Show simple item record

dc.contributor.authorRivers, G.
dc.contributor.authorCronin, Duane S.
dc.date.accessioned2022-02-02 21:23:42 (GMT)
dc.date.available2022-02-02 21:23:42 (GMT)
dc.date.issued2019-11
dc.identifier.urihttps://doi.org/10.1016/j.matdes.2019.108026
dc.identifier.urihttp://hdl.handle.net/10012/18037
dc.description.abstractTransparent armor laminates (TALs), manufactured from layers of soda-lime-silica float glass, thermoplastic polyurethane, and polycarbonate, are known to suffer unpredictable delamination in ambient-condition service, interfering with their transparency and reducing operational lifespan. The nature of the mechanisms leading to delamination are not well known, and believed to be driven by exposure to moisture, thermal cycling, and stresses induced by differing thermal expansion of the layers. Herein, small-scale coupons of TAL laminates were hygrothermally aged for a variety of durations and moisture exposure geometries, then thermally cycled to investigate the onset of delamination. As duration of aging was increased, the mode of failure changed from cohesive void formation at high temperature (85 °C), to interfacial crack during less-extreme thermal cycling (0 °C to 70 °C). The progression indicated that the barrier to nucleating delaminations reduced with progressing moisture exposure, leading to less-selective initiation and increasingly contiguous growth of the delaminations. In this study, for the first time, delaminations were successfully and consistently produced in glass-polycarbonate laminates, the delamination failure mode was correlated with the degree of moisture exposure, and both a theoretical basis to guide further studies and a methodology to assess the delamination resistance of current and future transparent armor designs are suggested.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesMaterials & Design;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectdelaminationen
dc.subjecttransparent armoren
dc.subjectlaminatesen
dc.subjectin-situen
dc.subjectPolyurethaneen
dc.subjecthygrothermal agingen
dc.titleInfluence of moisture and thermal cycling on delamination flaws in transparent armor materials: Thermoplastic polyurethane bonded glass-polycarbonate laminatesen
dc.typeArticleen
dcterms.bibliographicCitationRivers, G., & Cronin, D. (2019). Influence of moisture and thermal cycling on delamination flaws in transparent armor materials: Thermoplastic polyurethane bonded glass-polycarbonate laminates. Materials & Design, 182, 108026. https://doi.org/10.1016/j.matdes.2019.108026en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen
uws.typeOfResourceTexten
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International

UWSpace

University of Waterloo Library
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
519 888 4883

All items in UWSpace are protected by copyright, with all rights reserved.

DSpace software

Service outages