1-20 of 43 Search Results for

Lugs

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001906
EISBN: 978-1-62708-217-4
... Abstract Suspension lugs fabricated from AISI 4340 steel used to facilitate loading of bombs onto the underside of military aircraft could not sustain required loads during routine proof load testing. Three failed lugs underwent visual examination, chemical analysis, metallography, hardness...
Image
Published: 01 December 2019
Fig. 2 General view of the cracks analyzed: ( a ) crack distribution in lugs and central regions of splint A and ( b ) splint B; the cracks present continuous morphology More
Image
Published: 01 December 1992
Fig. 3 Strut cylinder and drag-strut yoke showing fractured lugs. More
Image
Published: 01 December 1992
Fig. 4 Fractures of lower drag-strut yoke attachment lugs. More
Image
Published: 01 December 1992
Fig. 5 Fractures of drag-strut yoke attachment lugs. ∼4×. (a) Left upper lug. (b) Left lower lug. (c) Right upper lug. (d) Right lower lug. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091678
EISBN: 978-1-62708-217-4
... Abstract During a routine shear-pin check, the end lug on the barrel of the forward canopy actuator on a naval aircraft was found to have fractured. The lug was forged from aluminum alloy 2014-T6. Investigation (visual inspection, 2x views, and 140X micrographs etched with Keller's reagent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091674
EISBN: 978-1-62708-217-4
... Abstract Forged aluminum alloy 2014-T6 hinge brackets in naval aircraft rudder and aileron linkages were found cracked in service. The cracks were in the hinge lugs, adjacent to a bushing made of cadmium-plated 4130 steel. Investigation (visual inspection and 250X micrographs) supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0046146
EISBN: 978-1-62708-217-4
... that the primary fracture initiated from multiple origins on both sides of a lubrication hole that extended from the outer surface to the bore of a lug in two cadmium-plated flanged bushings made of copper alloy C63000 (aluminum bronze) that were press-fitted into each bored hole in the lug. Sectioning and 2x...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001020
EISBN: 978-1-62708-214-3
.... Hufnagel. Ed., aluminum-Zentrale, July 1982. (b) Plus ziroconium Fig. 10 Cracking associated with fracture of right lower attachment lug. Unetched. 301×. Fig. 7 SEM micrograph of fracture surface at left upper lug. 387×. Fig. 8 Cracking associated with fracture of left...
Image
Published: 01 June 2019
Fig. 1 Forged aluminum alloy 2014-T6 actuator barrel lug that failed by SCC. (a) View of the lug. 2×. Fracture at top was the initial fracture; arrow indicates location of a tiny region of pitting corrosion (on back side of lug) at which failure originated. Final fracture is at left. (b More
Image
Published: 01 June 2019
Fig. 8 Failure of Locking Lug on a Cartridge Chamber. More
Image
Published: 01 December 1992
Fig. 7 SEM micrograph of fracture surface at left upper lug. 387×. More
Image
Published: 01 December 1992
Fig. 8 Cracking associated with fracture of left upper attachment lug. Unetched. 17.2×. More
Image
Published: 01 December 1992
Fig. 9 Cracking associated with fracture of left upper attachment lug. Etched in 5% Keller's reagent. 237×. More
Image
Published: 01 December 1992
Fig. 10 Cracking associated with fracture of right lower attachment lug. Unetched. 301×. More
Image
Published: 01 December 1992
Fig. 6 Cracks at surface of hole for drag-strut yoke steel attachment pin. (a) Center region of lug. (b) Right edge of lug. 7.4×. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001144
EISBN: 978-1-62708-217-4
... Abstract A helicopter was hovering approximately 10 ft above a ship when one spar section failed explosively. Visual inspection revealed a crack had progressed through one member of a dual spar plate assembly at a fold pin lug hole. The remaining spar plate carried the blade load until...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001145
EISBN: 978-1-62708-217-4
... and unzipping of the chamber dome, burn-through of the dome, and shearing of bayonet locking lugs. Factors identified as significant in the failures are the pressure developed in the chamber and internal corrosion of the chamber in an environment that can produce stress-corrosion cracking. The interior...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048850
EISBN: 978-1-62708-229-7
... Abstract Cracks on the outer surface near a hanger lug were revealed by visual inspection of a type 316 stainless steel main steam line of a major utility boiler system. Cracking was found to have initiated at the outside of the pipe wall or immediately beneath the surface. The microstructure...
Image
Published: 01 June 2019
Fig. 1 Blacklight macrograph showing typical lap defect within the bail region of a handling lug (3× magnification) More