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Fracture Resistance...
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Frómeta, D.Unit of Metallic and Ceramic Materials, Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08243, Manresa, Spain
(author)
Fracture Resistance of Advanced High-Strength Steel Sheets for Automotive Applications
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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2021-01-03
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Springer,2021
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:ltu-82415
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82415URI
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https://doi.org/10.1007/s11661-020-06119-yDOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Validerad;2021;Nivå 2;2021-01-28 (johcin);Finansiär: European Commission (800693 — CrashTough — RFCS-2017)
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The fracture resistance of different advanced high-strength steel (AHSS) sheets for automotive applications is investigated through conventional tensile tests, fracture toughness measurements, and hole expansion tests. Different fracture-related parameters, such as the true fracture strain (TFS), the true thickness strain (TTS), the fracture toughness at crack initiation (wie), the specific essential work of fracture (we), and the hole expansion ratio (HER), are assessed. The specific essential work of fracture (we) is shown to be a suitable parameter to evaluate the local formability and fracture resistance of AHSS. The results reveal that fracture toughness cannot be estimated from any of the parameters derived from tensile tests and show the importance of microstructural features on crack propagation resistance. Based on the relation fracture toughness-local formability, a new AHSS classification mapping accounting for global formability and cracking resistance is proposed. Furthermore, a physically motivated fracture criterion for edge-cracking prediction, based on thickness strain measurements in fatigue pre-cracked DENT specimens, is proposed.
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Lara, A.Unit of Metallic and Ceramic Materials, Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08243, Manresa, Spain
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Grifé, L.Unit of Metallic and Ceramic Materials, Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08243, Manresa, Spain
(author)
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Dieudonné, T.ArcelorMittal Maizières Research SA, Voie Romaine, BP30320, 57283, Maizières-les-Metz, France
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Dietsch, P.ArcelorMittal Maizières Research SA, Voie Romaine, BP30320, 57283, Maizières-les-Metz, France
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Rehrl, J.voestalpine Stahl GmbH, voestalpine-Straße 3, 4020, Linz, Austria
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Suppan, C.voestalpine Stahl GmbH, voestalpine-Straße 3, 4020, Linz, Austria
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Casellas, DanielLuleå tekniska universitet,Material- och solidmekanik,Unit of Metallic and Ceramic Materials, Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08243, Manresa, Spain(Swepub:ltu)dancas
(author)
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Calvo, J.Materials Science and Engineering Department, Universitat Politècnica de Catalunya, Eduard Maristany 16, 08019, Barcelona, Spain
(author)
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Unit of Metallic and Ceramic Materials, Eurecat, Centre Tecnològic de Catalunya, Plaça de la Ciència, 2, 08243, Manresa, SpainArcelorMittal Maizières Research SA, Voie Romaine, BP30320, 57283, Maizières-les-Metz, France
(creator_code:org_t)
Related titles
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In:Metallurgical and Materials Transactions. A: Springer52:2, s. 840-8561073-56231543-1940
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