Synergetic effects of thin plies and aligned carbon nanotube interlaminar reinforcement in composite laminates

Kalfon‐Cohen, Estelle; Kopp, Reed; Furtado, Carolina; Ni, Xinchen; Arteiro, Albertino; Borstnar, G.; Mavrogordato, Mark; Sinclair, Ian; Spearing, S.M.; Camanho, P.P.; Wardle, Brian L.

doi:10.1016/j.compscitech.2018.01.007

Cited by 71 publications

(41 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This film exhibits the same continuous phase as epoxy resin. As shown by the exposed ordered carbon fibers, delamination occurs at a weaker interface and decreases the toughening effect [28].…”

Section: Resultsmentioning

confidence: 99%

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Chen

Jiang

et al. 2019

Molecules

View full text Add to dashboard Cite

The effects of thermoplastic polyimide (PI) and polypropylene (PP) fibers and areal density of toughened layer on interlaminar fracture toughness and impact performance of carbon fiber/epoxy (CF/EP) laminated composites were studied. Mode I interlaminar fracture toughness (GIC) was analyzed via double cantilever beam (DCB) tests. When comparing for the toughener type, PI played a positive role in enhancing the mode-I fracture toughness, while PP was not effective due to the less fiber bridge formed during composite curing. The toughening effects of areal density of PI were further investigated by end notched flexure (ENF) testing and low velocity impact testing to better understand the toughening mechanisms. The results revealed that the toughening effect reached its best effectiveness when the areal density of toughened layer was 30 g/m2. Compared with the control group, GIC and GIIC of CF/EP laminated composite were increased by 98.49% and 84.07%, and Fmax and Ee were enhanced by 92.38% and 299.08% under low velocity impact. There is no obvious delamination phenomenon on the surface of laminates after low velocity impact, indicating the improved interlaminar and impact performance of laminated composite.

show abstract

Section: Resultsmentioning

confidence: 99%

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Chen

Jiang

et al. 2019

Molecules

View full text Add to dashboard Cite

show abstract

“…However, the enhanced ILSS measured from UD coupons is not expected to have a major role on the ILSS of multi-directional laminates, since the effect of ply thickness on the inter-laminar stress distribution [7] is considered the dominant effect on the improved inter-laminar shear performance of multi-directional thin-ply laminates, overwhelming the micro-structural effects observed on UD laminates. For example, Kalfon-Cohen et al [16] tested blocked (thick baseline) and dispersed (thin baseline) laminates manufactured from the same thin-ply composite system, obtaining higher ILSS on the thin baseline. Since the same thin-ply composite system was used in both laminates, no micro-structural effects should be expected, and the higher ILSS solely attributed to the effect of ply thickness on the inter-laminar stress distribution.…”

Section: Discussionmentioning

confidence: 99%

“…5). Indirect observations also show that the transverse shear strength (S is T ) [16,[77][78][79][80] and the transverse compressive strength (Y is C ) [77,78,81] are in-situ properties too.…”

Section: Constraining Effects and In-situ Strengthsmentioning

confidence: 96%

Thin-ply polymer composite materials: A review

Arteiro

Furtado

Catalanotti

et al. 2020

Composites Part A: Applied Science and Manufacturing

View full text Add to dashboard Cite

The introduction of the spread-tow thin-ply technology enabled the development of composite plies as thin as 0.020 mm. The availability of composite plies with a broader thickness range makes the understanding of the effects of ply thickness more pertinent than ever, therefore, a comprehensive literature review is presented in this paper. The micro-structural effects of ply thickness and ply uniformity on the mechanical response of unidirectional laminae is described.

show abstract

“…However, the increased ply count in thin-ply laminates also increases the number of ply-ply interfaces, thereby increasing the number of relatively weak and delamination-prone interlaminar regions. [5] III. PROBLEM STATEMENT Composite fibres exhibit strength as per fibre / ply orientation, here investigation of those layer needs to be done to avoid catastrophic failure.…”

Section: Literature Surveymentioning

confidence: 99%

Layerwise Damage Investigation of Ply Orientation on Strength Characteristics of Carbon Fibre Composite

Karale¹

2019

IJRASET

View full text Add to dashboard Cite

Synthetic composites have higher strength to weight ratio and are extensively used in industrial applications. Most of the composites have orthotropic properties and their strength varies as per orientation. Carbon fibers are one of the synthetic fibres having extensively high tensile strength. Laminates having different ply orientations have different properties and strengths. Hence, to enhance strength properties, reducing layerwise damage becomes of up most important. It is not possible to investigate the layerwise damage of each ply separately by experimentation. This can be done by using ACP tool in ANSYS 19.2 software. In this project, two laminates having orientations as 0°-45°-0° and 0°-30°-60° are considered for analysis. Advance composite pre-post [ACP] tool from ANSYS software is used for simulation of these layers. From this analysis total deformation, equivalent stress and damage of each layer is determined. After getting layerwise damage, experimentation is done. Experimental tensile test is done on specimens above ply orientations to obtain force vs. deflection diagrams. Comparative analysis is made between simulation and experimental results. Results and conclusion is drawn. Experimental and simulation values differ by only 1%. This validates the simulation value of force reaction. Also from the result it can be seen that 0°-45°-0° laminate gives better results than that of 0°-30°-60° laminate. Hence, it can be concluded that Plate 1 has higher strength than Plate 2 i.e., 0°-45°-0° is better ply orientation than 0°-30°-60° ply orientation. Also it is observed that different ply orientations have different strengths.

show abstract

Synergetic effects of thin plies and aligned carbon nanotube interlaminar reinforcement in composite laminates

Cited by 71 publications

References 36 publications

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Thin-ply polymer composite materials: A review

Layerwise Damage Investigation of Ply Orientation on Strength Characteristics of Carbon Fibre Composite

Contact Info

Product

Resources

About