Shock Response of Several Plastic Bonded Explosives

Sutherland, Gerrit; Ashwell, K. D.; O'Connor, John H.; Baker, R. N.; Lemar, E. R.

doi:10.1063/1.2929847

Cited by 3 publications

(3 citation statements)

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“…This was validated by comparing CTH simulations to one-dimensional gas-gun results provided by Sutherland [6] and those from relatively low curved shock fronts produced in this study with 50.8 mm wide donors of the same explosive in a modified wedge test. The CTH calculations did not match many of the experimental scenarios involving higher shock curvature produced by 12.7, 10.7, and 5.7 mm wide donors.…”

Section: Discussionmentioning

confidence: 99%

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Effect of shockwave curvature on run distance observed with a modified wedge test

Lee¹,

Dorgan²,

Sutherland³

et al. 2012

AIP Conference Proceedings

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Abstract. The effect of wave curvature on shock initiation in PBXN-110 was investigated using a modified wedge test configuration. Various widths of PBXN-110 donor slabs were used to define the shockwave curvature introduced to wedge samples of the same explosive. The donor slabs were initiated with line-wave generators so that the shock from the donor would be the same shape, magnitude and duration across the entire input surface of the wedge. The shock parameters were varied for a given donor with PMMA spacers placed between the donor and the wedge sample. A high-speed electronic framing camera was used to observe where initiation occurred along the face of the wedge. Initiation always occurred at the center of the shock front instead of along the sides like that reported by others using a much smaller test format. Results were compared to CTH calculations to indicate if there were effects associated with highly curved shock fronts that could not be adequately predicted. The run distance predicted in CTH for a 50.8 mm wide donor slab (low curvature) compared favorably with experimental results. However, results from thinner donor slabs (higher curvature) indicate a more sensitive behavior than the simulations predicted.

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Section: Discussionmentioning

confidence: 99%

“…Embedded gauge results [6] from 1D tests on PBXN-110 were used to select the reactive flow model and hydrocode that was used to predict run distances for the MWT. The details of this selection are reported elsewhere [7].…”

Section: Modelingmentioning

confidence: 99%

Effect of shockwave curvature on run distance observed with a modified wedge test

Lee¹,

Dorgan²,

Sutherland³

et al. 2012

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Ignition and growth (I&G) models were investigated and compared to embedded gauge results [4] from a 1D copper flyer impact test on PBXN-110. The flyer from this shot had an impact velocity of 999 m/s.…”

Section: Pbxn-110 Selectionmentioning

confidence: 99%