TY - JOUR
T1 - Low velocity impact response of 2D and 3D Kevlar/polypropylene composites
AU - Bandaru, Aswani Kumar
AU - Chavan, Vikrant V.
AU - Ahmad, Suhail
AU - Alagirusamy, R.
AU - Bhatnagar, Naresh
N1 - Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - In this study, low velocity impact (LVI) behaviors of composite laminates reinforced with fabrics of different architecture are investigated. Three kinds of fabric architecture, namely, two-dimensional plain woven (2D-P), three-dimensional orthogonal (3D-O) and three-dimensional angle interlock (3D-A), are prepared with Kevlar 29 (Kevlar) yarns. Composite laminates are manufactured with Kevlar fabrics and polypropylene (PP) resin. These composites are impact tested at 4 m/s and 6 m/s impact velocities. The post-impact response of the composites of different fabric architecture is studied. The results revealed that the impact resistance is mainly dependent on the in-plane stiffness of the laminates. The energy absorption ability is predominantly influenced by the existence of yarns in the thickness direction. The 3D composites absorbed 14-26% higher energy than the 2D laminates. Especially, 3D-A laminates exhibited a higher peak load (14.21-30.25%), more energy absorption (12.7-26.2%) and lower cone formation at the back of the target (25-39%) as compared to 3D-O and 2D-P composites.
AB - In this study, low velocity impact (LVI) behaviors of composite laminates reinforced with fabrics of different architecture are investigated. Three kinds of fabric architecture, namely, two-dimensional plain woven (2D-P), three-dimensional orthogonal (3D-O) and three-dimensional angle interlock (3D-A), are prepared with Kevlar 29 (Kevlar) yarns. Composite laminates are manufactured with Kevlar fabrics and polypropylene (PP) resin. These composites are impact tested at 4 m/s and 6 m/s impact velocities. The post-impact response of the composites of different fabric architecture is studied. The results revealed that the impact resistance is mainly dependent on the in-plane stiffness of the laminates. The energy absorption ability is predominantly influenced by the existence of yarns in the thickness direction. The 3D composites absorbed 14-26% higher energy than the 2D laminates. Especially, 3D-A laminates exhibited a higher peak load (14.21-30.25%), more energy absorption (12.7-26.2%) and lower cone formation at the back of the target (25-39%) as compared to 3D-O and 2D-P composites.
KW - 3D composites
KW - Damage
KW - Impact behavior
KW - Kevlar
KW - Polypropylene
UR - http://www.scopus.com/inward/record.url?scp=84960907284&partnerID=8YFLogxK
U2 - 10.1016/j.ijimpeng.2016.02.016
DO - 10.1016/j.ijimpeng.2016.02.016
M3 - Article
AN - SCOPUS:84960907284
SN - 0734-743X
VL - 93
SP - 136
EP - 143
JO - International Journal of Impact Engineering
JF - International Journal of Impact Engineering
ER -