Observations of projectile penetration into a transparent soil

Document Type

Article

Publication Date

12-1-2015

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.

Identifier

84948101111 (Scopus)

Publication Title

Mechanics Research Communications

External Full Text Location

https://doi.org/10.1016/j.mechrescom.2015.08.008

ISSN

00936413

First Page

4

Last Page

11

Volume

70

Grant

DGE 0741714

Fund Ref

National Science Foundation

This document is currently not available here.

Share

COinS