatigue life prediction of the derived model is compared with experimental results of various alloys and existing models. The comparison is made for C35, C45, Al‐2024‐T42, 15HM, A336 GR 5, and A387 GR22 for two‐stage loading high‐low and low‐high, and Al 6082‐T6 for multistage loading.
Highlights
Nonlinear damage function in light of the theory of the S‐N fatigue damage envelope
Validity of the model in both HCF and LCF
Verification of the new fatigue model with various metallic materials
Discussion of the model effectivenes in relation to the known fatigue damaging process</description><subject>Damage assessment</subject><subject>fatigue damage envelope</subject><subject>Fatigue failure</subject><subject>Fatigue life</subject><subject>isodamage</subject><subject>Life prediction</subject><subject>nonlinear damage model</subject><subject>Prediction models</subject><subject>S N diagrams</subject><subject>Stress functions</subject><subject>variable amplitude loading</subject><issn>8756-758X</issn><issn>1460-2695</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNp1kM1Kw0AUhQdRsFYXvsGAKxdpZzI_SZZSWhVKXajgbpxk7tSUNBNn0kp3PoLP6JOYNuLOC5fLge_cAwehS0pGtJuxtTCiTKbkCA0olySKZSaO0SBNhIwSkb6corMQVoRQyRkboNeFq6uyBu2x1W253ACuSgu48WDKoi1djdfOQIVzHcDgTrZvsF_nd9jZg3r8_vxa_NmNXuslYKi3ULkGztGJ1VWAi987RM-z6dPkLpo_3N5PbuZRwVhMojxjhhAtY5oBY5wDFDwWTBhLObWG51YDT42gscwTLoWVRJLC0izlohCFZUN01f9tvHvfQGjVym183UWqWPKEcCKl7Kjrniq8C8GDVY0v19rvFCVqX6DqClSHAjt23LMfZQW7_0E1m017xw_W73JR</recordid><startdate>202205</startdate><enddate>202205</enddate><creator>Bjørheim, Fredrik</creator><creator>Pavlou, Dimitrios G.</creator><creator>Siriwardane, Sudath C.</creator><general>Wiley Subscription Services, Inc</general><scope>24P</scope><scope>WIN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>202205</creationdate><title>Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope</title><author>Bjørheim, Fredrik ; Pavlou, Dimitrios G. ; Siriwardane, Sudath C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3320-b93d00a6219e3344eec42535df141fd4bfae48d5126b7465f6060cf19845c5cf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Damage assessment</topic><topic>fatigue damage envelope</topic><topic>Fatigue failure</topic><topic>Fatigue life</topic><topic>isodamage</topic><topic>Life prediction</topic><topic>nonlinear damage model</topic><topic>Prediction models</topic><topic>S N diagrams</topic><topic>Stress functions</topic><topic>variable amplitude loading</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bjørheim, Fredrik</creatorcontrib><creatorcontrib>Pavlou, Dimitrios G.</creatorcontrib><creatorcontrib>Siriwardane, Sudath C.</creatorcontrib><collection>Wiley-Blackwell Open Access Titles</collection><collection>Wiley Free Content</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Fatigue & fracture of engineering materials & structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bjørheim, Fredrik</au><au>Pavlou, Dimitrios G.</au><au>Siriwardane, Sudath C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope</atitle><jtitle>Fatigue & fracture of engineering materials & structures</jtitle><date>2022-05</date><risdate>2022</risdate><volume>45</volume><issue>5</issue><spage>1480</spage><epage>1493</epage><pages>1480-1493</pages><issn>8756-758X</issn><eissn>1460-2695</eissn><abstract>A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S‐N fatigue damage envelope, proposed by Pavlou. The adopted functional form of the fatigue damage is a commonly accepted general form. In the present work, a stress function for the fatigue life exponent is derived with the aid of the S‐N curve only. In the proposed nonlinear model, no adjusting parameters are necessary for fatigue damage estimation. The fatigue life prediction of the derived model is compared with experimental results of various alloys and existing models. The comparison is made for C35, C45, Al‐2024‐T42, 15HM, A336 GR 5, and A387 GR22 for two‐stage loading high‐low and low‐high, and Al 6082‐T6 for multistage loading.
Highlights
Nonlinear damage function in light of the theory of the S‐N fatigue damage envelope
Validity of the model in both HCF and LCF
Verification of the new fatigue model with various metallic materials
Discussion of the model effectivenes in relation to the known fatigue damaging process</abstract><cop>Oxford</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/ffe.13680</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Fatigue & fracture of engineering materials & structures, 2022-05, Vol.45 (5), p.1480-1493 |
| issn | 8756-758X 1460-2695 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Damage assessment fatigue damage envelope Fatigue failure Fatigue life isodamage Life prediction nonlinear damage model Prediction models S N diagrams Stress functions variable amplitude loading |
| title | Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope |
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