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Title: Lightweight armor system

Abstract

The disclosure provides a shock absorbing layer comprised of one or more shock absorbing cells, where a shock absorbing cell is comprised of a cell interior volume containing a plurality of hydrogel particles and a free volume, and where the cell interior volume is surrounded by a containing layer. The containing layer has a permeability such that the hydrogel particles when swollen remain at least partially within the cell interior volume when subjected to a design shock pressure wave, allowing for force relaxation through hydrogel compression response. Additionally, the permeability allows for the flow of exuded free water, further dissipating wave energy. In an embodiment, a plurality of shock absorbing cells is combined with a penetration resistant material to mitigate the transmitted shock wave generated by an elastic precursor wave in the penetration resistant material.

Inventors:
; ; ;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1082854
Patent Number(s):
8381632
Application Number:
13/022,065
Assignee:
The United States of America as represented by the Department of Energy (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F41 - WEAPONS F41H - ARMOUR
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Chu, Henry S, Langhorst, Benjamin R, Bakas, Michael P, and Thinnes, Gary L. Lightweight armor system. United States: N. p., 2013. Web.
Chu, Henry S, Langhorst, Benjamin R, Bakas, Michael P, & Thinnes, Gary L. Lightweight armor system. United States.
Chu, Henry S, Langhorst, Benjamin R, Bakas, Michael P, and Thinnes, Gary L. Tue . "Lightweight armor system". United States. https://www.osti.gov/servlets/purl/1082854.
@article{osti_1082854,
title = {Lightweight armor system},
author = {Chu, Henry S and Langhorst, Benjamin R and Bakas, Michael P and Thinnes, Gary L},
abstractNote = {The disclosure provides a shock absorbing layer comprised of one or more shock absorbing cells, where a shock absorbing cell is comprised of a cell interior volume containing a plurality of hydrogel particles and a free volume, and where the cell interior volume is surrounded by a containing layer. The containing layer has a permeability such that the hydrogel particles when swollen remain at least partially within the cell interior volume when subjected to a design shock pressure wave, allowing for force relaxation through hydrogel compression response. Additionally, the permeability allows for the flow of exuded free water, further dissipating wave energy. In an embodiment, a plurality of shock absorbing cells is combined with a penetration resistant material to mitigate the transmitted shock wave generated by an elastic precursor wave in the penetration resistant material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

Works referenced in this record:

Dynamic compressive properties and failure mechanism of glass fiber reinforced silica hydrogel
journal, January 2010


Experimental study and property analysis of seal-filling hydrogel material for hermetic wall in coal mine
journal, February 2010