TY - JOUR
T1 - A comparative study on the low velocity impact behavior of UD, woven, and hybrid UD/woven FRP composite laminates
AU - Ma, Binlin
AU - Cao, Xiaofei
AU - Feng, Yu
AU - Song, Yujian
AU - Yang, Fei
AU - Li, Ying
AU - Zhang, Deyue
AU - Wang, Yipeng
AU - He, Yuting
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2024/2/15
Y1 - 2024/2/15
N2 - This study is aimed at comparing the response and damage of unidirectional (UD), woven fabric (WF) and hybrid UD/WF fiber reinforced polymer (FRP) laminates subjected to low velocity impact. The unidirectional tape and/or woven fabric (plain weave) carbon/epoxy prepregs are laminated and hot-pressed to produce UD, WF and sandwich-like hybrid UD/WF specimens. Impact responses of specimens are determined through low velocity impact (LVI) tests with impact energies of 10 J, 17 J and 25 J. After the LVI tests, the damage of specimens is characterized and analyzed using a combination of visual inspection, ultrasonic phased-array inspection, micro-computed tomography (CT) inspection, cross-sectional microscopic observation, and thermal de-ply test. Also, the LVI damage mechanisms of the three types of specimens are quantitatively compared by using the inter fiber crack volume ratio, total delamination area and fiber fracture length. It is concluded that the fiber architecture plays an important role in determining low velocity impact behavior of composite laminates. Especially, for the sandwich-like hybrid UD/WF laminates whose surface is a WF layer and the core is a UD layer, the WF layer on the surface plays an important role in reducing matrix cracking, delamination and fiber fracture, thus improving its LVI resistance.
AB - This study is aimed at comparing the response and damage of unidirectional (UD), woven fabric (WF) and hybrid UD/WF fiber reinforced polymer (FRP) laminates subjected to low velocity impact. The unidirectional tape and/or woven fabric (plain weave) carbon/epoxy prepregs are laminated and hot-pressed to produce UD, WF and sandwich-like hybrid UD/WF specimens. Impact responses of specimens are determined through low velocity impact (LVI) tests with impact energies of 10 J, 17 J and 25 J. After the LVI tests, the damage of specimens is characterized and analyzed using a combination of visual inspection, ultrasonic phased-array inspection, micro-computed tomography (CT) inspection, cross-sectional microscopic observation, and thermal de-ply test. Also, the LVI damage mechanisms of the three types of specimens are quantitatively compared by using the inter fiber crack volume ratio, total delamination area and fiber fracture length. It is concluded that the fiber architecture plays an important role in determining low velocity impact behavior of composite laminates. Especially, for the sandwich-like hybrid UD/WF laminates whose surface is a WF layer and the core is a UD layer, the WF layer on the surface plays an important role in reducing matrix cracking, delamination and fiber fracture, thus improving its LVI resistance.
KW - Damage analysis
KW - FRP laminates
KW - Fiber architecture
KW - Impact response
KW - Low velocity impact
UR - http://www.scopus.com/inward/record.url?scp=85181140061&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2023.111133
DO - 10.1016/j.compositesb.2023.111133
M3 - Article
AN - SCOPUS:85181140061
SN - 1359-8368
VL - 271
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 111133
ER -