DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Chung-Hee | ko |
dc.contributor.author | Huh, Hoon | ko |
dc.contributor.author | Park, Jungsu | ko |
dc.date.accessioned | 2015-04-08T04:24:32Z | - |
dc.date.available | 2015-04-08T04:24:32Z | - |
dc.date.created | 2014-12-26 | - |
dc.date.created | 2014-12-26 | - |
dc.date.issued | 2015-02 | - |
dc.identifier.citation | JOURNAL OF COMPOSITE MATERIALS, v.49, no.4, pp.425 - 438 | - |
dc.identifier.issn | 0021-9983 | - |
dc.identifier.uri | http://hdl.handle.net/10203/195527 | - |
dc.description.abstract | This article is concerned with the effect of the strain rate on the strain hardening behavior of polymer-bonded explosives at a wide range of strain rates ranging from 0.0001s(-1) to 3870s(-1). Inert polymer-bonded explosive simulants are prepared as specialized particulate composites to acquire analogous mechanical characteristics to polymer-bonded explosives for safety reasons. Uniaxial compressive tests were conducted from quasi-static states to intermediate strain rates ranging from 0.0001s(-1) to 100s(-1) with cylindrical specimens using a dynamic material testing machine (INSTRON 8801) and a high-speed material testing machine. An experimental method was developed for uniaxial compressive tests at intermediate strain rates ranging from 10s(-1) to 100s(-1). Split Hopkinson pressure bar tests were performed at high strain rates ranging from 1250s(-1) to 3870s(-1). Deformation behavior was investigated using captured images from a high-speed camera. The strain hardening behavior of polymer-bonded explosive simulants was formulated as a function of the strain rate with the proposed rate-dependent hardening model based on the DSGZ model. The model is capable of representing the complicated strain rate effects on the strain hardening behavior for rate-sensitive materials with a second-order exponentially-increasing function of the strain rate sensitivity. The rate-dependent hardening model of polymer-bonded explosives can be readily applied to prediction of deformation modes of polymer-bonded explosives in a warhead that undergoes severe dynamic loads. | - |
dc.language | English | - |
dc.publisher | SAGE PUBLICATIONS LTD | - |
dc.subject | MECHANICAL-PROPERTIES | - |
dc.subject | STRESS | - |
dc.subject | TEMPERATURE | - |
dc.subject | BEHAVIOR | - |
dc.subject | SIMULANT | - |
dc.subject | FAILURE | - |
dc.title | Rate-dependent hardening model for polymer-bonded explosives with an HTPB polymer matrix considering a wide range of strain rates | - |
dc.type | Article | - |
dc.identifier.wosid | 000348852800004 | - |
dc.identifier.scopusid | 2-s2.0-84921323573 | - |
dc.type.rims | ART | - |
dc.citation.volume | 49 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 425 | - |
dc.citation.endingpage | 438 | - |
dc.citation.publicationname | JOURNAL OF COMPOSITE MATERIALS | - |
dc.identifier.doi | 10.1177/0021998314521057 | - |
dc.contributor.localauthor | Huh, Hoon | - |
dc.contributor.nonIdAuthor | Park, Jungsu | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Polymer-bonded explosive | - |
dc.subject.keywordAuthor | polymer-bonded explosive simulant | - |
dc.subject.keywordAuthor | split Hopkinson pressure bar test | - |
dc.subject.keywordAuthor | rate-dependent hardening model | - |
dc.subject.keywordAuthor | strain rate sensitivity | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | STRESS | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | SIMULANT | - |
dc.subject.keywordPlus | FAILURE | - |
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