A multipass thick welded specimen restrained by three saddle-shape plates welded to the bottom surface was prepared and treated using the post-weld ultrasonic impact treatment (UIT). The stresses in the specimen were measured and analysed. Results show that the as-welded stresses on the top surface of the restrained specimen do not drop quickly beyond the weld zone as compared with the typical welding stress distributions in thick unrestrained specimens. The UIT induces compressive stresses with a depth up to 2–4 mm and it has little effect on the as-welded stresses outside of the UIT-treated region. The welding of restraining plates causes a significant increase of the longitudinal stress within the local welding region.
JamesMN.Residual stress influences on structural reliability. Eng Failure Anal. 2011; 18(8):1909–1920. doi: 10.1016/j.engfailanal.2011.06.005
2.
SchroepferD, KannengiesserT.Correlating welding reaction stresses and weld process conditions for high-strength steel S960QL. Weld World. 2014; 58(3):423–432. doi: 10.1007/s40194-014-0127-x
3.
ParadowskaAM, PriceJWH, IbrahimR, The effects of restraint and post-weld heat treatment on residual stress distribution in a bead-on-plate weld. J Neutron Res. 2007; 15(3-4):231–241. doi: 10.1080/10238160802442520
4.
LiuC, ZhangJX.Investigation of external restraining force effects on welding residual stresses using three-dimensional thermal elastic-plastic multi-body coupling finite element model. Proc Inst Mech Eng Part B. 2009; 223(12):1591–1600. doi: 10.1243/09544054JEM1548
5.
LeggattRH.Residual stresses in welded structures. Int J Pressure Vessels Piping. 2008; 85(3):144–151. doi: 10.1016/j.ijpvp.2007.10.004
6.
HuangCC, ChuangTH.Effects of post-weld heat treatments on the residual stress and mechanical properties of laser beam welded sae 4130 steel plates. Mater Manuf Processes. 1997; 12(5):779–797. doi: 10.1080/10426919708935184
7.
HeBL, DengHP, JiangMM, Effect of ultrasonic impact treatment on the ultra high cycle fatigue properties of SMA490BW steel welded joints. Int J Adv Manuf Technol. 2018; 96(5-8):1571–1577. doi: 10.1007/s00170-017-0608-3
8.
LiuC, GeQL, ChenDJ, Residual stress variation in a thick welded joint after ultrasonic impact treatment. Sci Technol Weld Join. 2016; 21(4):624–631. doi: 10.1080/13621718.2016.1149932
9.
AbdullahA, MalakiM, EskandariA.Strength enhancement of the welded structures by ultrasonic peening. Mater Des. 2012; 38:7–18. doi: 10.1016/j.matdes.2012.01.040
10.
WithersPJ, BhadeshiaHKDH.Residual stress. part 1 – measurement techniques. Mater Sci Technol. 2001; 17(4):355–365. doi: 10.1179/026708301101509980
11.
MuránskyO, HosseinzadehF, HamelinCJ, Investigating optimal cutting configurations for the contour method of weld residual stress measurement. Int J Pressure Vessels Piping. 2018; 164:55–67. doi: 10.1016/j.ijpvp.2017.04.006
12.
PrimeMB.Cross-sectional mapping of residual stresses by measuring the surface contour after a cut. J Eng Mater Technol. 2001; 123(2):162–168. doi: 10.1115/1.1345526
13.
ASTM International. Standard test method for determining residual stresses by the hole-drilling strain gage method. 2010; ASTM E837-08, West Conshohocken, PA, United States.
14.
ZhangJX, XueY, GongSL.Residual welding stresses in laser beam and tungsten inert gas weldments of titanium alloy. Sci Technol Weld Join. 2005; 10(6):643–646. doi: 10.1179/174329305X48374
15.
PagliaroP, PrimeMB, SwensonH, Measuring multiple residual-stress components using the contour method and multiple cuts. Exp Mech. 2010; 50(2):187–194. doi: 10.1007/s11340-009-9280-3
16.
LiuC, WangCJ, ChengXH, Experimental investigation on the residual stresses in a thick joint with a partial repair weld using multiple-cut contour method. Materials. 2018; 11:633. doi: 10.3390/ma11040633
17.
TraoreY, BouchardPJ, FrancisJA, A novel cutting strategy for reducing plasticity induced errors in residual stress measurements made with the contour method. Proceedings of the ASME 2011 pressure vessels & piping division conference (PVP2011); 2011 July 17–21, Baltimore, MD, USA.
18.
HosseinzadehF, BouchardPJ.Mapping multiple components of the residual stress tensor in a large P91 steel pipe girth weld using a single contour cut. Exp Mech. 2013; 53(2):171–181. doi: 10.1007/s11340-012-9627-z
19.
VasantharajaP, MaduarimuthuV, VasudevanM, Assessment of residual stresses and distortion in stainless steel weld joints. Mater Manuf Processes. 2012; 27(12):1376–1381. doi: 10.1080/10426914.2012.663135
20.
WooW, AnGB, EmVT, Through-thickness distributions of residual stresses in an 80 mm thick weld using neutron diffraction and contour method. J Mater Sci. 2015; 50(2):784–793. doi: 10.1007/s10853-014-8638-9
21.
GadallahR, TsutsumiS, HiraokaK, Prediction of residual stresses induced by low transformation temperature weld wires and its validation using the contour method. Mar Struct. 2015; 44:232–253. doi: 10.1016/j.marstruc.2015.10.002
