scholarly journals Low-Velocity Impact Behavior of Interlayer/Intralayer Hybrid Composites Based on Carbon and Glass Non-Crimp Fabric

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2472 ◽  
Author(s):  
Chen Zhang ◽  
Yunfei Rao ◽  
Zhe Li ◽  
Wei Li
Keyword(s):  
Hybrid Composite ◽  
Composite Laminates ◽  
Hybrid Composites ◽  
Low Velocity Impact ◽  
Hybrid Structures ◽  
Impact Behavior ◽  
Absorbed Energy ◽  
Low Velocity ◽  
Velocity Impact ◽  
Impact Tests

Composites have gained wide use in structural applications; however, they are sensitive to impact damage. The use of hybrid composites is an effective way to overcome this deficiency. The effects of various hybrid structures of interlayer and intralayer warp-knitted fabrics with carbon and glass fibers on the low-velocity impact behavior of composite laminates were studied. Drop-weight impact tests were conducted on two types of interlayer, sandwich and intralayer hybrid composite laminates, which were compared with homogenous composite laminates. During low-velocity impact tests, the time histories of impact forces and absorbed energy by laminate were recorded. The failure modes were analyzed using the micro-CT (computed tomography) and C-scan techniques. The results revealed that the hybrid structure played an important role in peak force and the absorbed energy, and that the hybrid interface had an influence on damage modes, whereas the intralayer hybrid composite laminate damage was affected by the impact location. The intralayer hybrid laminate with C:G = 1:1 exhibited better impact resistance compared to the other hybrid structures.

scholarly journals Low velocity impact behavior of interlayer hybrid composite laminates with carbon/glass/basalt fibres

2019 ◽  
Vol 176 ◽  
pp. 107191 ◽  
Author(s):  
Dongdong Chen ◽  
Quantian Luo ◽  
Maozhou Meng ◽  
Qing Li ◽  
Guangyong Sun
Keyword(s):  
Hybrid Composite ◽  
Composite Laminates ◽  
Low Velocity Impact ◽  
Impact Behavior ◽  
Low Velocity ◽  
Velocity Impact

scholarly journals An Experimental Study on the Low Velocity Impact Behavior of Hybrid Epoxy Composites

2019 ◽  
Vol 57 (2) ◽  
pp. 179-190
Author(s):  
Marina Bunea ◽  
Iulian Gabriel Birsan ◽  
Adrian Circiumaru
Keyword(s):  
Hybrid Composites ◽  
Energy Levels ◽  
Epoxy Composites ◽  
Low Velocity Impact ◽  
Impact Behavior ◽  
Low Velocity ◽  
Impact Machine ◽  
Damage Resistance ◽  
Tomographic Images ◽  
Velocity Impact

The low velocity impact response of hybrid epoxy composites reinforced with plain weave fabrics, ply orientation at various angles and filled stratified matrix was analyzed in this study. The hybrid epoxy composites were subjected to impact tests at 45J and 90J of energy levels with drop weight impact machine. The damaged areas were investigated by visual inspection of impacted and non-impacted surfaces and by tomographic images. It was found that the replacement of certain carbon inner plies with glass ones and the modification of fiber orientation improved the damage resistance of the hybrid composites with aramid outer layers subjected to impact loading at 45J of energy level.

Experimental Study of Tensile Preloading Influence on the Mechanical Behaviour of Pseudo-Ductile Hybrid Composite under High-Velocity Impact

2021 ◽  
Vol 410 ◽  
pp. 642-648
Author(s):  
Nikita A. Olivenko ◽  
Oleg A. Kudryavtsev ◽  
Mikhail V. Zhikharev
Keyword(s):  
Experimental Study ◽  
Mechanical Behaviour ◽  
Hybrid Composite ◽  
High Velocity ◽  
Hybrid Composites ◽  
Fracture Pattern ◽  
Low Velocity Impact ◽  
High Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact

The hybridisation of fibre-reinforced plastics is one of the perspective technological methods that make it possible to reduce the sensitivity of polymer composites to stress concentration and increase their damage tolerance. In this case, hybridisation means a combination of different types of reinforcing fibres in one yarn, one layer or one package. In most published papers, the authors investigated the mechanical behaviour of hybrid fibre-reinforced plastic under static loading or low-velocity impact conditions only. At the same time, statically preloaded structures made of composite materials can also be subjected to high-velocity impact. Tensile or compressive preloading affects not only the amount of energy absorbed by the composite but also changes the deformation and fracture pattern. This paper presents the results of the experimental study of the mechanical behaviour of a woven carbon/aramid hybrid composite under tensile preloading and high-velocity impact. Pre-tensioned specimens of homogeneous and hybrid composites were subjected to a high-velocity impact by a steel spherical projectile with the velocities up to 900 m/s. The experimental results showed that the hybrid composite had the lowest sensitivity of the ballistic limit to the tensile preloading.

An experimental and numerical investigation on the low velocity impact response of thermoplastic hybrid composites

2017 ◽  
Vol 52 (7) ◽  
pp. 877-889 ◽  
Author(s):  
Aswani Kumar Bandaru ◽  
Shivdayal Patel ◽  
Suhail Ahmad ◽  
Naresh Bhatnagar
Keyword(s):  
Finite Element ◽  
Numerical Investigation ◽  
Energy Absorption ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Two Hybrid

This paper presented an experimental and numerical investigation on the low velocity impact response of thermoplastic hybrid composites reinforced with Kevlar/basalt fabrics. Two hybrid and one Kevlar homogeneous composite laminates were manufactured with polypropylene as a resin. In the hybrid composites, one hybrid composite (H-1) was manufactured with alternate stacking of four layers of basalt and four layers of Kevlar and the second hybrid composite (H-2) was manufactured with four Kevlar layers on front face and four basalt layers on back face. Low velocity impact tests were performed using a drop-weight impact equipment at three different energies (25 J, 50 J and 75 J). Among the two hybrid composites H-1 hybrid composite exhibited 15.58–20.79% and 13.47–20.47% improvement in the peak force and energy absorption, respectively, than the H-2 hybrid composite. The peak force and energy absorption of Kevlar homogeneous composite was also improved by 10.07–14.37% and 5.38–11.29%, respectively, due to hybridization. A three dimensional (3D) dynamic finite element software, Abaqus/Explicit, was implemented to simulate the experimental results of low velocity impact tests. A user-defined material subroutine (VUMAT) based on Chang-Chang linear-orthotropic damage model was implemented into the finite element code. The predictions from numerical simulation were found to be in good agreement with the experimental results.

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