Modeling and damage repair of woven thermoplastic composites subjected to low velocity impact

Reyes, G.; Sharma, Uday

doi:10.1016/j.compstruct.2009.08.038

Cited by 71 publications

(43 citation statements)

References 20 publications

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“…Iannucci and Willows [36] presented an energy based damage mechanics model and interface modelling technique for woven carbon composites under high strain dynamic loading employing an explicit FE code. Reyes and Sharma [37] studied experimentally and numerically a low velocity impact damage behaviour of woven thermoplastic laminates under various levels of impact energies. A simple energy-balance model was used to predict the maximum impact force and deflection of the laminates.…”

Section: Types Of Impactmentioning

confidence: 99%

Palliatives for Low Velocity Impact Damage in Composite Laminates

Ali

Joshi

Sultan

2017

Advances in Materials Science and Engineering

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Fibre reinforced polymer laminated composites are susceptible to impact damage during manufacture, normal operation, maintenance, and/or other stages of their life cycle. Initiation and growth of such damage lead to dramatic loss in the structural integrity and strength of laminates. This damage is generally difficult to detect and repair. This makes it important to find a preventive solution. There has been abundance of research dealing with the impact damage evolution of composite laminates and methods to mitigate and alleviate the damage initiation and growth. This article presents a comprehensive review of different strategies dealing with development of new composite materials investigated by several research groups that can be used to mitigate the low velocity impact damage in laminated composites. Hybrid composites, composites with tough thermoplastic resins, modified matrices, surface modification of fibres, translaminar reinforcements, and interlaminar modifications such as interleaving, short fibre reinforcement, and particle based interlayer are discussed in this article. A critical evaluation of various techniques capable of enhancing impact performance of laminated composites and future directions in this research field are presented in this article.

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Section: Types Of Impactmentioning

confidence: 99%

Palliatives for Low Velocity Impact Damage in Composite Laminates

Ali

Joshi

Sultan

2017

Advances in Materials Science and Engineering

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“…Low velocity impacts are known to induce damage to the composite in the form of matrix cracking, delamination, debonding, and fiber breakage 1–10. A number of studies on the low velocity impact performance of thermoplastic‐matrix composites have been conducted but, in most cases, the composites were fully laminated into relatively rigid plates made of polyethylene terephthalate,2, 6 polypropylene,4, 8, 9 polyethylene,10–13 and PEEK3, 14 fiber reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Glass Fiber‐Reinforced Polyamide Engine Oil Pan Subjected to Localized Low Velocity Impact from Flying Projectiles

Mouti¹,

Westwood²,

Long³

et al. 2012

steel research int.

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This paper investigates low velocity impact involving a glass fiber‐reinforced polyamide engine oil pan as part of a complete new development of thermoplastic components. The assessment of the impact resistance has driven the need to employ LS DYNA for finite element modeling in order to benchmark and predict the strength and fracture behavior of stressed plastic parts. In order to develop a reliable predictive capability and to validate simulations, complete components were manufactured by injection molding techniques for the experimental samples. Low velocity impact investigations were carried out using a gas gun and a falling weight tester in order to simulate impact events to which the oil pan is subjected whilst in operational service. This was intended to point out damage tolerance and failure mechanisms likely to occur in the structure. The study results show the significant contribution of the design in terms of shock absorption. Specific oil pan design with protective ribbing combined with a superior material considerably improves the impact resistance. The paper provides results and discussions on experimental and finite element analysis investigations before concluding with some remarks.

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“…In cases without impact damage, a peak load relates to the maximum resistance provided by the specimen as an indication of its flexural stiffness [24]. The slope of F-d curves indicates the contact stiffness, while the area under the curve is the energy absorbed, which is increased with impact energy.…”

Section: Force-deflection Responsementioning

confidence: 99%

Dynamic bending behaviour of woven composites for sports products: Experiments and damage analysis

2015

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Citation: ULLAH, H., HARLAND, A.R. and SILBERSCHMIDT, V.V., 2015.Dynamic bending behaviour of woven composites for sports products: experiments and damage analysis. Materials and Design, 88, Additional Information:• This paper was accepted for publication in the journal Materi- CFRP laminates of various orientations were tested at loads increasing up to failure to determine their energyabsorbing capability. On-axis laminates demonstrated better strength and stiffness whereas off-axis laminates exhibited good energy-absorbing capability. However, for applications demanding strength, stiffness and energy absorption as in sports products, a combination of both types of plies, as in a quasi-isotropic layup, is an optimum choice. Micro-computed tomography (micro-CT) analysis of the tested specimens showed that matrix cracking, delamination and tow debonding were the dominant damage modes at the specimen's impact location, whereas fabric fracture occurred at the bending location. Further, a catastrophic brittle fracture was observed in the on-axis laminates whereas the off-axis laminates exhibited pseudo-ductile behaviour thanks to matrix cracking and fibre trellising before their failure at higher energies.

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Modeling and damage repair of woven thermoplastic composites subjected to low velocity impact

Cited by 71 publications

References 20 publications

Palliatives for Low Velocity Impact Damage in Composite Laminates

Palliatives for Low Velocity Impact Damage in Composite Laminates

Finite Element Analysis of Glass Fiber‐Reinforced Polyamide Engine Oil Pan Subjected to Localized Low Velocity Impact from Flying Projectiles

Dynamic bending behaviour of woven composites for sports products: Experiments and damage analysis

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