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  • A series of gap-test experiments were conducted in accordance with the EMTAP Test 22a guidelines to characterize the stress output from a donor charge of ROWANEX 3601. Forty eight successful gap-tests were conducted at the University of Pardubice in addition to two supporting plate impact experiments performed at the Cavendish Laboratory, University of Cambridge. The experiments indicated that there are two principal release mechanisms, which produce the observed reduction in stress with increasing gap distance. The first is attenuation of the input wave, something which is expected during explosive loading due to the triangular nature of the loading pulse. The second is an interaction between the input wave and lateral release waves from the edges of the test sample at the measurement station. Attenuation of the input wave due to visco-elastic loss in the PMMA gap used is likely to be less significant than these other two release mechanisms. The data generated by this investigation forms a robust dataset that gives an accurate calibration for ROWANEX 3601 for users of the EMTAP 22a test procedure. In addition the data represent an excellent set problem for those developing and wishing to validate, computational models of similar physical phenomena.
  • A series of gap-test experiments were conducted in accordance with the EMTAP Test 22a guidelines to characterize the stress output from a donor charge of ROWANEX 3601. Forty eight successful gap-tests were conducted at the University of Pardubice in addition to two supporting plate impact experiments performed at the Cavendish Laboratory, University of Cambridge. The experiments indicated that there are two principal release mechanisms, which produce the observed reduction in stress with increasing gap distance. The first is attenuation of the input wave, something which is expected during explosive loading due to the triangular nature of the loading pulse. The second is an interaction between the input wave and lateral release waves from the edges of the test sample at the measurement station. Attenuation of the input wave due to visco-elastic loss in the PMMA gap used is likely to be less significant than these other two release mechanisms. The data generated by this investigation forms a robust dataset that gives an accurate calibration for ROWANEX 3601 for users of the EMTAP 22a test procedure. In addition the data represent an excellent set problem for those developing and wishing to validate, computational models of similar physical phenomena. (en)
Title
  • Recalibration of the large scale gap-test to a stress scale
  • Recalibration of the large scale gap-test to a stress scale (en)
skos:prefLabel
  • Recalibration of the large scale gap-test to a stress scale
  • Recalibration of the large scale gap-test to a stress scale (en)
skos:notation
  • RIV/00216275:25310/12:39895331!RIV13-MSM-25310___
http://linked.open...avai/predkladatel
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  • I
http://linked.open...iv/cisloPeriodika
  • 5
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  • 164306
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  • RIV/00216275:25310/12:39895331
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  • explosive safety; gap test (en)
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  • DE - Spolková republika Německo
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  • [1BAC9C9F941B]
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  • Propellants Explosives Pyrotechnics
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  • 37
http://linked.open...iv/tvurceVysledku
  • Pachmáň, Jiří
  • Majzlík, Jiří
  • Braithwaite, Christopher H.
  • Williamson, David M.
http://linked.open...ain/vavai/riv/wos
  • 000309597700015
issn
  • 0721-3115
number of pages
http://bibframe.org/vocab/doi
  • 10.1002/prep.201200006
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  • 25310
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