Damage‐Tolerant Woven Glass Fiber Composites Developed Using Polyvinyl Butyral (PVB) Unsaturated Polyester (UP) Blends

Ali, Muhammad Faizan; Hussain, Muzzamal; Tariq, Asra; Ahmed, Hassan Iftekhar; Shahid, Salma; Saouab, Abdelghani; Nawab, Yasir

doi:10.1155/2022/9077788

Cited by 2 publications

(2 citation statements)

References 25 publications

(19 reference statements)

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“…PC resin is more brittle in nature than PVB resin, therefore it showed lower deflection and visible cracks. [40][41][42] While PVB resin is flexible and tough in nature, therefore the deflection is high, and the cracks are minor.…”

Section: Flexural Testmentioning

confidence: 99%

Impact of auxeticity on mechanical properties of3Dwoven auxetic reinforced thermoplastic composites

et al. 2022

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3D woven composites are currently used in high-tech applications due to their better mechanical properties than 2D laminated composites. To further enhance the mechanical performance of 3D woven composites, auxetic structures can be used as reinforcement. The auxetic structures showed better mechanical properties due to bidimensional energy dissipation capability. Orthogonal 3D woven structures showed inherent auxetic nature, however, the use of brittle thermoset resins in composites fully limits their auxeticity. To overcome this issue, three types of 3D woven auxetic structures (warp, weft, and bidirectional interlocks) were developed and used as reinforcement with thermoplastic resins (PC and PVB). Auxeticity of woven reinforcement, and tensile, flexural (3-point), and short beam shear (SBS) tests of composites were conducted. Auxeticity results revealed that the warp interlock structure showed the highest auxeticity, while the bidirectional interlock structure exhibited the least auxeticity due to the high number of intersections and crimp %. Furthermore, warp interlock composite structure showed 47%, 49.5%, and 37% higher tensile, flexural, and shear strength values, respectively than bidirectional interlock structure in warp direction with PC resin. The overall results showed that auxetic reinforcement improved the mechanical performance of 3D woven composites.

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Section: Flexural Testmentioning

confidence: 99%

Impact of auxeticity on mechanical properties of3Dwoven auxetic reinforced thermoplastic composites

et al. 2022

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“…They carried out torsion, delamination, compression, and ballistic tests, but focused on constructing and comparing mesoscale and continuum numerical models and comparing them with experimental results. PVB has also been used as a matrix in 3D woven jute yarn auxetic composites [ 30 ], combined with liquid crystal polyester and poly(ester-amide) matrix resins for Twaron™ ballistic aramid fabric [ 31 ], and again, blended into the composite matrix with an unsaturated polyester thermoset resin reinforced with woven glass fabric [ 32 ]. Thus, as far as we could find, PVB in ballistic composites was mainly used as an elastic additive to brittle thermosets to improve their impact resistance.…”

Section: Introductionmentioning

confidence: 99%

Damage Resistance of Kevlar® Fabric, UHMWPE, PVB Multilayers Subjected to Concentrated Drop-Weight Impact

Nael,

Dikin,

Admassu

et al. 2024

Polymers

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The impact resistance of layered polymer structures using polyvinyl butyral (PVB) in combination with Kevlar® fabric and ultra-high molecular weight polyethylene (UHMWPE) were fabricated and tested. Methods of wet impregnation and hot-press impregnation and consolidation of fabric with PVB and UHMWPE were used to manufacture multilayer constructs. All sandwich constructs were fixed to the surface of ballistic clay and subject to a free drop-weight test with a conical impactor having a small contact area. All tests were made at the same impact energy of 9.3 J and velocity of 2.85 m/s. The change in the resistance force was recorded using a piezoelectric force sensor at the time intervals of 40 μs. Using experimental force–time history, the change in the impactor’s velocity, the depth of impactor penetration, the energy transformation at various stages of impactor interaction with the sample, and other parameters were obtained. Three indicators were considered as the main criteria for the effectiveness of a sample’s resistance to impact: (1) minimum deformation, bulging, of the panel backside at the moment of impact, (2) minimum absorption of impact energy per areal density, and (3) minimal or, better yet, no destruction of structural integrity. Under the tested conditions, the rigid Kevlar–PVB–Kevlar sandwich at the frontside and relatively soft but flexible UHMWPE–Kevlar–UHMWPE layers in the middle helped to localize and absorb impact energy, while the backside Kevlar–PVB–Kevlar sandwich minimized local bulging providing the best overall performance. The front layer damage area was very shallow and less than two impactor tip diameters. The backside bulging was also less than in any other tested configurations.

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Damage‐Tolerant Woven Glass Fiber Composites Developed Using Polyvinyl Butyral (PVB) Unsaturated Polyester (UP) Blends

Cited by 2 publications

References 25 publications

Impact of auxeticity on mechanical properties of3Dwoven auxetic reinforced thermoplastic composites

Impact of auxeticity on mechanical properties of3Dwoven auxetic reinforced thermoplastic composites

Damage Resistance of Kevlar® Fabric, UHMWPE, PVB Multilayers Subjected to Concentrated Drop-Weight Impact

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