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wing root fitting

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270146
EISBN: 978-1-62708-301-0
...Abstract Abstract During a major servicing of an aircraft, cracks were found in the bottom wing root fitting. Based on dye penetrant inspection and the results of SEM fractography and chemical analysis, investigators concluded that the cracks were due to stress corrosion. They also recommended...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... reaches the unnotched ultimate tensile strength. The values a 0 and d 0 , which are considered to be material properties, are determined from plots of strength reduction versus hole size to give the best fit to the experimental results. The two criteria are related through the relationship a 0 = 4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... integrity program (ASIP) in 1958 F-111 aircraft No. 94 wing pivot fitting 1969 Fatigue failure due to material defect in high-strength steel Improved inspection techniques Change from fatigue “safe-life” to damage-tolerant design philosophy Development of materials with improved toughness Seam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180001
EISBN: 978-1-62708-256-3
... for engineers to properly assess the damage to the Shuttle wing. Decisions could have been made at the beginning of the mission when the Shuttle had more fuel and time. It seems like such a small issue in comparison to the tragedy that occurred almost two weeks later. However, the smallest of root causes can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... of design and anticipation of human errors. Fig. 2.21 A non-return valve that can be fitted incorrectly because of its design. Source: Ref 12 . With kind permission of Royal Aeronautical Society In one batch of aluminum alloy extrusions to be used for aircraft wing roots, blisters ( Fig. 2.22...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180061
EISBN: 978-1-62708-256-3
... Abstract Abstract Statistics, data analysis, root cause analysis, and problem-solving processes play a key role in failure investigations. This chapter explains how to collect failure investigation data, how to build and maintain a database for company-related failures, and how to use corresponding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... and the cost of autoclavable tools is too high. Filament winding and pultrusion are two other processes with deep roots in commercial part fabrication. While filament winding can be conducted using liquid resins and prepreg, by far the majority of parts are fabricated using the liquid resin method...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250257
EISBN: 978-1-62708-345-4
... Cavitation Erosion Electrical discharge Rippling (a) Scuffing Mild scuffing Moderate scuffing Severe scuffing Plastic deformation Indentation Cold flow Hot flow Rolling Tooth hammer Rippling (a) Ridging Burr Root fillet yielding Tip-to-root...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180127
EISBN: 978-1-62708-256-3
... for failure investigation and root cause determination: the Kepner-Tregoe structured problem-solving method, PROACT software for root cause analysis developed by the Reliability Center, Inc., and other processes and methods developed by the Failsafe Network, Inc., and Shainin LLC. References References...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870179
EISBN: 978-1-62708-344-7
... details of the notch. A notch with a small root radius will have a K t greater than a notch with a large root radius. The nature of the loading may also have an effect, but it is usually of secondary influence. (A notable exception is a circular hole in an infinite plate. Under axial loading, K t...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... to approximately 90% of all mechanical service failures. Fatigue is a problem that can affect any part or component that moves. Automobiles on roads, aircraft wings and fuselages, ships at sea, nuclear reactors, jet engines, and land-based turbines are all subject to fatigue failures. Fatigue was initially...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... are often a result of improper design or improper operation. A design analysis is essential in determining which of these is the root cause. Sometimes the improper design is a result of incorrect information passed to the designer. In these cases, a failure is the only indication that the wrong inputs were...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480353
EISBN: 978-1-62708-318-8
... inclusion (enriched in oxygen and/or nitrogen) that was the root cause of the catastrophic engine failure and crash. Fig. 15.9 Titanium support structure for a jet engine thrust reverser from a Rolls-Royce RB199 engine. Source: Ref 15.14 Competitive Comparison Titanium alloys compete...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140039
EISBN: 978-1-62708-264-8
... of curvature at the root of the notch causes a local rise in the stress there. The sharp radius is a stress concentrator or, alternately, a stress intensifier, and the smaller the radius, the higher the stress concentration. Small surface scratches, even those too small to see by eye, can produce stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... of mechanical fastening are in the aerospace, automotive, and construction industries. Machine Screws and Bolts Molded-in Threads Self-Threading Screws Rivets Spring-Steel Fasteners Press Fits Snap Fits Solvent bonding and adhesive bonding are assembly processes in which two or more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... factors. After a series of K values for various crack sizes across the entire crack plane are determined, a close-form equation can be obtained by fitting a curve through all the Y values. When the geometry under consideration contains only one boundary condition, the Y factor is the same...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870045
EISBN: 978-1-62708-299-0
... morphologies. (a) Pitting-type corrosion in the surface of an aircraft wing plank from an alloy 7075–T6 extrusion. (b) Intergranular corrosion in alloy 7075–T6 plate. Grain boundaries were attacked, causing the grains to separate. Both etched in Keller’s reagent and shown at 200× Fig. 2 Pitting...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280189
EISBN: 978-1-62708-267-9
... sawing operations were involved to provide a fair knowledge of the production capabilities of the three alloys in these operations. Fittings for assembling one body joint, one wing joint, and four wing-to-body joints were produced in 14 different shapes of various degrees of complexity (see...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... allowing the specimen to run parallel to the grain flow. Straightening of a warped tensile specimen during the test will result in a nonlinear indication on the initial portion of the stress-strain curve. This can be corrected to a line by using curve-fitting software or by drawing a line by eye back...