Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates
As the most widely used material in protective structures, a better understanding of the resistance of reinforced concrete (RC) to high-speed projectile striking is needed. It has been accepted that concrete material possesses limited impact resistance in virtue of its poor energy absorption capacit...
Saved in:
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/170033 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-170033 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1700332023-08-22T05:02:21Z Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates Tu, Huan Fung, Tat Ching Del Linz, Paolo Tan, Kang Hai School of Civil and Environmental Engineering Engineering::Civil engineering Projectile Impact Damage detection As the most widely used material in protective structures, a better understanding of the resistance of reinforced concrete (RC) to high-speed projectile striking is needed. It has been accepted that concrete material possesses limited impact resistance in virtue of its poor energy absorption capacity. To improve the performance of RC structures under impulsive loading, affixing externally-bonded Fiber Reinforced Polymer (FRP) sheets on structural elements is a practical method. Due to the emphasis of most existing literature on the penetration behavior of projectiles, the studies of impact-induced spalling damage on normal and FRP strengthened RC plates are not sufficient and in-depth. In this paper, the local response of un-strengthened and FRP strengthened RC plates under projectile impact is systematically investigated with experimental approaches. In consideration of the complexity of transient behavior as well as multiply parameters involved, empirical approaches based on dimensionless analysis are proposed to predict the diameter and depth of spalling craters on normal RC plates and strengthened ones with frontal CFRP layers, which fill current research gap and are potential tools for damage assessment and repair. The validity of the proposed approaches is verified by test results from the present and published studies. 2023-08-22T05:02:20Z 2023-08-22T05:02:20Z 2023 Journal Article Tu, H., Fung, T. C., Del Linz, P. & Tan, K. H. (2023). Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates. Composite Structures, 319, 117129-. https://dx.doi.org/10.1016/j.compstruct.2023.117129 0263-8223 https://hdl.handle.net/10356/170033 10.1016/j.compstruct.2023.117129 2-s2.0-85159575998 319 117129 en Composite Structures © 2023 Elsevier Ltd. All rights reserved. |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
language |
English |
topic |
Engineering::Civil engineering Projectile Impact Damage detection |
spellingShingle |
Engineering::Civil engineering Projectile Impact Damage detection Tu, Huan Fung, Tat Ching Del Linz, Paolo Tan, Kang Hai Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
description |
As the most widely used material in protective structures, a better understanding of the resistance of reinforced concrete (RC) to high-speed projectile striking is needed. It has been accepted that concrete material possesses limited impact resistance in virtue of its poor energy absorption capacity. To improve the performance of RC structures under impulsive loading, affixing externally-bonded Fiber Reinforced Polymer (FRP) sheets on structural elements is a practical method. Due to the emphasis of most existing literature on the penetration behavior of projectiles, the studies of impact-induced spalling damage on normal and FRP strengthened RC plates are not sufficient and in-depth. In this paper, the local response of un-strengthened and FRP strengthened RC plates under projectile impact is systematically investigated with experimental approaches. In consideration of the complexity of transient behavior as well as multiply parameters involved, empirical approaches based on dimensionless analysis are proposed to predict the diameter and depth of spalling craters on normal RC plates and strengthened ones with frontal CFRP layers, which fill current research gap and are potential tools for damage assessment and repair. The validity of the proposed approaches is verified by test results from the present and published studies. |
author2 |
School of Civil and Environmental Engineering |
author_facet |
School of Civil and Environmental Engineering Tu, Huan Fung, Tat Ching Del Linz, Paolo Tan, Kang Hai |
format |
Article |
author |
Tu, Huan Fung, Tat Ching Del Linz, Paolo Tan, Kang Hai |
author_sort |
Tu, Huan |
title |
Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
title_short |
Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
title_full |
Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
title_fullStr |
Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
title_full_unstemmed |
Projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened RC plates |
title_sort |
projectile impact-induced spalling damage on carbon fiber reinforced polymer strengthened rc plates |
publishDate |
2023 |
url |
https://hdl.handle.net/10356/170033 |
_version_ |
1779156767268143104 |