Drop-weight impact behaviors of 3-D angle interlock woven composites after thermal oxidative aging

Wang, Mingling; Cao, Mengyu; Wang, Hailou; Siddique, Amna; Gu, Bohong; Sun, Bin

doi:10.1016/j.compstruct.2017.01.046

Cited by 31 publications

(11 citation statements)

References 35 publications

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“…They concluded that by changing the stacking sequence, interlaminar fracture can be suppressed or delayed by changing the load "interlaminar stresses" from tensile to compressive between the plies. For 3D woven composites [15,18], the through thickness reinforcement was found to increase the delamination resistance due to impact as well as energy absorption compared to their 2D counterparts. Besides, by changing the properties of the through-thickness yarns, the performance can be significantly improved.…”

Section: Introductionmentioning

confidence: 94%

Compression after multiple low velocity impacts of NCF, 2D and 3D woven composites

Saleh

El‐Dessouky

Freitas

et al. 2019

Composites Part A: Applied Science and Manufacturing

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This paper investigates the effect of the fabric architecture and the z-binding yarns on the compression after multiple impacts behavior of composites. Four fiber architectures are investigated: non-crimp fabric (NCF), 2D plain weave (2D-PW), 3D orthogonal plain (ORT-PW) and twill (ORT-TW) weave. The specimens were subjected to single and multiple low-velocity impacts at different locations with the same energy level (15 J). Non-destructive techniques including ultrasonic C-scanning, X-ray CT and Digital Image Correlation (DIC) are employed to quantitatively analyze and capture the Barely Visible Impact Damage (BVID) induced in the specimens. Although the absorbed energy was approximately the same, damage was the least in 3D woven architectures. In the case of compression after impact, 3D woven composites demonstrated a progressive damage behavior with the highest residual strength (~92%) while 2D plain weave and NCF specimens showed suddenly catastrophic damage and the residual strength of~65% and~55% respectively.

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Section: Introductionmentioning

confidence: 94%

Compression after multiple low velocity impacts of NCF, 2D and 3D woven composites

Saleh

El‐Dessouky

Freitas

et al. 2019

Composites Part A: Applied Science and Manufacturing

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“…The results revealed that the oxidative layer has little effect on the mechanical response of aged composites and the properties of the aged matrix can be treated homogeneously. Apart from the oxidized layer, the micro-cracks between fiber/matrix interface were widely observed in aged samples (Marouani et al., 2012; Mlyniec et al., 2014; Wang et al., 2017; Zhang et al., 2016). The micro-cracks provide additional paths for oxygen diffusion, thus accelerating the degradation rate.…”

Section: Introductionmentioning

confidence: 99%

Low-velocity impact and residual flexural behaviors of 2.5-D woven composite under accelerated thermal ageing: Experiment and numerical modelling

Cao

2019

International Journal of Damage Mechanics

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This paper aims to investigate the thermal ageing effect on the impact and post-impact behaviors of 2.5-D woven composites. A combined experimental and numerical study is carried out over a range of impact energies with the subsequent residual flexural tests on both aged (in the air for 32 days at 180℃) and pristine samples. Low-velocity impact tests are performed to assess the degradation of impact-resistant ability in terms of energy absorption mechanism and failure modes. Subsequently, three-point bending tests are conducted to determine the post-impact behaviors with respect to strain concentration, stress transfer and damage evolution process. The strain fields in the finite element model are compared with experimental results obtained by the DIC method. A larger strain concentration area could be found at higher energy levels and longer ageing time. Extended impact damage, such as fiber breakage and delamination, plays an important role in load transfer process in post-impact behavior, thus leading to the decrease of residual stress in aged samples.

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“…However, there is a limited work to evaluate mechanisms which depict reinforcement structural effects on crack initiation and evolution process. 3D angle-interlock reinforced composites have vast potential for engineering applications due to special layer by layer interlocked structure [10][11][12][13], nevertheless its toughness properties has not been studied yet.…”

Section: Introductionmentioning

confidence: 99%

Structural influences of two-dimensional and three-dimensional carbon/epoxy composites on mode I fracture toughness behaviors with rate effects on damage evolution

Siddique

Sun

2018

Journal of Industrial Textiles

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This paper reports the mode I interlaminar fracture toughness and fracture mechanisms of two-dimensional (2D) plain woven composite and three-dimensional (3D) angle-interlock woven composite. The fracture toughness behaviors were tested with double cantilever beam method at the different loading rates from 0.5 to 100 mm/min. Critical strain energy release rate was calculated to compare the difference between the 2D and the 3D woven composites. The fractographs were photographed with scanned electronic microscopy and optical microscopy to show the fracture morphologies. We found that the 3D angle-interlock woven composite has high fracture toughness than that of 2D woven composite. The binder yarns resist the crack initiation and propagation to increase the fracture toughness. While the lower in-plane stiffness of the 3D woven composites should be considered fully for designing the 3D woven composites.

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Drop-weight impact behaviors of 3-D angle interlock woven composites after thermal oxidative aging

Cited by 31 publications

References 35 publications

Compression after multiple low velocity impacts of NCF, 2D and 3D woven composites

Compression after multiple low velocity impacts of NCF, 2D and 3D woven composites

Low-velocity impact and residual flexural behaviors of 2.5-D woven composite under accelerated thermal ageing: Experiment and numerical modelling

Structural influences of two-dimensional and three-dimensional carbon/epoxy composites on mode I fracture toughness behaviors with rate effects on damage evolution

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