Observations of projectile penetration into a transparent soil

Ivan L. Guzman, Magued Iskander, Stephan Bless

Research output: Contribution to journalArticle

Abstract

In this study, a transparent sand surrogate was employed along with high-speed imagery to un-intrusively visualize the penetration of a spherical projectile into the center of a saturated granular target, representing angular sand, at speeds ranging between 60 and 150 m/s. The transparent sand was made by saturating an angular granular fused quartz waste product with a matched refractive index pore fluid made of sucrose. A distinct zone of opacity was observed traveling ahead of the projectile. The opacity zone appears circular during initial penetration and transitions into the shape of an elongated cone in shots with higher initial velocities. Some healing was also observed with time and some increase in transparency was observed. Some of the opacity is attributed to dilatancy of the granular fused quartz during penetration, and healing is attributed to flow of pore fluid into the dilated zone.

Original languageEnglish (US)
Pages (from-to)4-11
Number of pages8
JournalMechanics Research Communications
Volume70
DOIs
StatePublished - Dec 1 2015

Fingerprint

terminal ballistics
Opacity
Projectiles
opacity
sands
soils
Quartz
Sand
penetration
healing
Soils
projectiles
quartz
porosity
Fluids
sucrose
fluids
Sugar (sucrose)
imagery
Transparency

Keywords

  • Dilation
  • Granular materials
  • Penetration
  • Transparent soil

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Observations of projectile penetration into a transparent soil. / Guzman, Ivan L.; Iskander, Magued; Bless, Stephan.

In: Mechanics Research Communications, Vol. 70, 01.12.2015, p. 4-11.

Research output: Contribution to journalArticle

@article{9e9ce995024248b8a87469de8fec3686,
title = "Observations of projectile penetration into a transparent soil",
abstract = "In this study, a transparent sand surrogate was employed along with high-speed imagery to un-intrusively visualize the penetration of a spherical projectile into the center of a saturated granular target, representing angular sand, at speeds ranging between 60 and 150 m/s. The transparent sand was made by saturating an angular granular fused quartz waste product with a matched refractive index pore fluid made of sucrose. A distinct zone of opacity was observed traveling ahead of the projectile. The opacity zone appears circular during initial penetration and transitions into the shape of an elongated cone in shots with higher initial velocities. Some healing was also observed with time and some increase in transparency was observed. Some of the opacity is attributed to dilatancy of the granular fused quartz during penetration, and healing is attributed to flow of pore fluid into the dilated zone.",
keywords = "Dilation, Granular materials, Penetration, Transparent soil",
author = "Guzman, {Ivan L.} and Magued Iskander and Stephan Bless",
year = "2015",
month = "12",
day = "1",
doi = "10.1016/j.mechrescom.2015.08.008",
language = "English (US)",
volume = "70",
pages = "4--11",
journal = "Mechanics Research Communications",
issn = "0093-6413",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Observations of projectile penetration into a transparent soil

AU - Guzman, Ivan L.

AU - Iskander, Magued

AU - Bless, Stephan

PY - 2015/12/1

Y1 - 2015/12/1

N2 - In this study, a transparent sand surrogate was employed along with high-speed imagery to un-intrusively visualize the penetration of a spherical projectile into the center of a saturated granular target, representing angular sand, at speeds ranging between 60 and 150 m/s. The transparent sand was made by saturating an angular granular fused quartz waste product with a matched refractive index pore fluid made of sucrose. A distinct zone of opacity was observed traveling ahead of the projectile. The opacity zone appears circular during initial penetration and transitions into the shape of an elongated cone in shots with higher initial velocities. Some healing was also observed with time and some increase in transparency was observed. Some of the opacity is attributed to dilatancy of the granular fused quartz during penetration, and healing is attributed to flow of pore fluid into the dilated zone.

AB - In this study, a transparent sand surrogate was employed along with high-speed imagery to un-intrusively visualize the penetration of a spherical projectile into the center of a saturated granular target, representing angular sand, at speeds ranging between 60 and 150 m/s. The transparent sand was made by saturating an angular granular fused quartz waste product with a matched refractive index pore fluid made of sucrose. A distinct zone of opacity was observed traveling ahead of the projectile. The opacity zone appears circular during initial penetration and transitions into the shape of an elongated cone in shots with higher initial velocities. Some healing was also observed with time and some increase in transparency was observed. Some of the opacity is attributed to dilatancy of the granular fused quartz during penetration, and healing is attributed to flow of pore fluid into the dilated zone.

KW - Dilation

KW - Granular materials

KW - Penetration

KW - Transparent soil

UR - http://www.scopus.com/inward/record.url?scp=84948101111&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84948101111&partnerID=8YFLogxK

U2 - 10.1016/j.mechrescom.2015.08.008

DO - 10.1016/j.mechrescom.2015.08.008

M3 - Article

VL - 70

SP - 4

EP - 11

JO - Mechanics Research Communications

JF - Mechanics Research Communications

SN - 0093-6413

ER -