DC Field | Value | Language |
---|---|---|
dc.contributor.author | Paresi, Prudvi Reddy | ko |
dc.contributor.author | Lou, Yanshan | ko |
dc.contributor.author | Narayanan, Arunachalam | ko |
dc.contributor.author | Yoon, Jeong Whan | ko |
dc.date.accessioned | 2019-12-13T01:27:35Z | - |
dc.date.available | 2019-12-13T01:27:35Z | - |
dc.date.created | 2019-12-02 | - |
dc.date.created | 2019-12-02 | - |
dc.date.issued | 2019-11 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, v.20, no.SUPPL 1, pp.79 - 87 | - |
dc.identifier.issn | 1229-9138 | - |
dc.identifier.uri | http://hdl.handle.net/10203/268839 | - |
dc.description.abstract | Success of the numerical simulations depends on the accuracy of the material constitutive relations. Most of the ductile materials exhibit increased strain rate sensitivity at higher strain rates (> 10(3) s(-1)) compared to low and medium strain rates. Meanwhile, plastic deformation of any ductile material under high strain rate conditions results in heat generation due to plastic work. Hence, a reliable constitutive model should be able to predict the accurate thermo-mechanical response of the material over a wide range of strain rate loading conditions. In the present work, an enhanced constitutive model for high strain rate and elevated temperature is proposed. For calibration purpose, the stress-strain response of AA2024-T351 is studied under quasi-static and dynamic loading conditions using uniaxial compression and split Hopkinson compressive pressure bar (SHPB) respectively at various temperatures. A threshold strain rate value is identified and used to improve the prediction capabilities of the present model. Later, the proposed model is compared with Johnson-Cook (JC) and Khan-Huang-Liang (KHL) models using the different statistical parameters. This analysis revealed the improved stress-strain prediction capability of the proposed model compared to the others. | - |
dc.language | English | - |
dc.publisher | KOREAN SOC AUTOMOTIVE ENGINEERS-KSAE | - |
dc.title | Enhanced Constitutive Model for Aeronautic Aluminium Alloy (AA2024-T351) under High Strain Rates and Elevated Temperatures | - |
dc.type | Article | - |
dc.identifier.wosid | 000494822100010 | - |
dc.identifier.scopusid | 2-s2.0-85074818756 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | SUPPL 1 | - |
dc.citation.beginningpage | 79 | - |
dc.citation.endingpage | 87 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY | - |
dc.identifier.doi | 10.1007/s12239-019-0130-8 | - |
dc.identifier.kciid | ART002518596 | - |
dc.contributor.localauthor | Yoon, Jeong Whan | - |
dc.contributor.nonIdAuthor | Paresi, Prudvi Reddy | - |
dc.contributor.nonIdAuthor | Lou, Yanshan | - |
dc.contributor.nonIdAuthor | Narayanan, Arunachalam | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | AA2024-T351 alloy | - |
dc.subject.keywordAuthor | Strain rate sensitivity | - |
dc.subject.keywordAuthor | Constitutive model | - |
dc.subject.keywordAuthor | Thermo-mechanical response | - |
dc.subject.keywordAuthor | High speed compression tests | - |
dc.subject.keywordPlus | WIDE-RANGE | - |
dc.subject.keywordPlus | BEHAVIORS | - |
dc.subject.keywordPlus | METALS | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | COMPRESSION | - |
dc.subject.keywordPlus | FRACTURE | - |
dc.subject.keywordPlus | BCC | - |
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