A Mechanism of Hot-spots Formation at the Crack Tip of Al-PTFE under Quasi-static Compression
dc.contributor.author | Feng, B. | |
dc.contributor.author | Li, Y. | |
dc.contributor.author | Hao, Hong | |
dc.contributor.author | Wang, H. | |
dc.contributor.author | Hao, Yifei | |
dc.contributor.author | Fang, X. | |
dc.date.accessioned | 2018-04-30T02:39:41Z | |
dc.date.available | 2018-04-30T02:39:41Z | |
dc.date.created | 2018-04-16T07:41:28Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Feng, B. and Li, Y. and Hao, H. and Wang, H. and Hao, Y. and Fang, X. 2017. A Mechanism of Hot-spots Formation at the Crack Tip of Al-PTFE under Quasi-static Compression. Propellants, Explosives, Pyrotechnics. 42 (12): pp. 1366-1372. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/66232 | |
dc.identifier.doi | 10.1002/prep.201700106 | |
dc.description.abstract |
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Generally, the Al-PTFE (polytetrafluoroethylene) is thought to be inert under quasi-static or static loads. However, it was found that Al-PTFE would initiate under quasi-static compression after a specific heat treatment procedure and the opening fracture plays a crucial role in the initiation. A unique micrographic fracture pattern which showed unstable crack propagation and a ductile-to-brittle transition was observed at openning cracks by SEM. Combining the observed microstructure with the stress distribution at the path of crack propagation derived from numerical simulation, a mechanism was proposed to explain the formation of “hot-spots” at the crack tip. The temperature rise at the crack tip was estimated to be at least 612 °C, which is high enough to ignite the Al-PTFE composite. | |
dc.title | A Mechanism of Hot-spots Formation at the Crack Tip of Al-PTFE under Quasi-static Compression | |
dc.type | Journal Article | |
dcterms.source.volume | 42 | |
dcterms.source.number | 12 | |
dcterms.source.startPage | 1366 | |
dcterms.source.endPage | 1372 | |
dcterms.source.issn | 0721-3115 | |
dcterms.source.title | Propellants, Explosives, Pyrotechnics | |
curtin.department | Department of Civil Engineering | |
curtin.accessStatus | Fulltext not available |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |