Experimental investigations on the implosion characteristics of thin cylindrical aluminium-alloy tubes

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dc.contributor.authorMuttaqie, Teguhko
dc.contributor.authorPark, Sang Hyunko
dc.contributor.authorSohn, Jung Minko
dc.contributor.authorCho, Sang-Raiko
dc.contributor.authorNho, In Sikko
dc.contributor.authorHan, Soonhungko
dc.contributor.authorLee, Phill-Seungko
dc.contributor.authorCho, Yoon Sikko
dc.date.accessioned2020-09-18T03:58:17Z-
dc.date.available2020-09-18T03:58:17Z-
dc.date.created2020-06-25-
dc.date.created2020-06-25-
dc.date.issued2020-09-
dc.identifier.citationINTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, v.200, pp.64 - 82-
dc.identifier.issn0020-7683-
dc.identifier.urihttp://hdl.handle.net/10203/276069-
dc.description.abstractExperimental studies are conducted to investigate the implosion characteristics of thin cylindrical aluminium-alloy tubes. The effects of various parameters that generate different responses on the implosion behaviours are investigated. Aluminium-alloy tubes are fabricated from a 6061-T6 material and designed in the range of 2.5–6.7 length-to-diameter ratios; wall thickness-to-diameter ratios are varied from 55 to 69. The geometric imperfection parameters, defined as the initial ovality and thickness unevenness, are considered. Two different pressurising media, i.e., water only and the combination of water and nitrogen gas are employed. In addition small- and medium-sized of pressure chamber are utilised to clarify the pressure drop after the ultimate strength reached. Furthermore, non-linear finite element analyses, benchmarked for quantitative validation and comparison of the imploded tubes, are conducted. The numerical benchmark quantities are initial ovality, thickness unevenness, and air-backed fluid cavity parameters. The results of these experiments indicated that the effects of combined water and nitrogen can reproduce a constant pressure environment similar as actual undersea conditions, but the combined pressuring media can reduce the pressuring rate.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.titleExperimental investigations on the implosion characteristics of thin cylindrical aluminium-alloy tubes-
dc.typeArticle-
dc.identifier.wosid000562768800005-
dc.identifier.scopusid2-s2.0-85085602187-
dc.type.rimsART-
dc.citation.volume200-
dc.citation.beginningpage64-
dc.citation.endingpage82-
dc.citation.publicationnameINTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES-
dc.identifier.doi10.1016/j.ijsolstr.2020.05.008-
dc.contributor.localauthorHan, Soonhung-
dc.contributor.localauthorLee, Phill-Seung-
dc.contributor.nonIdAuthorMuttaqie, Teguh-
dc.contributor.nonIdAuthorPark, Sang Hyun-
dc.contributor.nonIdAuthorSohn, Jung Min-
dc.contributor.nonIdAuthorCho, Sang-Rai-
dc.contributor.nonIdAuthorNho, In Sik-
dc.contributor.nonIdAuthorCho, Yoon Sik-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorImplosion-
dc.subject.keywordAuthorHydrostatic pressure test-
dc.subject.keywordAuthorCollapse pressure-
dc.subject.keywordAuthorPressurising rate-
dc.subject.keywordAuthorAluminium-alloy 6061-T6-
dc.subject.keywordPlusUNDERWATER IMPLOSION-
dc.subject.keywordPlusSHELLS-
dc.subject.keywordPlusENERGY-
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