Journal ArticleDOI
Low velocity impact and compression after impact simulation of thin ply laminates
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TLDR
In this paper, a simulation of low velocity impact and compression after impact in thin ply fabric laminates is studied through numerical simulations in which special attention has been devoted towards the computational efficiency.Abstract:
Numerical simulations can help in the understanding of the damage sequence of polymer based composite laminates during an impact event, which is a difficult experimental task when dealing with a large number of plies. Low velocity impact and compression after impact in thin ply fabric laminates are studied through numerical simulations in which special attention has been devoted towards the computational efficiency. The impact results show the importance of delamination during the damage initiation, which takes place at few interfaces. After damage initiation, delamination and fiber breakage propagate until a last stage which is mainly governed by fiber breakage. Compression after impact shows a brittle behaviour with almost no damage propagation prior to failure. The numerical models indicate that matrix cracking effects can be assumed negligible for the studied thin ply laminates while delamination and especially the fiber constitutive law shape are important for accurate predictions.read more
Citations
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An experimental and numerical investigation on low-velocity impact damage and compression-after-impact behavior of composite laminates
TL;DR: In this article, the authors investigated the damage and failure mechanism of composite laminates under low-velocity impact and compression-after-impact (CAI) loading conditions by numerical and experimental methods.
Journal ArticleDOI
Thin-ply composite laminates: a review
TL;DR: In this article, the authors reviewed recently published research into fiber reinforced polymer matrix composites formed using thin-ply laminates and showed that composites with thin-plastic laminations are of interest to aerospace and other high-performance industries.
Journal ArticleDOI
Thin-ply polymer composite materials: A review
A. Arteiro,C. Furtado,C. Furtado,Giuseppe Catalanotti,Peter Linde,Pedro P. Camanho,Pedro P. Camanho +6 more
TL;DR: In this paper, the effect of ply thickness scaling on several aspects of the mechanical response of composite laminates is reviewed, and the current state-of-the-art and recent developments in manufacturing, design and application of thin plies on novel engineered composite Laminates are presented.
Journal ArticleDOI
Low-velocity impact behaviors of repaired CFRP laminates: Effect of impact location and external patch configurations
Yuliang Hou,Yuliang Hou,Ying Tie,Cheng Li,Thaneshan Sapanathan,Thaneshan Sapanathan,Mohamed Rachik +6 more
TL;DR: In this article, the effect of impact location and different external patch configurations on the low-velocity impact behaviors of repaired CFRP laminates was investigated and an optimization was provided to identify the important design parameter to perform external patch repair based on the simulation results.
Journal ArticleDOI
A phase field approach enhanced with a cohesive zone model for modeling delamination induced by matrix cracking
TL;DR: This work proposes a novel framework accounting for this interaction through the coupling of a nonlocal damage model based on the phase field approach for the intralaminar failure with a cohesive zone model for the interlaminar one to capture the delamination induced by matrix cracking failure scenario.
References
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Crack band theory for fracture of concrete
Zdeněk P. Bažant,Byung H. Oh +1 more
TL;DR: In this article, a fracture theory for a heterogenous aggregate material which exhibits a gradual strain-softening due to microcracking and contains aggregate pieces that are not necessarily small compared to structural dimensions is developed.
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Measurement of mixed-mode delamination fracture toughness of unidirectional glass/epoxy composites with mixed-mode bending apparatus
Malk Benzeggagh,M. Kenane +1 more
TL;DR: In this paper, the authors evaluated the initiation of cracking and delamination growth in a unidirectional glass/epoxy composite under mode I, mode ZZ, and mixed mode I + II static loading.
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Progressive Delamination Using Interface Elements
TL;DR: In this paper, a method for modelling progressive mixed-mode delamination in fiber composites is described, which is incorporated within the non-linear finite element method, and is based on the use of interface elements in conjunction with softening relationships between the stresses and the relative displacements.
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Fracture toughness of the tensile and compressive fibre failure modes in laminated composites
TL;DR: In this paper, the fracture toughness associated with fiber tensile failure and compressive fibre kinking in a T300/913 carbon-epoxy laminated composite are measured using compact tension and "compact compression" tests respectively.
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Constrained cracking in glass fibre-reinforced epoxy cross-ply laminates
TL;DR: In this paper, the authors tested 90° cross-ply glass-reinforced epoxy resins in tension parallel to the direction of reinforcement in the outer plies and found that at large inner-ply thicknesses the specimens showed uniform transverse cracking.