Multiplicative manufacturing and aircraft sustainment

Rhys Jones, Daren Peng, Neil Matthews

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Otherpeer-review

3 Citations (Scopus)

Abstract

In the context of aircraft sustainment, multiplicative manufacturing is defined as the simultaneous application of subtractive and additive manufacturing processes to extend the fatigue life of an operational structure. In this chapter, we illustrate the potential of multiplicative manufacturing via the LAU7 missile launcher housing. It is shown that applying SPD to the external surface of the LAU7 missile launcher housing, further reduces the peak stress at the critical location, in comparison to only adopting a shape optimization solution, by approximately 29%. This reduction in the stress field would enable the allowable crack size to be increased from 0.5. mm to approximately 2.14. mm and would effectively triple the time to the allowable crack size.

Original languageEnglish
Title of host publicationAircraft Sustainment and Repair
EditorsRhys Jones, Alan Baker, Neil Matthews, Victor Champagne
Place of PublicationOxford UK
PublisherElsevier
Chapter18
Pages931-938
Number of pages8
Edition1st
ISBN (Electronic)9780081005446
ISBN (Print)9780081005408
DOIs
Publication statusPublished - 2018

Keywords

  • Fatigue life extension
  • Multiplicative manufacturing
  • Shape optimization
  • SPD

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