Paper Title:
The Study of Residual Stress in Welded Specimens of Aluminium Alloy by Using Acoustic Emission Method
  Abstract

Welding is one of the most significant causes of residual stresses and typically produces large tensile stresses whose maximum value can be approximately equal to the yield strength of the materials being joined. These large tensile stresses are often responsible for premature component failure. Metallurgical welding joints are extensively used in the fabrication industry, including ships, offshore structures, steel bridge, and pressure vessels. In this study, residual stresses in welded specimens of AL–6061 were evaluated by using ACOUSTIC EMISSION method which is one of the nondestructive tests. In this work, AE signals formed during the tensile test of welded specimens were investigated. The results show that AE signals in specimens which have large amount of residual stress were detected in less load.

  Info
Periodical
Chapter
Chapter 18: Joining Processes
Edited by
Wu Fan
Pages
3617-3623
DOI
10.4028/www.scientific.net/AMM.110-116.3617
Citation
Z. Saeidi Nia , M. Ahmadi Najaf Abadi, D. Jawabvar, "The Study of Residual Stress in Welded Specimens of Aluminium Alloy by Using Acoustic Emission Method", Applied Mechanics and Materials, Vols. 110-116, pp. 3617-3623, 2012
Online since
October 2011
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Price
$32.00
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