Residual Stresses Distribution Measured by Neutron Diffraction in Fabricated Square High Strength Steel Tubes

Abstract:

Engineers are increasingly encouraged to consider sustainability in the design and construction of new civil engineering infrastructure. Sustainability can be achieved through the use of high strength materials thereby reducing quantity of materials required in construction where possible. Knowledge of residual stresses in fabricated columns is important in identifying whether the fabricated columns can be classified as heavily welded (HW) or lightly welded (LW). The determination of residual stresses can be used to determine the local buckling of stub columns. Residual stress magnitudes are also essential in the numerical modelling of buckling behaviour of columns. This paper outlines the challenges in measurement of residual stresses using neutron diffraction in fabricated high strength steel square tubes. The residual stress line scans and maps were measured using the Kowari Strain Scanner located at the Australian Nuclear and Science Organisation (ANSTO) in Australia.

• Periodical: Materials Science Forum (Volume 777)
• Pages: 249-254
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.777.249
• Online since: February 2014
• Authors: Fidelis R. Mashiri, Anna M. Paradowska, Brian Uy, Zhong Tao, Mahbub Khan, Pranesh Dayal
• Keywords: High Strength Steel (HSS), Neutron Diffraction, Residual Strain/Stress

References

[1] Green Building Council of Australia Green star overview, April, (2009) (URL:www.gbca.org.au)

[2] Uy, B. Strength of short concrete filled steel box columns incorporating local buckling, Journal of Structural Engineering, ASCE, 126 (3), (2000) 341-352.

DOI: 10.1061/(asce)0733-9445(2000)126:3(341)

[3] Uy, B. Local and post-local buckling of fabricated thin-walled steel and steel-concrete composite sections, Journal of Structural Engineering, ASCE, 127 (6), (2001) 666-677.

DOI: 10.1061/(asce)0733-9445(2001)127:6(666)

[4] Mashiri F.R., Uy B. and Shah B. Stub column tests of concrete-filled VHS-plate fabricated sections", Proceedings of the 4th International Conference on Steel & Composite Structures, Wednesday 21 – Friday 23 July 2010, Sydney, Australia, (2010) 245-250.

DOI: 10.3850/978-981-08-6218-3_cc-th021

[5] Kirstein O. (2008), Kowari-OPAL's residual stress diffractometer and its application to material science and engineering, Advanced Materials Research 41-42 (2008) 439-444

DOI: 10.4028/www.scientific.net/amr.41-42.439

[6] James J. A., Santisteban J. R., Edwards L., and Daymond M. R.: "A virtual laboratory for neutron and synchrotron strain scanning", Physica B: Condensed Matter, 350 (1–3), (2004) E743-E746.

DOI: 10.1016/j.physb.2004.03.194

[7] Khan M., Uy B., Tao Z. And Mashiri F. Concentrically Loaded Short High Strength Composite Columns, The Pacific Structural Steel Conference (PSSC 2013), Singapore, 8-11 October 2013.

DOI: 10.3850/978-981-07-7137-9_244