A new partially-infused fiber reinforced thermoplastic composite for improving impact resistance

Huang, Junheng; Tan, V.B.C.; Chew, Enquan; Chan, K.J.; Tay, T.E.; Guo, Licheng; Liu, J.L.

doi:10.1016/j.ijimpeng.2022.104293

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…Research on the impact properties and fracture toughness of thermoplastic composites has shown that TP composites have higher delamination resistance because the higher matrix toughness can retard crack propagation [11]. In addition, TP composites are fast to manufacture, have low moisture absorption, are weldable, are recyclable, and have unlimited shelf life and good stability in extreme environments [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Study on the Low-Velocity Impact Response and Damage Mechanisms of Thermoplastic Composites

Han,

Qi,

Yang

et al. 2024

Polymers

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A comparative experimental and numerical study of the impact behaviour of carbon-fiber-reinforced thermoplastic (TP) and thermoset (TS) composites has been carried out. On the one hand, low velocity impact (LVI) tests were performed on TP and TS composites with different lay-up sequences at different energy levels, and the damage modes and microscopic damage mechanisms after impact were investigated using macroscale inspection, C-scan inspection, and X-ray-computed tomography. The comparative results show that the initial damage valve force under LVI depends not only on the material, but also on the layup sequence. The initial valve force of the P2 soft layer with lower stiffness is about 11% lower than that of the P1 quasi-isotropic layer under the same material, while the initial valve force of thermoplastic composites is about 28% lower than that of thermoset composites under the same stacking order. Under the same stacking order and impact energy level, the damage area and depth of TP composites are smaller than those of TS composites; while under the same material and impact energy level, the indentation depth of P2 plies is greater than that of P1 plies, and the damage area of P2 plies is smaller than that of P1 plies, but the change of thermoplastic composites is not as obvious as that of thermoset composites. This indicates that TP composites have a higher initial damage threshold energy and impact resistance at the same lay-up order, while increasing the lay-up ratio of the same material by 45° improves the impact resistance of the structure. In addition, a damage model based on continuum damage mechanics (CDM) was developed to predict different damage modes of thermoplastic composites during low velocity impact, and the analytical results were compared with the experimental results. At an impact energy of 4.45 J/mm, the error of the initial damage valve force is 5.26% and the error of the maximum impact force is 4.36%. The simulated impact energy and impact velocity curves agree with the experimental results, indicating that the finite element model has good reliability.

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Section: Introductionmentioning

confidence: 99%

Study on the Low-Velocity Impact Response and Damage Mechanisms of Thermoplastic Composites

Han,

Qi,

Yang

et al. 2024

Polymers

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“…Khodadadi et al [ 4 ] investigated the high-speed impact response of neat Kevlar fabric, stiff Kevlar/epoxy composite and a soft Kevlar/rubber composite, and showed that the Kevlar fabric and soft Kevlar/rubber composite absorbed about 200% and 400% more energy than the stiff Kevlar/epoxy, respectively. Gopinath and coworkers [ 6 ] suggested that Kevlar composites with soft matrices have better impact resistance than Kevlar composites with rigid matrices because the Kevlar yarns are less constrained by the soft matrix during impact and are able to dissipate more impact energy. On the hand, for a stiff composite, only yarns close to the impact zone contribute to energy dissipation during impact [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Castor Oil-Based Polyurethane/S2 Glass/Aramid Hybrid Composites Manufactured by Vacuum Infusion

et al. 2022

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This study evaluates the hybridization effect of S2-glass/aramid on polyurethane (PU) composites produced by vacuum infusion. Different laminates were produced with similar thickness (around 2.5 mm), using, as reinforcement, only aramid fabrics (five layers, named as K5) or only S2-glass fabrics (eight layers, named as G8). Furthermore, hybridization was obtained by manufacturing symmetrical hybrid inter-ply laminates, with four S2-glass layers and two of aramid, (G2K)S and (KG2)S. The mechanical response of the laminates was evaluated in tensile, interlaminar shear strength, dynamical mechanical analysis and quasi-static indentation tests, and related to their morphological characteristics. The main results show that the pure glass composites presented less voids, but a higher density as well as higher tensile stiffness and strength. The aramid laminates showed a high capability for absorbing impact energy (ca. 30% higher than the pure glass laminates), and the hybrid laminates had intermediate properties. More importantly, this work shows the possibility of using a polyurethane matrix for vacuum infusion processing, effective even for aramid/S2-glass hybrid composites with thermoset polyurethane resin. This study is therefore promising for impact absorption in applications such as protective armor. The studied hybrid laminate may display a suitable set of properties and greater energy absorption capability and penetration resistance for impact applications.

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“…At present, plain grain structural materials have been widely used in bulletproof vests [ 14 , 15 , 16 ], bulletproof helmets, and other equipment, but there are problems such as weight, easy delamination, and poor in-plane shear performance [ 17 , 18 ]. With the development of weaving technology, the preparation technology of 3D structural materials is gradually maturing [ 19 , 20 , 21 ]. Compared with the plain weave structure, 3D structure fundamentally overcomes the weak point of traditional laminates such as low interlayer strength and easy delamination.…”

Section: Introductionmentioning

confidence: 99%

Research on Bending and Ballistic Performance of Three-Dimensional Ply-to-Ply Angle Interlock Kevlar/EP Armor Material

et al. 2022

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The three-dimensional (3D) shallow cross-bending composite material has many advantages in thickness and in-plane direction, such as high strength, high modulus, inter-layer shear strength, as well as large-area area bearing, energy absorption, etc., which has great application potential in the field of bulletproof armor. To prepare a protective material with both excellent bending performance and good ballistic performance, the effects of weft density and layering method on the bending performance and ballistic performance of three-dimensional ply-to-ply angle interlock (3DPPAI) Kevlar/EP armor materials were studied. The results showed that when the weft density of the material was 33 pieces/cm, its bending performance and ballistic resistance were the best. The 3DPPAI Kevlar/EP armor material prepared by orthogonal layup had more advantages in bending performance, and the unidirectional layup had better anti-ballistic performance. The research results will lay the foundation for structural optimization and engineering applications of such materials.

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A new partially-infused fiber reinforced thermoplastic composite for improving impact resistance

Cited by 8 publications

References 24 publications

Study on the Low-Velocity Impact Response and Damage Mechanisms of Thermoplastic Composites

Study on the Low-Velocity Impact Response and Damage Mechanisms of Thermoplastic Composites

Castor Oil-Based Polyurethane/S2 Glass/Aramid Hybrid Composites Manufactured by Vacuum Infusion

Research on Bending and Ballistic Performance of Three-Dimensional Ply-to-Ply Angle Interlock Kevlar/EP Armor Material

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