The influence of hybridization on impact damage behavior and residual compression strength of intraply basalt/nylon hybrid composites

This study measured the compression after impact strength of IM7 carbon fiber laminates made from epoxy resins with various mode I and mode II toughness values to observe the effects of these toughness values on the resistance to damage formation and subsequent residual compression strength-carrying capabilities. A total of seven different epoxy resin systems were used ranging in approximate GI values of 245–665 J/m2 and approximate GII values of 840–2275 J/m2. The results for resistance to impact damage formation showed that there was a direct correlation between GII and the planar size of damage as measured by thermography. Subsequent residual compression strength testing suggested that GI had no influence on the measured values and most of the difference in compression strength was directly related to the size of damage. Thus, delamination growth assumed as an opening type of failure mechanism does not appear to be responsible for the loss of compression strength.

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The influence of long term water immersion ageing on impact damage behaviour and residual compression strength of glass fibre reinforced polymer (GFRP)

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2007.07.008 ◽

2008 ◽

Vol 29 (7) ◽

pp. 1300-1310 ◽

Cited By ~ 42

Author(s):

K. Berketis ◽

D. Tzetzis ◽

P.J. Hogg

Keyword(s):

Glass Fibre ◽

Compression Strength ◽

Impact Damage ◽

Water Immersion ◽

Reinforced Polymer ◽

Glass Fibre Reinforced Polymer ◽

Fibre Reinforced Polymer ◽

Glass Fibre Reinforced ◽

Residual Compression

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Evaluation of Impact Damage and Residual Compression Strength after Impact of Glass/Epoxy Laminate Composites for Lightweight Bogie Frame induced by Ballast-Flying Phenomena

Journal of the Korean society for railway ◽

10.7782/jksr.2012.15.2.109 ◽

2012 ◽

Vol 15 (2) ◽

pp. 109-115 ◽

Cited By ~ 3

Author(s):

Jun-Sung Goo ◽

Kwang-Bok Shin ◽

Jung-Suk Kim

Keyword(s):

Compression Strength ◽

Impact Damage ◽

Laminate Composites ◽

Bogie Frame ◽

Residual Compression

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Assessment of impact damage in carbon-carbon plates with correlation to residual compression strength after impact

10.1109/ultsym.1990.171502 ◽

2002 ◽

Cited By ~ 1

Author(s):

B.T. Smith ◽

Y.R. Yamaki

Keyword(s):

Compression Strength ◽

Impact Damage ◽

Residual Compression

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Mechanical Characterization and Impact Damage Assessment of Hybrid Three-Dimensional Five-Directional Composites

Polymers ◽

10.3390/polym11091395 ◽

2019 ◽

Vol 11 (9) ◽

pp. 1395 ◽

Cited By ~ 3

Author(s):

Liwei Wu ◽

Wei Wang ◽

Qian Jiang ◽

Chunjie Xiang ◽

Ching-Wen Lou

Keyword(s):

Carbon Fiber ◽

Impact Load ◽

Hybrid Composites ◽

Impact Damage ◽

Three Dimensional ◽

Low Velocity Impact ◽

Aramid Fibers ◽

Braided Composites ◽

Low Velocity ◽

Velocity Impact

The effects of braided architecture and co-braided hybrid structure on low-velocity response of carbon-aramid hybrid three-dimensional five-directional (3D5d) braided composites were experimentally investigated in this study. Low-velocity impact was conducted on two types of hybridization and one pure carbon fiber braided reinforced composites under three velocities. Damage morphologies after low-velocity impact were detected by microscopy and ultrasonic nondestructive testing. Interior damages of composites were highly dependent on yarn type and alignment. Impact damage tolerance was introduced to evaluate the ductility of hybrid composites. Maximum impact load and toughness changed with impact velocity and constituent materials of the composites. The composite with aramid fiber as axial yarn and carbon fiber as braiding yarn showed the best impact resistance due to the synergistic effect of both materials. Wavelet transform was applied in frequency and time domain analyses to reflect the failure mode and mechanism of hybrid 3D5d braided composites. Aramid fibers were used either as axial yarns or braiding yarns, aiding in the effective decrease in the level of initial damage. In particular, when used as axial yarns, aramid fibers effectively mitigate the level of damage during damage evolution.

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Falling Weight Impact Damage Characterisation of Flax and Flax Basalt Vinyl Ester Hybrid Composites

Polymers ◽

10.3390/polym12040806 ◽

2020 ◽

Vol 12 (4) ◽

pp. 806 ◽

Cited By ~ 3

Author(s):

Hom Nath Dhakal ◽

Elwan Le Méner ◽

Marc Feldner ◽

Chulin Jiang ◽

Zhongyi Zhang

Keyword(s):

Vinyl Ester ◽

Failure Modes ◽

Hybrid Composites ◽

Impact Damage ◽

Matrix Cracking ◽

Damage Mechanisms ◽

Pull Out ◽

Weight Impact ◽

Falling Weight ◽

The Impact

Understanding the damage mechanisms of composite materials requires detailed mapping of the failure behaviour using reliable techniques. This research focuses on an evaluation of the low-velocity falling weight impact damage behaviour of flax-basalt/vinyl ester (VE) hybrid composites. Incident impact energies under three different energy levels (50, 60, and 70 Joules) were employed to cause complete perforation in order to characterise different impact damage parameters, such as energy absorption characteristics, and damage modes and mechanisms. In addition, the water absorption behaviour of flax and flax basalt hybrid composites and its effects on the impact damage performance were also investigated. All the samples subjected to different incident energies were characterised using non-destructive techniques, such as scanning electron microscopy (SEM) and X-ray computed micro-tomography (πCT), to assess the damage mechanisms of studied flax/VE and flax/basalt/VE hybrid composites. The experimental results showed that the basalt hybrid system had a high impact energy and peak load compared to the flax/VE composite without hybridisation, indicating that a hybrid approach is a promising strategy for enhancing the toughness properties of natural fibre composites. The πCT and SEM images revealed that the failure modes observed for flax and flax basalt hybrid composites were a combination of matrix cracking, delamination, fibre breakage, and fibre pull out.

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Fatigue Behavior of Impacted Plain-Weave Glass/Epoxy Composites under Tensile Fatigue Loading

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.297-300.1291 ◽

2005 ◽

Vol 297-300 ◽

pp. 1291-1296 ◽

Cited By ~ 1

Author(s):

Ki Weon Kang ◽

Jung Kyu Kim ◽

Heung Seob Kim

Keyword(s):

Fatigue Life ◽

Impact Damage ◽

Fatigue Behavior ◽

Fatigue Loading ◽

Epoxy Composites ◽

Low Velocity Impact ◽

Low Velocity ◽

Damage Behavior ◽

Plain Weave ◽

The Impact

The goals of this paper are to identify the impact damage behavior of plain-weave E-glass/epoxy composites and predict the fatigue life of the composites with impact-induced damage under constant amplitude loading. To identify these behaviors, the low velocity impact and fatigue after impact tests are performed for glass/epoxy composites having two types of fiber orientations. The impact damage behavior is dependent on the fiber orientation of the composites. The fatigue life of the impacted composites can be identified through the prediction model, which was proposed on the carbon/epoxy laminates by authors regardless of fiber orientations.

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