The effect of delamination geometry on the compressive failure of composite laminates

Short, GJ; Guild, FJ; Pavier, Martyn J

doi:10.1016/s0266-3538(01)00134-8

Cited by 88 publications

(44 citation statements)

References 15 publications

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“…Single level delamination is discussed by various researchers such as Pavier and Chester (1990), Greenhalgh (1993), Bolotin (1996), and Short et al (2001Short et al ( , 2002. Publications dealing with multiple delaminations include Larsson (1991), Kutlu and Chang (1995a,b), Kouchakzadeh and Sekine (2000) and recently Cappello and Tumino (2006).…”

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confidence: 99%

Prediction of initiation and growth of single level delaminations in a transversely loaded composite specimen using fracture mechanics

et al. 2008

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The behaviour of a composite test specimen with an embedded delamination subjected to transverse tension has been investigated through experimental testing and finite element (FE) analyses. The testing program consisted of specimens in two geometrical configurations; square and rectangular delamination. The initiation and growth of the delamination was numerically predicted by fracture mechanics. FE models were analysed with both MSC.Nastran and Abaqus FE codes. The MSC.Nastran model was used to calculate strain energy release rates employing a crack tip element methodology. The Abaqus model was evaluated using the virtual crack closure technique. Both approaches accurately predicted failure initiation locations as observed in the test specimens. Failure loads were also well predicted. The mode mix at the crack tip in the proposed specimen was found to be similar to the mode mix expected in a conventional in-plane compression specimen.

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Prediction of initiation and growth of single level delaminations in a transversely loaded composite specimen using fracture mechanics

et al. 2008

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“…Previous work [8] indicated that the failure of a laminate with delamination may be predicted by the load at which the maximum compressive stress in the fiber direction reaches a critical value. By contrast, in the present study, for the sizes and thickness-oriented locations Fig.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…For the past two decades a number of researches approached the compressive behavior and damage propagation of delaminated composite structures experimentally, analytically and with a finite element method [1][2][3][4][5][6][7][8][9]. Chai et al [1] initiated the delamination buckling models by focusing on the delamination thickness and the number of delaminations over the thick regions of the laminate.…”

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confidence: 99%

“…The two scholars also did a parametric study on the influence of the delamination size, shape and alignment of a series of composite plates. Short et al [8] studied the effect of delamination geometry on the compressive failure of composite laminates, in which finite element and simple closed-form models were also developed for delaminated panels with isotropic properties. More recent work has concentrated on the compressive behavior of composite plates with multiple delaminations [10][11][12][13][14][15][16].…”

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On the Distribution of Delamination in Composite Structures and Compressive Strength Prediction for Laminates with Embedded Delaminations

Zhang

2010

Appl Compos Mater

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In this study, large numbers of aircraft composite structures were inspected, and the distribution of delamination sizes and though thickness positions in the composite laminates are investigated. An experiment is conducted to probe into the influence of delamination sizes and through thickness positions on the compressive strengths of laminates with single embedded circular delamination, with the most dangerous delamination sizes and positions defined from the distribution. Furthermore, a shell model is established for compressive strength prediction, with delamination propagation assessed using a mixed mode criterion. The finite element (FE) prediction comes out to be in good agreement with the experimental measurements, for the predicted compressive strengths stand within 10% error of experimental results. It was observed that the compressive strength was highly influenced by the delamination size, while the through thickness position of delamination did not have significant effect on the compressive strength.

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“…Single level delaminations have been investigated by various researchers including Pavier and Chester (1990), Greenhalgh (1993), Bolotin (1996) and Short et al (2001Short et al ( , 2002. The research presented in this paper is an extension of previous work (Mikulik et al 2008) that focused on the development and analysis of single level delamination specimens tested in transverse tension.…”

Section: Introductionmentioning

confidence: 98%

Fracture mechanics based predictions of initiation and growth of multi-level delaminations in a composite specimen

Mikulik

Kelly

Thomson³

et al. 2011

Int J Fract

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Design and manufacture of composite test specimens with two embedded delaminations subjected to transverse tension is described in this paper. The behaviour of the specimens has been investigated through experimental testing and finite element analyses. Fracture mechanics approaches were applied to predict the initiation and growth of delaminations and the degradation of the load carrying capacity of the specimens. Models were generated in the FE software programs MSC.Nastran and Abaqus. The MSC.Nastran model was used to calculate strain energy release rates employing a crack tip element methodology. The Abaqus model was evaluated using the virtual crack closure technique. The accuracy of numerical solutions was established by qualitative and quantitative comparisons with the experimental measurements, the results obtained from the ultrasonic non-destructive inspections and microscopic examination. It was shown that fracture mechanics can be used to accurately predict the failure initiation locations and failure loads of composite specimens containing multi-level delaminations.

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The effect of delamination geometry on the compressive failure of composite laminates

Cited by 88 publications

References 15 publications

Prediction of initiation and growth of single level delaminations in a transversely loaded composite specimen using fracture mechanics

Prediction of initiation and growth of single level delaminations in a transversely loaded composite specimen using fracture mechanics

On the Distribution of Delamination in Composite Structures and Compressive Strength Prediction for Laminates with Embedded Delaminations

Fracture mechanics based predictions of initiation and growth of multi-level delaminations in a composite specimen

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