EXPERIMENTAL DETERMINATION OF RESIDUAL STRESSES IN MULTI-PASS GIRTH WELDING OF THERMO-MECHANICAL STEEL PIPE

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SABOKROUH M.; HASHEMI S.H.; FARAHANI M.R.

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Paper Information

Journal: Journal of Applied and Computational Sciences in Mechanics Year:2014 | Volume:25 | Issue:2 (10) Page(s): 111-120

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Title

EXPERIMENTAL DETERMINATION OF RESIDUAL STRESSES IN MULTI-PASS GIRTH WELDING OF THERMO-MECHANICAL STEEL PIPE

Author(s)

SABOKROUH M. | HASHEMI S.H. | FARAHANI M.R. | Issue Writer Certificate

Keywords

RESIDUAL STRESSQ2

MULTI-PASS GIRTH WELDQ2

THERMOMECHANICAL STEEL PIPEQ1

NATURAL GAS TRANSMISSIONQ1

HOLE DRILLINGQ1

API X70Q1

Abstract

In this paper, two API X70 steel pipes (with spiral seam weld) of 56 inch outside diameter and 0.780 inch wall thickness were girth welded first. Next, HOLE DRILLING tests were conducted for strain measurement on the surfaces of the pipes. The values of RESIDUAL STRESSes on the internal and external surfaces of the pipe were determined, from strain data using ASTM 837 standard. The experimental data showed that the maximum tensile RESIDUAL STRESS (318MPa) was located on the centre line of the weld gap on the pipe outer surface alongside with the pipe hoop direction. Moreover, the maximum compressive (hoop and axial) RESIDUAL STRESSes (137MPa) occurred on the pipe inner surface at 30mm from the centre line of the weld gap.

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APA: Copy

SABOKROUH, M., HASHEMI, S.H., & FARAHANI, M.R.. (2014). EXPERIMENTAL DETERMINATION OF RESIDUAL STRESSES IN MULTI-PASS GIRTH WELDING OF THERMO-MECHANICAL STEEL PIPE. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 25(2 (10)), 111-120. SID. https://sid.ir/paper/196215/en

Vancouver: Copy

SABOKROUH M., HASHEMI S.H., FARAHANI M.R.. EXPERIMENTAL DETERMINATION OF RESIDUAL STRESSES IN MULTI-PASS GIRTH WELDING OF THERMO-MECHANICAL STEEL PIPE. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2014;25(2 (10)):111-120. Available from: https://sid.ir/paper/196215/en

IEEE: Copy

M. SABOKROUH, S.H. HASHEMI, and M.R. FARAHANI, “EXPERIMENTAL DETERMINATION OF RESIDUAL STRESSES IN MULTI-PASS GIRTH WELDING OF THERMO-MECHANICAL STEEL PIPE,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 25, no. 2 (10), pp. 111–120, 2014, [Online]. Available: https://sid.ir/paper/196215/en

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