scholarly journals Dynamical analysis of homogenized second gradient anisotropic media for textile composite structures and analysis of size effects

2017 ◽  
Vol 161 ◽  
pp. 540-551 ◽  
Author(s):  
H. Reda ◽  
I. Goda ◽  
J.F. Ganghoffer ◽  
G. L'Hostis ◽  
H. Lakiss
Keyword(s):  
Size Effects ◽  
Composite Structures ◽  
Anisotropic Media ◽  
Dynamical Analysis ◽  
Textile Composite ◽  
Second Gradient

Studying the effect of reinforcement parameters on the mechanical properties of natural fibre-woven composites by Taguchi method

2019 ◽  
Vol 50 (2) ◽  
pp. 133-148 ◽  
Author(s):  
Senthil Kumar ◽  
S Balachander
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Composite Structures ◽  
Research Work ◽  
Engineering Application ◽  
Areal Density ◽  
Natural Fibre ◽  
Woven Fabrics ◽  
Woven Composites ◽  
Textile Composite

Process optimization is the key task of any engineering application to maximize the desirable output by optimizing the range of process parameters. In this research work, jute composites were fabricated by the hand lay-up method with the aim of optimizing the process parameter such as yarn linear density, fabric areal density and fabric laying angle on the mechanical properties of the textile composite structures using the Taguchi L9 orthogonal matrix. The plain-woven and twill-woven fabrics of Jute fabrics were produced through specialized handloom machine and used as preform for composite production. Epoxy resin was used as the matrix component. Signal-to-noise ratio ratio, analysis of variance and experimental verification of results were analysed. The results showed that fabric laying angle played major role to achieve high mechanical properties of composites and twill-woven structural reinforcement yields higher mechanical properties. Subsequent to this optimal process, parameters have been arrived for all the composites, and finally it was verified through the experimental results.

Size Effects in the Impact of Carbon Fiber Reinforced Composite Structures

2018 ◽  
Vol 789 ◽  
pp. 155-160
Author(s):  
Yi Ou Shen ◽  
Yan Li
Keyword(s):  
Size Effects ◽  
Composite Structures ◽  
Impact Force ◽  
Flexural Rigidity ◽  
Experimental Results ◽  
Target Size ◽  
Mass Model ◽  
Energy Impact ◽  
Maximum Impact Force ◽  
The Impact

In this study, target size effects in the low energy impact response of plain CFRP plateswere investigated. It was found that increase the target size leads to a reduction in the maximumimpact force recorded during the test. This is due to the reduction on flexural rigidity of the largerpanels. The experimental results indicated that at energies above the first failure threshold, themaximum impact force does not coincidence with the predicting value. Two mathematical modelswere used to predict the maximum impact force including single degree of freedom (SDOF)spring-mass model and Energy-Balance (E-B) model. The predicting results were then comparedwith the experimental results, and both of the two models show good agreement with theexperimental results in elastic deformation region. In addition, the level of agreement between thepredictions and the experimental results indicate that both models are capable of modelling theimpact response of these CFRP panels at elastic regime.

Construction of second gradient continuum models for random fibrous networks and analysis of size effects

2017 ◽  
Vol 181 ◽  
pp. 347-357 ◽  
Author(s):  
K. Berkache ◽  
S. Deogekar ◽  
I. Goda ◽  
R.C. Picu ◽  
J.-F. Ganghoffer
Keyword(s):  
Size Effects ◽  
Continuum Models ◽  
Second Gradient ◽  
Second Gradient Continuum

Factors Affecting Tensile Performance of 2D & 3D Angle Interlock Woven Fabric Composite: A Review

2015 ◽  
Vol 1134 ◽  
pp. 147-153 ◽  
Author(s):  
Mohamad Faizul Yahya ◽  
Faris Mohd Zulkifli Nasrun ◽  
Suzaini A. Ghani ◽  
Mohd Rozi Ahmad
Keyword(s):  
Composite Structures ◽  
Mechanical Performance ◽  
Impact Resistance ◽  
Laminated Composite ◽  
Woven Fabric ◽  
Textile Composite ◽  
High Fracture ◽  
Factors Affecting ◽  
Textile Materials ◽  
Delamination Resistance

In recent years, textile composite are widely utilized as structural components in the area of aerospace, civil engineering, protective armour and automotive applications. Textiles structures become increasingly significant for composites application due to strength to weight factor. [1-4]. Various textile materials are extensively used such as fibres, yarns and fabrics. Commonly, textile composite structures are characterized according to the textile preform architecture either it is a conventional 2D laminated structure or 3D textile structural laminated composite [2]. Comparative studies between both types have suggested that 3D textile structure exhibit superior mechanical performance in tensile strength, impact resistance, flexural, delamination resistance, high fracture tolerance [1, 5, 6].

A Novel Shell Element for Quasi-Static and Natural Frequency Analysis of Textile Composite Structures

2014 ◽  
Vol 81 (8) ◽  
Author(s):  
Wu Xu ◽  
Anthony M. Waas
Keyword(s):  
Finite Element ◽  
Natural Frequency ◽  
Composite Structures ◽  
Repeat Unit ◽  
Three Dimensional ◽  
Shell Element ◽  
Textile Composite ◽  
Shell Finite Element ◽  
Three Dimensional Finite Element ◽  
Natural Frequency Analysis

A shell element for analysis of textile composite structures is proposed in this paper. Based on the embedded element method and solid shell concept, the architecture, geometry, and material properties of a repeat unit cell (RUC) of textile composite are embedded in a single shell finite element. Flat and curved textile composite structures are used to apply and verify the present shell element. The deformation and natural frequency obtained by the present shell element are compared against those computed from full three-dimensional finite element analyses. It is shown that the proposed shell element is efficient, simple, and reliable for textile composite structural analysis.

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