Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness

This study presents an innovative approach for selecting high-strength materials for fatigue dimensioning parts, considering both fracture toughness and fatigue performance. Warm and hot forming processes enable the construction of high-strength parts above 1000 MPa with complex geometries, making t...

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Autores: Parareda Oriol, Sergi|||0000-0002-1401-6877, Frómeta Gutiérrez, David|||0000-0002-9446-4388, Casellas Padró, Daniel, Mateo García, Antonio Manuel|||0000-0001-8336-6128
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/390806
Acceso en línea:https://hdl.handle.net/2117/390806
https://dx.doi.org/10.3390/met13061117
Access Level:acceso abierto
Palabra clave:Materials--Fatigue
Fracture toughness
Fatigue
Chassis parts
High strength steel
Sheared edge
Warm forming steels
Materials--Fatiga
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
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spelling Understanding the fatigue notch sensitivity of high-strength steels through fracture toughnessParareda Oriol, Sergi|||0000-0002-1401-6877Frómeta Gutiérrez, David|||0000-0002-9446-4388Casellas Padró, DanielMateo García, Antonio Manuel|||0000-0001-8336-6128Materials--FatigueFracture toughnessFatigueChassis partsHigh strength steelSheared edgeWarm forming steelsMaterials--FatigaÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgiaThis study presents an innovative approach for selecting high-strength materials for fatigue dimensioning parts, considering both fracture toughness and fatigue performance. Warm and hot forming processes enable the construction of high-strength parts above 1000 MPa with complex geometries, making them suitable for lightweight chassis in automotive and freight applications. This research reveals that high-strength steels can experience up to a 40% reduction in fatigue performance due to manufacturing defects introduced during punching and trimming. Fracture toughness has been proposed as a good indicator of notch sensitivity, with a strong correlation of 0.83 between fracture toughness and fatigue notch sensitivity. Therefore, by combining fracture toughness measurements and fatigue resistance obtained through the rapid fatigue test, it becomes possible to quickly identify the most fatigue-resistant materials to deal with defects. Among the nine materials analysed, warm-formed steels show promising characteristics for lightweight chassis construction, with high fatigue resistance and fracture toughness exceeding the proposed fracture threshold of 250 kJ/m2.Peer ReviewedMultidisciplinary Digital Publishing Institute (MDPI)20232023-06-1420232023-07-13journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/390806https://dx.doi.org/10.3390/met13061117reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3908062026-05-27T15:37:01Z
dc.title.none.fl_str_mv Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
title Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
spellingShingle Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
Parareda Oriol, Sergi|||0000-0002-1401-6877
Materials--Fatigue
Fracture toughness
Fatigue
Chassis parts
High strength steel
Sheared edge
Warm forming steels
Materials--Fatiga
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
title_short Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
title_full Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
title_fullStr Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
title_full_unstemmed Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
title_sort Understanding the fatigue notch sensitivity of high-strength steels through fracture toughness
dc.creator.none.fl_str_mv Parareda Oriol, Sergi|||0000-0002-1401-6877
Frómeta Gutiérrez, David|||0000-0002-9446-4388
Casellas Padró, Daniel
Mateo García, Antonio Manuel|||0000-0001-8336-6128
author Parareda Oriol, Sergi|||0000-0002-1401-6877
author_facet Parareda Oriol, Sergi|||0000-0002-1401-6877
Frómeta Gutiérrez, David|||0000-0002-9446-4388
Casellas Padró, Daniel
Mateo García, Antonio Manuel|||0000-0001-8336-6128
author_role author
author2 Frómeta Gutiérrez, David|||0000-0002-9446-4388
Casellas Padró, Daniel
Mateo García, Antonio Manuel|||0000-0001-8336-6128
author2_role author
author
author
dc.subject.none.fl_str_mv Materials--Fatigue
Fracture toughness
Fatigue
Chassis parts
High strength steel
Sheared edge
Warm forming steels
Materials--Fatiga
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
topic Materials--Fatigue
Fracture toughness
Fatigue
Chassis parts
High strength steel
Sheared edge
Warm forming steels
Materials--Fatiga
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
description This study presents an innovative approach for selecting high-strength materials for fatigue dimensioning parts, considering both fracture toughness and fatigue performance. Warm and hot forming processes enable the construction of high-strength parts above 1000 MPa with complex geometries, making them suitable for lightweight chassis in automotive and freight applications. This research reveals that high-strength steels can experience up to a 40% reduction in fatigue performance due to manufacturing defects introduced during punching and trimming. Fracture toughness has been proposed as a good indicator of notch sensitivity, with a strong correlation of 0.83 between fracture toughness and fatigue notch sensitivity. Therefore, by combining fracture toughness measurements and fatigue resistance obtained through the rapid fatigue test, it becomes possible to quickly identify the most fatigue-resistant materials to deal with defects. Among the nine materials analysed, warm-formed steels show promising characteristics for lightweight chassis construction, with high fatigue resistance and fracture toughness exceeding the proposed fracture threshold of 250 kJ/m2.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-06-14
2023
2023-07-13
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/390806
https://dx.doi.org/10.3390/met13061117
url https://hdl.handle.net/2117/390806
https://dx.doi.org/10.3390/met13061117
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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