Modeling of composite plates with an arbitrary hole location using the variable separation method

Vidal, Philippe; Gallimard, Laurent; Polit, O.

doi:10.1016/j.compstruc.2017.07.020

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…The results are presented as design Progressive failure analysis 569 curves to know stress concentrations. Vidal et al (2017) presented the effect of hole orientation on stress distribution using a variable separation method. Milan Batista (2011) presented a solution for stress concentrations around complex geometry polygonal holes in the plate.…”

Section: Introductionmentioning

confidence: 99%

Progressive failure analysis of laminated plate containing elliptical cutout

Magar

Lal

2021

IJSI

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PurposeThe prediction of accurate failure strength and a composite laminate failure load is of paramount importance for reliable design. The progressive failure analysis helps to predict the ultimate failure strength of the laminate, which is more than the first ply failure (FPF) strength. The presence of a hole in the laminate plate results in stress concentration, which affects the failure strength. The purpose of the current work is to analyze the stress variation and progressive failure of a symmetric laminated plate containing elliptical cutouts under in-plane tensile loading. The effect of various parameters on FPF and last ply failure (LPF) strength is studied.Design/methodology/approachThe ply-by-ply stresses around elliptical cutouts are obtained analytically using Muskhelishvili's complex variable formulation. To predict the progressive failure, Tsai–Hill (T-H) and Tsai–Wu (T-W) failure criteria are used, and depending on the mode of failure, lamina modulus is degraded.FindingsThe study has revealed that fiber orientation and stacking sequence for given loading have the most significant effect on the laminate's failure strength.Originality/valueComplex variable method and conformal mapping are simple and proficient for studying failure analysis of a laminated plate with elliptical cutout.

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Section: Introductionmentioning

confidence: 99%

Progressive failure analysis of laminated plate containing elliptical cutout

Magar

Lal

2021

IJSI

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“…Two-dimensional beams [25], plates [26,27] and cylindrical composite shells [28,29] were studied by Vidal and co-workers. A solution for composite plates with a hole, where the hole position is a solution space parameter was presented by Vidal et al [30]. The solution space was enriched by considering the stacking sequence in composite plates by Vidal et al [31].…”

Section: Introductionmentioning

confidence: 99%

Modeling of composite and sandwich beams with a generic cross-section using a variable separation method

Vidal¹,

Giunta²,

Gallimard³

et al. 2019

Composites Part B: Engineering

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In this work, the modeling of laminated composite and sandwich beams with a generic cross-section is performed through a variable separation approach. For this purpose, the displacement is approximated as a sum of separated functions of the cross-section coordinates y z , and the axial coordinate x. This choice yields to a non-linear problem that can be solved by an iterative process. This latter consists of solving a 2D and 1D Finite Element problem successively at each iteration. Numerical examples involving several representative sandwich and laminated beams are addressed to show the accuracy of the present method. It is shown that it can provide 3D results and capture local effects for various types of cross-section.

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