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Role of pre-stressing on anti-penetration properties for Kevlar/Epoxy composite plates

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dc.contributor.author Ehsan Sabah Al-Ameen
dc.contributor.author Muhanad Nazar Mustafa Al-Sabbagh
dc.contributor.author Ahmed Ali Farhan Ogaili
dc.contributor.author Ali Kurji Hassan
dc.date.accessioned 2025-07-02T08:34:36Z
dc.date.available 2025-07-02T08:34:36Z
dc.date.issued 2022-10
dc.description.abstract Bulletproof vest capability improvement is considered an important issue, especially for vests made from composite materials. Composite materials consisting of Kevlar 29/Epoxy at different volume fractions of 30, 40, and 60% were made to produce the test samples used in this work. These samples consisted of two plates; the plates were gathered within a frame, making a gap of 10 mm between them. Two sets of test samples were used. The first set consisted of two plates in their normal state (set A). In contrast, the second set (set B) was exposed to bending load generating pre-bending stress in the plates before the ballistic test. A 9 mm handgun was used to shoot the bullets. Chronographs were used to detect the projectiles' speed before and after hitting the samples. The samples were labeled according to the fiber volume fraction (A30 , A40 , A60 , B30 , B40 , and B60). Each sample was exposed to three successive shots. The results showed that B30 decreases the final velocity of the projectile by 45% compared to set A30 when the plates were loaded with 120 MPa stress. Increasing the stress value in sample B30 from 50 MPa to 120 MPa causes an increase in the sample's absorbed energy value of about 47%, 22%, and 1% for first, second, and third shots, respectively. A similar pattern of results has been obtained for other volume fractions.
dc.identifier.uri https://ijneam.unimap.edu.my/
dc.identifier.uri https://ijneam.unimap.edu.my/images/PDF/ijneam%20oct%202022%20pdf/IJNEAM2022034_Final_pr_Verified.pdf
dc.identifier.uri https://hdl.handle.net/20.500.14170/14049
dc.language.iso en
dc.publisher Universiti Malaysia Perlis (UniMAP)
dc.relation.ispartof International Journal of Nanoelectronics and Materials (IJNeaM)
dc.relation.issn 1985-5761
dc.subject Kevlar
dc.subject Epoxy
dc.subject Composite materials
dc.subject Ballistic test
dc.subject Bulletproof vest
dc.title Role of pre-stressing on anti-penetration properties for Kevlar/Epoxy composite plates
dc.type Resource Types::text::journal::journal article
dspace.entity.type Publication
oaire.citation.endPage 302
oaire.citation.issue 4
oaire.citation.startPage 293
oaire.citation.volume 15
oairecerif.author.affiliation Mustansiriyah University
oairecerif.author.affiliation Mustansiriyah University
oairecerif.author.affiliation Mustansiriyah University
oairecerif.author.affiliation Mustansiriyah University
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