The determination of residual stress in extruded Ti-6Al-4V by contour method and finite element analysis

Pollard, J.D. and Rahimi, S. and Watford, A. and Jackson, M. and Wynne, B.P.; Venkatesh, Vasisht and Pilchak, Adam L. and Allison, John E. and Ankem, Sreeramamurthy and Boyer, Rodney and Christodoulou, Julie and Fraser, Hamish L. and Ashraf Imam, M. and Kosaka, Yoji and Rack, Henry J. and Chatterjee, Amit and Woodfield, Andy, eds. (2016) The determination of residual stress in extruded Ti-6Al-4V by contour method and finite element analysis. In: Proceedings of the 13th World Conference on Titanium. Wiley, USA, pp. 305-310. ISBN 9781119293668 (https://doi.org/10.1002/9781119296126.ch46)

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Abstract

The contour method has been used to assess the level of residual stress generated during the post extrusion air cool and water quenching of a Ti-6Al-4V extruded bar. A length of the extrudate was transversally sectioned using electrical discharge machining (EDM), resulting in minimal damage to the cut surface; the stress relieved profile present at the cut surface was then measured using a coordinate measuring machine (CMM). The cut section was recreated in an ABAQUS finite element (FE) model and the inverse of the stress relieved profile recorded by CMM was applied as a boundary condition; by forcing the model’s surface topology to match the measured cut surface, residual stresses normal, i.e. longitudinal stresses, to the cut surface of the extruded profile were then calculated. Results were compared to air cooling and quenching simulations performed in the DEFORM FE package. The distribution of tensile and compressive residual stresses observed via experimental and simulation work were found to be a good match with the distribution correlating with local variations of cooling rate during quenching.

ORCID iDs

Pollard, J.D., Rahimi, S. ORCID logoORCID: https://orcid.org/0000-0001-6461-988X, Watford, A., Jackson, M. and Wynne, B.P.; Venkatesh, Vasisht, Pilchak, Adam L., Allison, John E., Ankem, Sreeramamurthy, Boyer, Rodney, Christodoulou, Julie, Fraser, Hamish L., Ashraf Imam, M., Kosaka, Yoji, Rack, Henry J., Chatterjee, Amit and Woodfield, Andy
  • Item type:Book Section
    ID code:57362
    Dates:
    Date
    Event
    6 May 2016
    Published
    15 May 2015
    Accepted
    Notes:This is the peer reviewed version of the following article: Pollard, J.D., Rahimi, S., Watford, A., Jackson, M. and Wynne, B.P. (2016) The Determination of Residual Stress in Extruded Ti-6Al-4V by Contour Method and Finite Element Analysis, in Proceedings of the 13th World Conference on Titanium (eds V. Venkatesh, A. L. Pilchak, J. E. Allison, S. Ankem, R. Boyer, J. Christodoulou, H. L. Fraser, M. A. Imam, Y. Kosaka, H. J. Rack, A. Chatterjee and A. Woodfield), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781119296126.ch46, which has been published in final form at http://dx.doi.org/10.1002/9781119296126.ch46. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    Subjects:Technology > Engineering (General). Civil engineering (General) > Engineering design
    Department:Faculty of Engineering > Design, Manufacture and Engineering Management
    Depositing user: Pure Administrator
    Date deposited:10 Aug 2016 15:36
    Last modified:11 Nov 2024 15:06
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/57362
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