Skip to main content

On the response of ballistic soap to one-dimensional shock loading

Shepherd, C.J., Appleby-Thomas, G.J., Wilgeroth, J.M., Hazell, P.J., Allsop, D.F. (2011) On the response of ballistic soap to one-dimensional shock loading. International Journal of Impact Engineering, 38 (12). pp. 981-988. ISSN 0734-743X. (doi:10.1016/j.ijimpeng.2011.07.003) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:44973)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/j.ijimpeng.2011.07.003

Abstract

The effects of projectile penetration into soft tissue are often studied using the tissue simulant ballistic soap. Consequently, a full understanding of the high strain-rate response of ballistic soap is desirable. Using the plate-impact technique, key shock parameters have been measured for impacts in the range 81-968 m/s, allowing derivation of the Hugoniot equation-of-state for soap in the US-uP and P-uP planes. A linear Hugoniot relationship was found in the US-uP plane, with the general form US = 2.05 + 1.75uP (?0 = 1.107 g/cc). In P-uP space an apparent strengthening phenomenon was observed, with the Hugoniot trending above the hydrodynamic response at impact stresses greater than 1.2 GPa. Embedded lateral manganin stress gauges were employed to interrogate the evolution of lateral stress within the soap. A gradient in lateral stress, whose magnitude increased incrementally with impact stress, was apparent behind the shock for ?x > 1 GPa. This appeared to suggest a continuation of the previously highlighted strengthening mechanism. It is proposed that at higher values of ?x, increased compression of hydrocarbon chains acts to increase the material's resistance to shear, a phenomenon consistent with steric hindrance.

Item Type: Article
DOI/Identification number: 10.1016/j.ijimpeng.2011.07.003
Uncontrolled keywords: Shock response; Ballistic soap; Lateral gauge; Hugoniot; Plate-impact
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials engineering and construction
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Chris Shepherd
Date Deposited: 20 Nov 2014 10:37 UTC
Last Modified: 16 Feb 2021 12:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/44973 (The current URI for this page, for reference purposes)
Shepherd, C.J.: https://orcid.org/0000-0002-9294-4791
  • Depositors only (login required):