Integration Of Strength and Process Modelling of Friction-Stir-Welded Fuselage Panels

Adrian Murphy, Mark Price, Richard Curran, P. Wang

Research output: Contribution to journalArticle

16 Citations (Scopus)
291 Downloads (Pure)

Abstract

In order to reduce potential uncertainties and conservatism in welded panel analysis procedures, understanding of the relationships between welding process parameters and static strength is required. The aim of this study is to determine and characterize the key process induced properties of advanced welding assembly methods on stiffened panel local buckling and collapse performance. To this end, an in-depth experimental and computational study of the static strength of a friction stir welded fuselage skin-stiffener panel subjected to compression loading has been undertaken. Four welding process effects, viz. the weld joint width, the width of the weld Heat Affected Zone, the strength of material within the weld Heat Affected Zone and the magnitude of welding induced residual stress, are investigated. A fractional factorial experiment design method (Taguchi) has been applied to identify the relative importance of each welding process effect and investigate effect interactions on both local skin buckling and crippling collapse performance. For the identified dominant welding process effects, parametric studies have been undertaken to identify critical welding process effect magnitudes and boundaries. The studies have shown that local skin buckling is principally influenced by the magnitude of welding induced residual stress and that the strength of material in the Heat Affected Zone and the magnitude of the welding induced residual stress have the greatest influence on crippling collapse behavior.


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Reaxys Database Information
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Original languageEnglish
Pages (from-to)159-176
Number of pages18
JournalJournal of Aerospace Computing, Information, and Communication
Volume3
Issue number4
DOIs
Publication statusPublished - Apr 2006
Event46th Structures, Structural Dynamics and Materials Conference - Houston, Texas, United States
Duration: 01 Apr 200501 Apr 2005

Bibliographical note

Originally presented as a conference paper at 46th Structures, Structural Dynamics and Materials Conference, April, 2005

ASJC Scopus subject areas

  • Aerospace Engineering
  • Computer Science(all)

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