Interlaminar shear strain measurement on angle-ply laminate free edge using digital image correlation

Lecomte‐Grosbras, Pauline; Paluch, Bernard; Brieu, Mathias; Saxcé, Géry de; Sabatier, Laurent

doi:10.1016/j.compositesa.2009.07.011

Cited by 29 publications

(24 citation statements)

References 28 publications

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“…In [30], Chataigner et al performed original observations and measurements in a double lap adhesively bonded joint which showed the evolution and growth of a plastic zone in the adhesive layer. In composite laminates, similar non-linear phenomena have also been observed at the interfaces of cross-ply carbon epoxy laminates [31,32]. Diaz and Caron measured an interface sliding which seemed to control a mode III delamination onset at the free edges of the laminates that they tested [31].…”

Section: Introductionmentioning

confidence: 87%

Enhanced layerwise model for laminates with imperfect interfaces – Part 2: Experimental validation and failure prediction

Mendoza-Navarro

Diaz

Caron

et al. 2012

Composite Structures

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Section: Introductionmentioning

confidence: 87%

Enhanced layerwise model for laminates with imperfect interfaces – Part 2: Experimental validation and failure prediction

Mendoza-Navarro

Diaz

Caron

et al. 2012

Composite Structures

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“…In fibre reinforced cross-ply composite laminates, the thin matrix or adhesive layer located at the interface between the plies may exhibit high plastic strains which seem to control delamination onset [22,23]. In a similar manner, in adhesively bonded joints significant plastic strains in the adhesive layers precede by far failure initiation [24].…”

Section: Introductionmentioning

confidence: 94%

Enhanced layerwise model for laminates with imperfect interfaces – Part 1: Equations and theoretical validation

Alvarez-Lima¹,

Diaz²,

Caron³

et al. 2012

Composite Structures

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“…To be able to observe them, experiments are carried out with a scanning electron microscope (SEM) to obtain grey level pictures of the sample surface. This observation can be performed either post-mortem [11,12], at the end of an interrupted test [13,14] or even in situ in the SEM [15,16].…”

Section: Introductionmentioning

confidence: 99%

Mechanically Regularized FE DIC for Heterogeneous Materials

Naylor

Hild

Fagiano³

et al. 2019

Exp Mech

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In situ tensile tests in a scanning electron microscope (SEM) have been conducted on a 8layer 5-harness satin carbon fibre and epoxy matrix composite to observe the first stages of damage at the scale of fibres and matrix. A speckle pattern based on a suspension of alumina particles was applied onto the surface of the specimen to facilitate the use of digital image correlation (DIC). Local and finite element (FE) DIC are compared on pictures acquired during the tensile tests, with and without a speckle pattern. FE DIC with mechanical regularization was found to be the only approach able to measure displacement fields at a fine enough resolution in both cases. This method, initially created for homogeneous materials, was then adapted to heterogeneous materials. First, a microstructure consistent mesh was created and used for correlation purposes. Second, the difference between the mechanical properties of the constituents is taken into account in the mechanical regularization. Last, the accuracy of the method is analysed. The adaptation presented herein was proved to be able to measure displacement fields in the matrix between fibres with an error of 10 nm (a fifth of a pixel) and to detect the initiation of the first damage mechanisms by means of the mechanical residuals.

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Interlaminar shear strain measurement on angle-ply laminate free edge using digital image correlation

Cited by 29 publications

References 28 publications

Enhanced layerwise model for laminates with imperfect interfaces – Part 2: Experimental validation and failure prediction

Enhanced layerwise model for laminates with imperfect interfaces – Part 2: Experimental validation and failure prediction

Enhanced layerwise model for laminates with imperfect interfaces – Part 1: Equations and theoretical validation

Mechanically Regularized FE DIC for Heterogeneous Materials

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