Onset of free-edge delamination in composite laminates under tensile loading

Lorriot, T.; Marion, Guillaume; Harry, R.; Wargnier, Hervé

doi:10.1016/s1359-8368(03)00016-7

Cited by 67 publications

(33 citation statements)

References 17 publications

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“…1b. For example, Lorriot indicated that the crack is possibly initiated from the intralayer region for a CFRP laminate tensile test caused by edge delamination [18]. Liebig also indicated that voids in CFRP laminate are located not only in the resin-rich interlayer region but also in the fibre-rich intralayer region [19].…”

Section: Introductionmentioning

confidence: 99%

Intralaminar fatigue crack growth properties of conventional and interlayer toughened CFRP laminate under mode I loading

Sato

Hojo

Nishikawa

2015

Composites Part A: Applied Science and Manufacturing

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Section: Introductionmentioning

confidence: 99%

Intralaminar fatigue crack growth properties of conventional and interlayer toughened CFRP laminate under mode I loading

Sato

Hojo

Nishikawa

2015

Composites Part A: Applied Science and Manufacturing

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“…It is important to remark the singular value of the (±20 4 ) s laminate. Aberrant results like this can be found in Brewer and Lagace (1988), Kim and Soni (1984), Lorriot et al (2003).…”

Section: Delamination Onset Detectionmentioning

confidence: 72%

“…EDT tests on (±10 n ) s and (±20 n ) s laminates are widely carried out (Brewer and Lagace, 1988;Kim and Soni, 1984;Lorriot et al, 2003). In these laminates, mode III delaminations appear at the 10/À10 and 20/À20 interfaces.…”

Section: Introductionmentioning

confidence: 99%

“…In these laminates, mode III delaminations appear at the 10/À10 and 20/À20 interfaces. Delamination onset may be detected by controlling the force-displacement response (Brewer and Lagace, 1988), by inspecting the edges with a microscope (Kim and Soni, 1984) or by monitoring with the acoustic emission technique (Lorriot et al, 2003). Nevertheless, a process zone at the interfaces has not been revealed yet with an experimental device.…”

Section: Introductionmentioning

confidence: 99%

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Interface plasticity and delamination onset prediction

Diaz

Caron

2006

Mechanics of Materials

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“…A delamination can occur during manufacturing or from an impact on the structure. Also, delaminations can occur due to interlaminar stresses [1]. These stresses are generated due to mismatches in Poisson's ratio and in-plane stress gradients.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Delamination on Damage Path and Failure Load Prediction for Notched Composite Laminates

Satyanarayana¹,

Bogert

Chunchu³

2007

48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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The influence of delamination on the progressing damage path and initial failure load in composite laminates is investigated. Results are presented from a numerical and an experimental study of center-notched tensile-loaded coupons. The numerical study includes two approaches. The first approach considers only intralaminar (fiber breakage and matrix cracking) damage modes in calculating the progression of the damage path. In the second approach, the model is extended to consider the effect of interlaminar (delamination) damage modes in addition to the intralaminar damage modes. The intralaminar damage is modeled using progressive damage analysis (PDA) methodology implemented with the VUMAT subroutine in the ABAQUS finite element code. The interlaminar damage mode has been simulated using cohesive elements in ABAQUS. In the experimental study, 2-3 specimens each of two different stacking sequences of center-notched laminates are tensile loaded. The numerical results from the two different modeling approaches are compared with each other and the experimentally observed results for both laminate types. The comparisons reveal that the second modeling approach, where the delamination damage mode is included together with the intralaminar damage modes, better simulates the experimentally observed damage modes and damage paths, which were characterized by splitting failures perpendicular to the notch tips in one or more layers. Additionally, the inclusion of the delamination mode resulted in a better prediction of the loads at which the failure took place, which were higher than those predicted by the first modeling approach which did not include delaminations.

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Onset of free-edge delamination in composite laminates under tensile loading

Cited by 67 publications

References 17 publications

Intralaminar fatigue crack growth properties of conventional and interlayer toughened CFRP laminate under mode I loading

Intralaminar fatigue crack growth properties of conventional and interlayer toughened CFRP laminate under mode I loading

Interface plasticity and delamination onset prediction

The Effect of Delamination on Damage Path and Failure Load Prediction for Notched Composite Laminates

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