Davies, C.M. ; Wimpory, R.C. ; Dye, D. ; Nikbin, K.M.: The effects of plate dimensions on residual stresses in welded thin steel plates. In: Proceedings of PVP2008 ASME Pressure Vessels and Piping Division Conference July 27-31, 2008, Chicago, Illinois, USA [Ausg. auf CD], 2008, p. 1-9
Abstract:
Residual stress distributions have been measured on thin (4 mm thick) plates made from a ferritic steel designated grade DH-36 using the neutron diffraction technique. The welded specimens include two large (1 m × 1 m) butt welded plates, onto one fillet welded stiffeners were also added, and a smaller (0.5 m × 0.5 m) fillet welded stiffened plates. The large butt and fillet welded stiffened plate has also been cut to smaller dimensions and the strain relaxation due to cutting quantified by strain gauges. The residual stress distributions have been re-measured after specimen cutting and the relaxation quantities compared to the strain gauge values. The influence of specimen size is also examined by comparing measurements at the base of the fillet welds in the large and smaller plates. The results are interpreted to identify plate size effects on the residual stress levels of the welds.