Stress analysis of perforated composite plates

Rezaeepazhand, Jalil; Jafari, Mohammad

doi:10.1016/j.compstruct.2005.09.017

Cited by 69 publications

(41 citation statements)

References 6 publications

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“…In most of these works, circular and elliptical cutouts are considered. In previous works, Rezaeepazhand and Jafari [12,13] investigated stress analysis of composite plates with noncircular (triangular, square and polygonal) cutout subjected to uniaxial tensile load. Furthermore, the effect of cutout parameters, load direction and cutout orientation on maximum stresses of perforated composite plates with quasi-square cutout was presented [14].…”

Section: Literature Reviewmentioning

confidence: 99%

Stress concentration in metallic plates with special shaped cutout

Rezaeepazhand

Jafari

2010

International Journal of Mechanical Sciences

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Section: Literature Reviewmentioning

confidence: 99%

Stress concentration in metallic plates with special shaped cutout

Rezaeepazhand

Jafari

2010

International Journal of Mechanical Sciences

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“…In order to investigate the efficacy and accuracy of the method for such cross-sections, special shape functions are used to model closed cross-sections with tractable shapes and bluntness of corners in x-y plane [21]:…”

Section: Non-circular Cross-sectionsmentioning

confidence: 99%

Approximate Torsional Analysis of Multi-layered Tubes with Non-circular Cross-Sections

Bazehhour

Rezaeepazhand

2011

Appl Compos Mater

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In this paper an approximate formulation for torsional analysis of tubes with multi-layered non-circular cross-sections is presented. A previously presented method based on Bredt's theory is extended to achieve these formulas. Layers are assumed to be isotropic and may possess different thicknesses and material properties. The obtained formulas for shear stress and angle of twist are applicable to thin to moderately thick closed cross-sections. It is shown that depending on the properties of the layers, maximum shear stress does not necessarily happen on the outer boundary. Furthermore, the effect of different cross-sectional shapes on torsional response is studied. Using the presented method, one can achieve desirable shear stresses and angles of twist for a polygonal multilayered tube with a proper choice of bluntness. The method can be extended for torsion problem of FGM tubes as well. The presented formulas for torsion problem are relatively accurate and suitable to be implemented in optimization programs.

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“…Extensive research has been carried out for stress analysis around flat composite panels by analytical or numerical methods [1][2][3][4]. Studies were also performed in finding optimised cutout shape, e.g.…”

Section: Introductionmentioning

confidence: 99%

Buckling and post-buckling of a composite C-section with cutout and flange reinforcement

Guo

Zhang

et al. 2014

Composites Part B: Engineering

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a b s t r a c tThis paper presents an investigation into the effect of cutout and flange reinforcement on the buckling and post-buckling behaviour of a carbon/epoxy composite C-section structure. The C-section having a cutout in the web is clamped at one end and subjected to a shear load at the other free end. Three different stiffener reinforcements were investigated in finite element analysis by using MSC Nastran. Buckling load was predicted by using both linear and nonlinear FE analysis. Experiments were carried out to validate the numerical model and results. Subsequently post-buckling analysis was carried out by predicting the load-deflection response of the C-section beam in nonlinear analysis. Tsai-Wu failure criterion was used to detect the first-play-failure load. The effect of circular and diamond cutout shape and effective flange reinforcements were investigated. The results show that the cutout and reinforcement have little effect on the buckling stability. However an L-shape stiffener to reinforce the C-section flange can improve the critical failure load by 20.9%.

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Stress analysis of perforated composite plates

Cited by 69 publications

References 6 publications

Stress concentration in metallic plates with special shaped cutout

Stress concentration in metallic plates with special shaped cutout

Approximate Torsional Analysis of Multi-layered Tubes with Non-circular Cross-Sections

Buckling and post-buckling of a composite C-section with cutout and flange reinforcement

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