Study on intra/inter-ply shear deformation of three dimensional woven preforms for composite materials

Zhang, Yifan; Sun, Fei; Wang, Yanjie; Chen, Li; Pan, Ning

doi:10.1016/j.matdes.2013.02.025

Cited by 39 publications

(19 citation statements)

References 47 publications

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“…[21] carefully investigated the in-plane shear characterization of 2D fabric by experimental test and found that the reduction of yarn was a key to wrinkling. In past, research work on 3D fabrics and its shear performance were studied and reported by the authors [2,22]. In part I of this work, Arumugam et al.…”

Section: Introductionmentioning

confidence: 98%

In-plane shear behavior of 3D warp-knitted spacer fabrics: Part II—Effect of structural parameters

Arumugam

Mishra

Tunák

et al. 2017

Journal of Industrial Textiles

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The objective of this work is to study the in-plane shear behavior of 3D warp-knitted spacer knitted fabrics by using a picture frame fixture. This part aims to investigate the effects of structural parameters on the shear stress and energy absorption of warp-knitted spacer fabrics. A group of warp-knitted spacer fabrics was produced on a double-needle bar Raschel machine by varying their structural parameters including spacer yarn fineness, fabric thickness, and outer layer structure. The effects of fabric structural parameters on the shear properties of the spacer fabrics were tested and analyzed based on the nonlinear behavior of shear stress versus shear angle and the deformation mechanism. During loading process, the series of surface images were acquired in certain interval at different positions. These images were processed in image analysis software to obtain the full-field displacement and shear angles at chosen points on the surface of test specimen. The potential shear behavior of the fabric was identified with support of the shear stress–strain curve, work done, and efficiency at different shear stages. The regression model was used to establish the elastic deformation properties to obtain the shear results. Advance statistical evaluation and two-way analysis of variance are used to analyze the significance of various factors such as thickness, spacer yarn diameter, and surface structures on energy absorption at maximum shear load and deformation.

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Section: Introductionmentioning

confidence: 98%

In-plane shear behavior of 3D warp-knitted spacer fabrics: Part II—Effect of structural parameters

Arumugam

Mishra

Tunák

et al. 2017

Journal of Industrial Textiles

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“…The in‐plane shear mechanism of 3D preforms has been shown to be different from 2D fabrics . The shear behavior of 2D fabrics is mainly from the friction between the fabric layers, whereas the shear properties of 3D fabrics rely on the binder yarns interlacing with the weft . It could be concluded that the fabric structure had a great influence on the shear behavior of 3D preforms.…”

Section: Resultsmentioning

confidence: 99%

Shear properties of three‐dimensional woven composite reinforcements

et al. 2015

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This paper presents a comprehensive experimental study and detailed mechanistic interpretations of the shear deformation of three‐dimensional (3D) reinforcements. Six types of 3D angle interlock glass fiber preforms (3DAP) were fabricated using a range of weave parameters including the fabric density, fabric layer, and yarn linear density. A modified picture frame was developed to ensure a pure shear load during the test. Through a series of comprehensive tests, our results demonstrated that the fabric density played a key role in the mechanical properties of 3DAP and that the reinforcements with low fabric density and yarn linear density were easy to shear. The shear deformation mechanism was analyzed based on the meso‐structure. It is expected that this research will provide preliminary work for building a theoretical model of 3D woven preform. POLYM. COMPOS., 38:244–251, 2017. © 2015 Society of Plastics Engineers

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“…At this stage, lateral compression is the major source of resistance. 16,17,26,27 Any further deformation beyond this stage causes the yarns to buckle out-of-plane, leading to wrinkling. Hence, the angle at this stage is reported as the ''locking angle.''…”

Section: Picture Frame Testmentioning

confidence: 99%

Investigation of intra-ply shear behavior of out-of-autoclave carbon/epoxy prepreg

Mohan

Alshahrani

Hojjati

2016

Journal of Composite Materials

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The successful formation of composite parts without defects remains a challenging issue due to the complexity of the forming process. A better understanding of the factors that cause these flaws is necessary to optimize the operation. The present work investigates the in-plane shear behavior of out-of-autoclave carbon epoxy thermoset prepregs OOA and its effect on wrinkling using the picture frame test. The deformability of OOA at the real processing conditions helps to understand the applicability of such material for forming processes such as the double-diaphragm forming technique with aims to minimize overall manufacturing time and cost. Tests were performed at varying temperatures and displacement rates in order to determine their contribution to the fabric deformability. Digital image correlation was used to take sequential images at various stages of deformation and capture the onset of wrinkling. It was found that the processing temperature (resin viscosity), displacement rate, and layer counts (layer interactions) are the three most important parameters that influence the wrinkling. Presence of resin between the layers makes them interact with each other and therefore has an impact on the each layer shear angle. These parameters were then analyzed using the Taguchi and analysis of variance techniques to determine which factor has the most significant influence on the wrinkling.

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Study on intra/inter-ply shear deformation of three dimensional woven preforms for composite materials

Cited by 39 publications

References 47 publications

In-plane shear behavior of 3D warp-knitted spacer fabrics: Part II—Effect of structural parameters

In-plane shear behavior of 3D warp-knitted spacer fabrics: Part II—Effect of structural parameters

Shear properties of three‐dimensional woven composite reinforcements

Investigation of intra-ply shear behavior of out-of-autoclave carbon/epoxy prepreg

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