Predictions of elastic property on 2.5D C/SiC composites based on numerical modeling and semi-analytical method

Chen, Liangjia; Yao, Xuefeng; Cen, Song

doi:10.1016/j.compositesb.2015.01.009

Cited by 37 publications

(7 citation statements)

References 18 publications

(16 reference statements)

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“…Up to now, the investigation on the mechanical testing, finite element (FE) analysis, nondestructive testing (NDT) and failure behaviors of the composites have been carried out extensively. [12][13][14][15][16][17][18] Ghasemnejad et al 19 simulated the post-buckling failure process by FE method, which agreed well with the experimental results. Acoustic emission (AE) has emerged as a novel dynamic nondestructive monitoring technology, which can be used to investigate the damage mechanisms originated from matrix cracking, delamination and fiber failure of the composites.…”

Section: Introductionsupporting

confidence: 68%

Acoustic emission response and micro-deformation behavior for compressive buckling failure of multi-delaminated composites

Zhou

et al. 2016

The Journal of Strain Analysis for Engineering Design

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Accurate characterization of delamination damage and evolution plays a significant role in studying the failure behaviors of composite laminates. In the present research, both acoustic emission and digital image correlation technology are used to simultaneously monitor the buckling process of multi-delaminated composites under compression. Three kinds of composite specimens are carried out to investigate the influence of delamination lengths and positions on the compressive behaviors of the composites. Meanwhile, the buckling load, micro-displacement fields of interfacial zone and acoustic emission response characterizations are also obtained. The results indicate that acoustic emission parameters such as hits, amplitude, duration and relative energy are correlated with the damage process of composite specimens, while the critical damage deformation of delamination regions is clearly exhibited from digital image correlation results. Furthermore, the buckling behaviors are significantly influenced by the thickness of sub-layer and the lengths and positions of delaminations. The complementary nondestructive testing technologies combining acoustic emission with digital image correlation are beneficial for in situ damage monitoring of the composites.

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Section: Introductionsupporting

confidence: 68%

Acoustic emission response and micro-deformation behavior for compressive buckling failure of multi-delaminated composites

Zhou

et al. 2016

The Journal of Strain Analysis for Engineering Design

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“…From the viewpoint of strengthening, the elastic properties of individual carbon fibres are determinative and their knowledge is important to predict and improve the macromechanical behaviour of these composites within their elastic limit [2,3]. The elastic properties of carbon fibres are strongly influenced by their nanostructure (e.g.…”

Section: Introductionmentioning

confidence: 99%

Nanoindentation derived elastic constants of carbon fibres and their nanostructural based predictions

Csanádi

Németh

Zhang

et al. 2017

Carbon

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Elastic constants of single carbon fibres were estimated by a novel nanoindentation based method and subsequently predicted by modified two-and three-phase Eshelby-Mori-Tanaka (EMT) micromechanical models which takes into account both crystalline, amorphous phases and microvoids of the fibre structure. This case study was carried out on a T-300 PAN-based carbon fibre reinforced SiC composite material at room temperature. Transversal and longitudinal cross-sections of individual fibres were indented by a sharp Berkovich tip up to the maximum depth of 150 nm. Assuming transverse isotropy of the fibres, their five elastic constants were deduced from the measured indentation moduli using numerical (Vlassak-Nix) and analytical

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“…The corresponding nine elastic constants of C/SiC are listed in Table 1; E 11 and E 33 are obtained from the literature, 18 and the other parameters are derived from numerical simulation. 19 For C/SiC composites, two failure parameters in the x-direction are introduced ignoring the effect of shear stress as shown in Eq. (4), which depend on the tensile or compressive normal stress, respectively.…”

Section: C/sic Compositementioning

confidence: 99%

Normal impact behaviour of C/SiC rigid‐felt titanium alloy three‐layered plate

Chen

Yao

Cen

et al. 2015

Fatigue Fract Eng Mat Struct

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In this paper, impact damage behaviours of C/SiC rigid‐felt titanium alloy three‐layered plate under normal impact are investigated. First, low velocity impact experiment of the three‐layered plate is performed by means of a drop weight impact apparatus. Second, the finite element model of the three‐layered plate is established using a damage constitutive model; also, the influences of the initial kinetic energy (the initial velocity and the mass of the impactor) on stress distributions and damage patterns of the three‐layered plate are analysed. Finally, the energy dissipation mechanisms and failure characterizations of the three‐layered plate are discussed; also, the agreements of physical variables and damage morphologies between experimental and numerical results validate the reliability of numerical simulation. The results will play an important role in designing and evaluating advanced thermal protection structure.

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Predictions of elastic property on 2.5D C/SiC composites based on numerical modeling and semi-analytical method

Cited by 37 publications

References 18 publications

Acoustic emission response and micro-deformation behavior for compressive buckling failure of multi-delaminated composites

Acoustic emission response and micro-deformation behavior for compressive buckling failure of multi-delaminated composites

Nanoindentation derived elastic constants of carbon fibres and their nanostructural based predictions

Normal impact behaviour of C/SiC rigid‐felt titanium alloy three‐layered plate

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