Benchmark measurement of residual stresses in a 7449 aluminium alloy using deep-hole and incremental centre-hole drilling methods

S Hossain, CE Truman, DJ Smith

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

2 Citations (Scopus)

Abstract

Residual stress measurements using non-destructive techniques including neutron diffraction and X-ray diffraction are dependent on assumptions made in the analysis. For example, the different stress free reference sample and the presence of precipitates in a material can influence the measured results. Previous residual stress measurement using neutron diffraction technique in a quenched aluminium block revealed that the result can be influenced by the choice of the stress free reference sample. A benchmark method is therefore essential to validate the different measurement techniques. In this paper, the deep-hole drilling technique was used first as a benchmark technique to validate (1) the measured residual stresses in a water quenched 7449 aluminium alloy block using the neutron diffraction technique, and (2) residual stresses measured using the layer removal technique in a 7449 aluminium plate which was water quenched followed by stretching. Second, the incremental centre-hole drilling technique was used to validate the near surface residual stresses in an aluminium strip measured using the X-ray diffraction technique. The excellent correlations with the benchmark measurement methods validated the different results.
Translated title of the contributionBenchmark measurement of residual stresses in a 7449 aluminium alloy using deep-hole and incremental centre-hole drilling methods
Original languageEnglish
Title of host publicationEngineering Applications of Residual Stress, Volume 8, Proceedings of the 2011 Annual Conference on Experimental and Applied Mechanics
EditorsTom Proulx
PublisherSpringer, New York, NY
Pages67 - 74
Number of pages8
Volume8
ISBN (Print)9781461402244
Publication statusPublished - 2011

Fingerprint Dive into the research topics of 'Benchmark measurement of residual stresses in a 7449 aluminium alloy using deep-hole and incremental centre-hole drilling methods'. Together they form a unique fingerprint.

  • Cite this

    Hossain, S., Truman, CE., & Smith, DJ. (2011). Benchmark measurement of residual stresses in a 7449 aluminium alloy using deep-hole and incremental centre-hole drilling methods. In T. Proulx (Ed.), Engineering Applications of Residual Stress, Volume 8, Proceedings of the 2011 Annual Conference on Experimental and Applied Mechanics (Vol. 8, pp. 67 - 74). Springer, New York, NY.