Experimental study on the low-velocity impact response of inter-ply S2-glass/aramid woven fabric hybrid laminates

Rezasefat, Mohammad; González-Jiménez, Álvaro; Ma, Dayou; Vescovini, Alessandro; Lomazzi, Luca; Silva, Amanda Albertin Xavier da; Amico, Sandro Campos; Manes, Andrea

doi:10.1016/j.tws.2022.109458

Cited by 18 publications

(10 citation statements)

References 35 publications

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“…Perforation was observed for the 109.7 J impact ( Figure 8 a) and the GFRP laminate was unable to absorb all the impact energy. The failure modes were dominant fibre breakage in warp and weft material directions, delamination, and matrix cracks [ 14 , 35 ]. A sudden drop in the experimental force-time response was observed at the peak force due to the propagation of cracks from the rear of the specimen towards the impact side, producing through-thickness fibre cracks [ 46 ].…”

Section: Resultsmentioning

confidence: 99%

“…This section briefly describes the experimental data set used for verification of the developed numerical model. A detailed description of experimental testing and results can be found in a previous publication [ 35 ]. The composite laminate was manufactured with the vacuum infusion technique as described in [ 35 ] using satin-weave S2-glass fabrics (302 g/m 2 , 0.24 mm, 22 threads per cm) and AR260/AH260 epoxy resin system.…”

Section: Methodsmentioning

confidence: 99%

“…A detailed description of experimental testing and results can be found in a previous publication [ 35 ]. The composite laminate was manufactured with the vacuum infusion technique as described in [ 35 ] using satin-weave S2-glass fabrics (302 g/m 2 , 0.24 mm, 22 threads per cm) and AR260/AH260 epoxy resin system. The produced 16-layer laminate had an overall thickness of ≈4 mm and was cut into 150 mm × 100 mm specimens for low-velocity impact tests following ASTM D7136 standard [ 36 ].…”

Section: Methodsmentioning

confidence: 99%

“…The solid 3D elements (C3D8R type-8-node, linear brick, and reduced integration element) followed elastic constitutive behaviour with the GFRP properties compiled in Table 1 which were obtained using uniaxial tensile and in-plane shear tests [ 35 , 44 ]. The material properties for the interlaminar cohesive elements are also shown in Table 1 , whereas the properties for the intralaminar cohesive elements were discussed in the previous section.…”

Section: Methodsmentioning

confidence: 99%

“…The authors would like to thank A. A. X. da Silva for the cited experimental results published in [ 35 ].…”

Section: Acknowledgmentsmentioning

confidence: 99%

See 4 more Smart Citations

A Numerical Study on the Influence of Strain Rate in Finite-Discrete Element Simulation of the Perforation Behaviour of Woven Composites

et al. 2022

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Predicting the perforation limit of composite laminates is an important design aspect and is a complex task due to the multi-mode failure mechanism and complex material constitutive behaviour required. This requires high-fidelity numerical models for a better understanding of the physics of the perforation event. This work presents a numerical study on the perforation behaviour of a satin-weave S2-glass/epoxy composite subjected to low-velocity impact. A novel strain-rate-dependent finite-discrete element model (FDEM) is presented and validated by comparison with experimental data for impacts at several energies higher and lower than their perforation limit. The strain rate sensitivity was included in the model by developing a novel user-defined material model, which had a rate-dependent bilinear traction separation cohesive behaviour, implemented using a VUSDFLD subroutine in Abaqus/Explicit. The capability of the model in predicting the perforation limit of the composite was investigated by developing rate-sensitive and insensitive models. The results showed that taking the strain rate into account leads to more accurate predictions of the perforation limit and damage morphology of the laminate subjected to impacts at different energies. The experimental penetration threshold of 89 J was estimated as 79 J by the strain-rate-sensitive models, which was more accurate compared to 52 J predicted by the strain-rate-insensitive model. Additionally, the coupling between interlaminar and intralaminar failure modes in the models led to a more accurate prediction of the delamination area when considering the rate sensitivity.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The authors would like to thank A. A. X. da Silva for the cited experimental results published in [ 35 ].…”

Section: Acknowledgmentsmentioning

confidence: 99%

See 3 more Smart Citations

A Numerical Study on the Influence of Strain Rate in Finite-Discrete Element Simulation of the Perforation Behaviour of Woven Composites

et al. 2022

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Effect of hybridization on the mechanical performance and cost efficiency of carbon/flax bio‐hybrid composites

Masud,

Mubashar

2024

Polymer Composites

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This research investigates the effects of fiber hybridization on the mechanical performance of carbon/flax bio‐hybrid laminates. The study comprised of manufacturing and analyzing five distinct composite laminates, comprising pure carbon and various carbon/flax configurations with symmetric and asymmetric layups. The laminates were subjected to uniaxial tensile and low‐velocity impact testing at energy levels from 30 to 75 J. Quantitative and qualitative analyses were conducted to assess the damage/failure patterns to determine the changes due to hybridization and stacking sequence. The experimental results revealed that integrating flax layers into different bio‐hybrid configurations significantly influences their strength, stiffness and impact resistance. One of symmetric layups, having uniform distribution of flax layers throughout thickness, demonstrated the most enhanced performance. To facilitate comprehensive comparison, two indices were developed: Composite‐Performance Index (CPI) and Cost‐Effectiveness Index (CEI). These indices indicate that bio‐hybrid configurations, optimally designed with appropriate number of evenly distributed flax layers, can match or surpass performance of pure carbon layup. The study concludes that incorporating flax into carbon fiber laminates can yield substantial benefits in impact performance with slight compromise in tensile strength and stiffness. However, the overall cost efficiency of bio‐hybrid composites is superior, considering both tensile strength and impact performance.Highlights Effect of fiber hybridization on the mechanical performance of hybrid laminates was studied. Carbon/Flax composites exhibited slightly lower tensile strength compared to carbon‐based layup. Symmetric layups with evenly distributed flax layers showed enhanced impact performance. Cost efficiency of bio‐hybrid composites is superior for both tensile and impact performance.

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Investigation of the energy absorption behavior and damage mechanisms of aramid/carbon/jute fiber hybrid epoxy composites

Özsoy

2024

Polymer Composites

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Today, various fiber reinforcements are used in automotive, aerospace and defense industries. Many of these fibers are synthetic structures, which can cause problems such as environmental pollution and high manufacturing costs. Researchers have turned to the use of more environmental‐friendly and cost‐effective natural materials to minimize these problems. In this study energy absorption properties of the fiber laminate‐hybrid epoxy composites were investigated with dynamic loadings. Fiber type and hybridization effects were investigated under drop weight impact tests with 10, 20, 30 and 50 Joule impact energies. Besides, mechanical characteristics were examined via quasi‐static bending tests. In this context, double and triple fiber reinforced natural/synthetic and synthetic/synthetic hybrid composites were manufactured as sandwich type. Furthermore, it is also aimed an evaluation of using natural fibers in ballistic activities with this study. Fiber materials consist of woven type carbon, aramid and jute fibers. Hybrid composites were manufactured with the aim of providing mechanical optimization between the fibers and enabling the fiber layers to absorb more impact energy. In addition, performance evaluation was made by comparing natural/synthetic reinforced hybrid composites with full synthetic hybrid composites. The results show that significant improvements were achieved in bending and impact resistance of the composites by using jute fibers to the inner layers.Highlights Drop weight impact tests were carried out to determine the energy absorption behavior of the hybrid composites. Fiber type is effective in the mechanical behavior of the composite materials. Natural hybrid composites show well enough mechanical properties as well as low cost.

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Experimental study on the low-velocity impact response of inter-ply S2-glass/aramid woven fabric hybrid laminates

Cited by 18 publications

References 35 publications

A Numerical Study on the Influence of Strain Rate in Finite-Discrete Element Simulation of the Perforation Behaviour of Woven Composites

A Numerical Study on the Influence of Strain Rate in Finite-Discrete Element Simulation of the Perforation Behaviour of Woven Composites

Effect of hybridization on the mechanical performance and cost efficiency of carbon/flax bio‐hybrid composites

Investigation of the energy absorption behavior and damage mechanisms of aramid/carbon/jute fiber hybrid epoxy composites

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