Multiple-site and widespread fatigue damage in aging aircraft

Pitt, Susan; Jones, Rhys

doi:10.1016/s1350-6307(97)00020-4

Cited by 89 publications

(35 citation statements)

References 22 publications

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“…Th e inhibition should be between 1 and 100 for inhibitors in paints fi lms. Th e typical chromate inhibitors SrCrO 4 , CaCrO 4 , BaCrO 4 have I i values of 5, 141 and 0.2, respectively [26]. Th e systems forming the simplest class of self-healing coatings are those that incorporate a new inhibitor (satisfying the criterion in Equation 1) as a drop-in replacement.…”

Section: Current Paint Systemsmentioning

confidence: 99%

“…Recent studies have shown that corrosion costs 2-5% of the gross domestic product for industrialized countries [3]. While there are relatively few catastrophic failures related to corrosion [4], the burden of these costs results in operational limitations in a wide range of activities. For example, the large maintenance costs for the United States Air Force are now impacting the budget for the purchase of new aircraft [3].…”

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confidence: 99%

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Designing green, self-healing coatings for metal protection

et al. 2010

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Metals are used extensively in modern society in a range of applications from infrastructure to aircraft to consumer products. The protection of metals, primarily from corrosion, has been an active area of materials science for many years. However, over the last 20 years, changing regulations governing both environmental issues and human health have driven even greater activity in this fi eld. Addressing these regulatory changes presents some of the most exciting challenges in materials science. This review looks at current metal protection schemes, exploring the development of 'green' inhibitors and 'self-healing' paint fi lms that have inbuilt capacity to maintain functionality. Inorganic and organic materials science has undergone rapid development in recent decades and this review looks at how some of those developments, particularly in encapsulation and polymer healing, can be applied to the design of new protective paint systems.

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Section: Current Paint Systemsmentioning

confidence: 99%

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confidence: 99%

Designing green, self-healing coatings for metal protection

et al. 2010

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“…The NDT of aircraft in service has assumed greater importance after the Aloha accident of 1988 and special emphasis has been placed on detection of fatigue cracks and hidden corrosion in airframe structures and in rivet heads 1,2 . Among various NDT techniques, visual inspection using boroscopes and fibroscopes is routinely carried out.…”

Section: Introductionmentioning

confidence: 99%

Development of Eddy Current Test Procedure for Non-destructive Detection of Fatigue Cracks and Corrosion in Rivets of Air-intake Structures

Sundaravel¹

2009

DSJ

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Non-destructive detection of defects in countersunk of rivets in multi-layer air-intake structures is essential for ensuring structural integrity and flight safety. This paper presents an eddy current test procedure developed for reliable detection of simulated fatigue cracks and corrosion products in rivets of air-intake structures. This procedure is capable of reliably detecting 0.25 mm deep defects in 4 mm dia rivets and 0.75 mm deep defects in 5 mm dia rivets. Further, it is not influenced by thickness of the multilayers.

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“…In a similar way we have to point out the interest in airplane safety which arose after the Aloha accident [1,2] for civil aviation and after the Royal Australian Air force (RAAF) Machi accident [2] for military aviation associated to the presence of the cracks [3]. If the number of crack is limited and the crack or hole size is small compared to the damaged component, repairs are less expensive, otherwise the component should be replaced [4].…”

Section: Introductionmentioning

confidence: 99%

Some aspects and aerodynamic effects in repairing battle damaged wings

Djellal¹,

Ouibrahim²

2009

WIT Transactions on Modelling and Simulation

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This paper concerns an experimental investigation, conducted to estimate the aerodynamic effects of aircraft battle-damage repair patches. Of particular concern in this study are the wings. Three different repair schemes are considered, lower (repair at the intrados), upper (repair at the extrados) and full repairs (both intrados and extrados at the same time). Preliminary results clearly showed that repair patches improve the aerodynamic performances of the damaged aircraft model. The full repair was shown to achieve the best recovery of the aerodynamic performances provided that the patch is thin enough. Repairs performed on only one surface (i.e. upper or lower) were also shown to provide significant aerodynamic improvements. The improvement tendency decreases with the increase of the patch thickness. Above a certain thickness value, the fineness decreases below the fineness of the damaged unrepaired model.

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Multiple-site and widespread fatigue damage in aging aircraft

Cited by 89 publications

References 22 publications

Designing green, self-healing coatings for metal protection

Designing green, self-healing coatings for metal protection

Development of Eddy Current Test Procedure for Non-destructive Detection of Fatigue Cracks and Corrosion in Rivets of Air-intake Structures

Some aspects and aerodynamic effects in repairing battle damaged wings

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