Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijimpeng.2021.103824
Title: Effects of spacing and ply blocking on the ballistic resistance of UHMWPE laminates
Authors: Haris, A 
Tan, VBC 
Keywords: Ultra-high molecular weight polyethylene
Cross-ply
Spacing
Multi-laminate
Ply blocking
Ballistic limit
Issue Date: 1-May-2021
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: Haris, A, Tan, VBC (2021-05-01). Effects of spacing and ply blocking on the ballistic resistance of UHMWPE laminates. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 151. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijimpeng.2021.103824
Abstract: It is commonly claimed that ultra-high molecular weight polyethylene (UHMWPE) laminates offer high energy absorption during projectile impact with a cross-ply configuration. In this study, we explored alternative configurations with the aim of achieving better ballistic resistance than that of the cross-ply architecture. The UHMWPE laminates were fabricated from Endumax® cross-ply SHIELD XF23 using a hot press machine and material properties were obtain from Endumax® unidirectional (UD) tape TA23 coupon specimens. A solid steel sphere was used as the projectile. It was found that thinner laminates have higher the specific ballistic limit suggesting that it is more effective to deploy multiple stacks of thin laminated panels spaced apart than to bond all the laminas to form a single thick laminate. Experiments confirmed that while the multiple laminate systems always outperformed a single laminate comprising the same number of laminas, it was also best not to space the laminates apart. When simply stacked without spacing, the multi-laminate arrangement significantly enhanced the ballistic performance (about 10% increase in ballistic limit over the single panel). Adjacent laminates in the multi-laminate system were then rotated 45o relative to each other and then bonded together to form a single laminate with multiple blocks of similarly oriented laminas. This ply block configuration also had higher ballistic limit than the single cross-ply laminate for thin laminates but showed no advantage for thick laminates.
Source Title: INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
URI: https://scholarbank.nus.edu.sg/handle/10635/197229
ISSN: 0734743X
18793509
DOI: 10.1016/j.ijimpeng.2021.103824
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Haris et al preprint IJIE UHMWPE.pdfSubmitted version1.63 MBAdobe PDF

OPEN

Post-printView/Download

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.