Three-Dimensional Penetration Measurements Using Digital Speckle Photography

Prentice, H. J.; Grantham, S. G.; Proud, W. G.; Field, J. E.

doi:10.1063/1.1780477

Cited by 1 publication

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“…Future research using DSR should investigate the evolution of each mode of deformation with time for different projectile nose-shapes. More accurate information on the mechanical response of an ERA to impact could be obtained by M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT using stereoscopic DSR, as was done in our parallel study of the dynamic bulging of plates [15,[48][49][50] . …”

Section: Times After Impact: (A) 6 μS (B) 9 μS and (C) 19 μSmentioning

confidence: 99%

“…This comes about through changing the degree of bulging and hence the stress field within the explosive which can in turn change where zones of intense shear form. For this reason, we performed a parallel study [15,[48][49][50] into an experimental method of determining the dynamic response of thin metal plates to impact and comparing the results with model predictions. In the research reported in this paper, we report the response of small-scale layered targets containing a PBS.…”

Section: Why Study the Response Of Explosives To Impact?mentioning

confidence: 99%

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The use of digital speckle radiography to study the ballistic deformation of a polymer bonded sugar (an explosive simulant)

Prentice

Proud

Walley

et al. 2010

International Journal of Impact Engineering

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This paper reports an initial study into the benefits of determining two-dimensional flow fields for low velocity impact on a small-scale model of explosive reactive armour (ERA) using digital speckle radiography (DSR). The model system consisted of a polymer-bonded sugar (PBS) (otherwise known as a sugarmock) confined between two mild steel plates. The DSR technique relies upon creating a layer within the specimen that is seeded with lead particles. So although radiography itself is mechanically non-invasive, the lead layer needed may change the mechanical properties of the material. DSR revealed where regions of intense shear occurred in normal impact. These regions are likely to be where a polymer-bonded explosive (PBX) would initiate.

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Section: Times After Impact: (A) 6 μS (B) 9 μS and (C) 19 μSmentioning

confidence: 99%

Section: Why Study the Response Of Explosives To Impact?mentioning

confidence: 99%