Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical evaluation of welding residual stress of X80 pipeline steel under the influence of various welding process parameters
This work aims to improve the durability of the deep-sea transportation pipeline’s weld, prolong the pipeline’s service life, and ensure the safe and efficient operation of the transportation work. By analyzing the influence of welding parameters on the welding residual stress (WRS) of X80 pipeline steel, the welding process is improved to improve the durability of the welded joint. The WRS of the plate butt joint was measured by the hole-drilling method and X-ray diffraction method; the WRS of the pipe butt joint was measured by the hole-drilling method. The experimental results are compared with the numerical simulation results. The relationship between process parameters and welding residual stress is obtained by simulating WRS of flat plate and circular pipe butt joint under different welding process parameters. The results show that the experimental data measured by X-ray diffraction and the hole-drilling method agree with the results of numerical simulation. The WRS of the two plates decreases with the increase in welding speed and backing thickness, increasing with laminate thickness, welding line energy, and groove angle. The WRS value can be obtained by changing the butt plate welding process, and the WRS value of the tube can be inferred under the same condition.
We use ANSYS software to study the temperature field and stress field in the welding process based on the butt plate test. The welding process of pipeline steel is numerically simulated, and the numerical results are verified by the infrared thermal imager, X-ray diffractometer, and blind hole method.
The butt pipe test is used as the modeling prototype to study the temperature field and stress field in the welding process. The thermal-solid coupling calculation of the pipeline steel welding process verified the simulation results by the infrared thermal imager and the hole-drilling strain-gage method.
Finally, taking the welding speed, welding line energy, backing thickness, test plate thickness, and groove angle as variables, the changing trend of welding residual stress of the two models under different welding process parameters is studied. It can reduce the welding residual stress, prolong the service life of pipeline steel, reduce the cost and save resources.
Numerical evaluation of welding residual stress of X80 pipeline steel under the influence of various welding process parameters
This work aims to improve the durability of the deep-sea transportation pipeline’s weld, prolong the pipeline’s service life, and ensure the safe and efficient operation of the transportation work. By analyzing the influence of welding parameters on the welding residual stress (WRS) of X80 pipeline steel, the welding process is improved to improve the durability of the welded joint. The WRS of the plate butt joint was measured by the hole-drilling method and X-ray diffraction method; the WRS of the pipe butt joint was measured by the hole-drilling method. The experimental results are compared with the numerical simulation results. The relationship between process parameters and welding residual stress is obtained by simulating WRS of flat plate and circular pipe butt joint under different welding process parameters. The results show that the experimental data measured by X-ray diffraction and the hole-drilling method agree with the results of numerical simulation. The WRS of the two plates decreases with the increase in welding speed and backing thickness, increasing with laminate thickness, welding line energy, and groove angle. The WRS value can be obtained by changing the butt plate welding process, and the WRS value of the tube can be inferred under the same condition.
We use ANSYS software to study the temperature field and stress field in the welding process based on the butt plate test. The welding process of pipeline steel is numerically simulated, and the numerical results are verified by the infrared thermal imager, X-ray diffractometer, and blind hole method.
The butt pipe test is used as the modeling prototype to study the temperature field and stress field in the welding process. The thermal-solid coupling calculation of the pipeline steel welding process verified the simulation results by the infrared thermal imager and the hole-drilling strain-gage method.
Finally, taking the welding speed, welding line energy, backing thickness, test plate thickness, and groove angle as variables, the changing trend of welding residual stress of the two models under different welding process parameters is studied. It can reduce the welding residual stress, prolong the service life of pipeline steel, reduce the cost and save resources.
Numerical evaluation of welding residual stress of X80 pipeline steel under the influence of various welding process parameters
Li, Yuyang (Autor:in) / Zhang, Heng (Autor:in) / Zhu, Wei (Autor:in) / Cheng, Yangrui (Autor:in) / Ma, Wenbo (Autor:in)
Marine Georesources & Geotechnology ; 41 ; 1092-1103
03.10.2023
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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