caa a22 4500 606172866 CHVBK 20210128100730.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10921-015-0301-0 doi (NATIONALLICENCE)springer-10.1007/s10921-015-0301-0 Effect of Heat Input Ratio on Residual Stress in Multipass Welding Using Finite Element Method and Ultrasonic Stress Measurement [Elektronische Daten] [Vahid Shokri, Seyedali Sadeghi, Mohammad Sadeghi, Yashar Javadi] The presence of residual stresses in components, particularly in those operating in high temperature, can lead to cracking and reduction of fatigue life. The present work is an attempt to study the effect of heat input ratio of multipass welding on the residual stresses. Firstly, the ultrasonic stress measurement technique is carried out in the weldment using specific welding parameters. The stress measurement conducted by ultrasonic method utilizes longitudinal critically refracted waves which are basically promoted parallel to the surface of material at certain depth. Moreover, the hole drilling method is utilized so as to validate the results of ultrasonic method. The finite element analysis is then carried out for the same welding condition so that the residual stress obtained by FEM could be compared and verified with those extracted from ultrasonic method. The different finite element analyses employing different heat input ratios are conducted in the 15Mo3 high strength low alloy steel while two different interpass time are considered. Finally, it has been concluded that heat input of the second pass has significant effect on longitudinal residual stress peak while heat input of the first pass is not much influential on residual stress magnitude if long interpass time is considered. On the other hand, when the second pass is deposited immediately after the first pass, the heat input ratio can be used as a criteria for evaluation of the maximum residual stress. Springer Science+Business Media New York, 2015 Two-pass bead on plate welding nationallicence Ultrasonic stress measurement nationallicence Acoustoelasticity nationallicence Hole drilling nationallicence Finite element method nationallicence Residual stress measurement nationallicence Shokri Vahid Department of Mechanical Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, 14115-111, Tehran, Iran aut Sadeghi Seyedali Department of Mechanical Engineering, Amirkabir University of Technology, 424 Hafez Ave, 15914, Tehran, Iran aut Sadeghi Mohammad Department of Mechanical Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, 14115-111, Tehran, Iran aut Javadi Yashar Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Km 5 of Damghan Street, Damghan, Iran aut Journal of Nondestructive Evaluation Springer US; http://www.springer-ny.com 34/3(2015-09-01), 1-13 0195-9298 34:3<1 2015 34 10921 https://doi.org/10.1007/s10921-015-0301-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10921-015-0301-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shokri Vahid Department of Mechanical Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, 14115-111, Tehran, Iran aut NATIONALLICENCE 700 1- Sadeghi Seyedali Department of Mechanical Engineering, Amirkabir University of Technology, 424 Hafez Ave, 15914, Tehran, Iran aut NATIONALLICENCE 700 1- Sadeghi Mohammad Department of Mechanical Engineering, Tarbiat Modares University, Jalal Ale Ahmad Highway, 14115-111, Tehran, Iran aut NATIONALLICENCE 700 1- Javadi Yashar Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Km 5 of Damghan Street, Damghan, Iran aut NATIONALLICENCE 773 0- Journal of Nondestructive Evaluation Springer US; http://www.springer-ny.com 34/3(2015-09-01), 1-13 0195-9298 34:3<1 2015 34 10921