Coating/substrate interaction in elastomer-steel bilayer armor

Coating/substrate interaction in elastomer-steel bilayer armor

The properties of steel substrates coated with soft polymers were characterized, in order to assess their connection to ballistic properties. An impact-induced viscoelastic phase change of the polymer effects large energy dissipation, while also spreading the force over a wider area, which reduces t...

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Bibliographic Details
Published in:Journal of composite materials Vol. 50; no. 20; pp. 2853 - 2859
Main Authors: Giller, CB, Gamache, RM, Wahl, KJ, Saab, AP, Roland, CM
Format: Journal Article
Language:English
Published: London, England SAGE Publications 01-08-2016
Subjects:
Coating
Coupling
Phase change
Polymers
Spreading
Steels
Strain measurement
Substrates
Ballistics
armor
phase transition
surface-hardening
elastomer coatings
Online Access:Get full text
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Summary:The properties of steel substrates coated with soft polymers were characterized, in order to assess their connection to ballistic properties. An impact-induced viscoelastic phase change of the polymer effects large energy dissipation, while also spreading the force over a wider area, which reduces the impact pressure. Both effects enhance the performance, as directly measured and seen from strain measurements on the substrate taken during ballistic tests. The contribution of the front-surface polymer to impact performance is increased for harder substrates, indicating a coupling of the layers related to impedance mismatching. Since this effect is very local, the phenomenon can be exploited by surface-hardening of the steel.
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ISSN:0021-9983
1530-793X
DOI:10.1177/0021998315613131