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Abstract

The nose bullet of an aircraft engine developed a crack and was removed and examined to determine the cause. The bullet was made from a titanium alloy and was of welded construction. Close-up views show that the crack originated in an area of rework along the weld seam and propagated on either side. The case is a reminder that rework in a welded region requires careful planning and thought.

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Failure of the Nose Bullet in an Aircraft Engine, Failure Analysis of Engineering Structures: Methodology and Case Histories, By V. Ramachandran, A.C. Raghuram, R.V. Krishnan, S.K. Bhaumik, ASM International, 2005, p 160–161, https://doi.org/10.31399/asm.tb.faesmch.t51270160

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