Constrained cracking in cross-ply laminates

Korczynskyj, Y.; Morley, J. G.

doi:10.1007/bf00540625

Cited by 18 publications

(2 citation statements)

References 7 publications

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“…Energy methods and fracture mechanics have also been used to gain insight into matrix cracking associated with residual stresses. Both glass and carbon fibers in epoxy resin laminates have been considered, with experimental verification of the analytical models [18][19][20]. It was found that thermal stresses are larger in carbon-reinforced composites (CFRP) than in glass reinforced composites (GFRP) because of large differences in coefficients of thermal expansion and moduli of elasticity in directions parallel and perpendicular to the fibers.…”

Section: Review Of Cold Regions Related Composite Materials Researchmentioning

confidence: 99%

On the Design of Polymeric Composite Structures for Cold Regions Applications

Lord

Dutta

1988

Journal of Reinforced Plastics and Composites

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This study focuses attention on low-temperature hygrothermal effects which influence the short-and long-term behavior and characterization of polymeric composite materials. A review of the literature reveals a scarcity of low-temperature material performance data needed for design of composite materials for cold regions applications. Four problem areas are identified: (1) hygrothermal residual stresses, (2) material degradation due to low-temperature environmental cycling, (3) moisture effects on freeze-thaw cycling, and (4) long-term synergistic effects of combined loading history and environmental exposure on material durability. A brief review of past work is presented and areas identified where more research is needed to develop the data base required for design of composite materials for cold environments.

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Section: Review Of Cold Regions Related Composite Materials Researchmentioning

confidence: 99%

On the Design of Polymeric Composite Structures for Cold Regions Applications

Lord

Dutta

1988

Journal of Reinforced Plastics and Composites

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“…Tunneling cracks propagating across a bond-line, loaded quasi-static or cyclic, are comparable with propagating off-axis matrix tunneling cracks in composite structures e.g. cross ply laminates [13,14,15,16,17,18,19,20,21]. Tunneling cracks have been modelled extensively through the last three decades using linear elastic fracture mechanics (LEFM) [22,23,24,25,19,26,27].…”

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Tunneling cracks in full scale wind turbine blade joints

Jørgensen

Sørensen

Kildegaard³

2018

Engineering Fracture Mechanics

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A novel approach is presented and used in a generic tunneling crack tool for the prediction of crack growth rates for tunneling cracks propagating across a bond-line in a wind turbine blade under high cyclic loadings. In order to test and demonstrate the applicability of the tool, model predictions are compared with measured crack growth rates from a full scale blade fatigue test. The crack growth rates, measured for a several metre long section along the blade trailing-edge joint during the fatigue test, are found to be in-between the upper-and lower-bound predictions.

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