Assessment of Metallurgical and Mechanical Properties of Welded Joints via Numerical Simulation and Experiments

Ferro, Paolo

doi:10.3390/ma15103694

Materials

2022

DOI: 10.3390/ma15103694

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Assessment of Metallurgical and Mechanical Properties of Welded Joints via Numerical Simulation and Experiments

Paolo Ferro

Abstract: Welding has been the most important joining technique applied to metallic materials since the early twentieth century when arc welding was introduced [...]

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2024

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Welding residual stress analysis of the X80 pipeline: simulation and validation

Huang,

Li,

Wang

et al. 2024

Mech. Sci.

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Abstract. In this work, a finite-element welding model of the X80 pipeline is established, and the residual stress is calculated using a direct thermal–mechanical coupling method through the User Material (UMAT) subroutine of the double-ellipsoid moving heat source. The effects of process parameters on the welding residual stress of the X80 pipelines are discussed. The ultrasonic longitudinal critical refraction (LCR) wave-detecting method is adopted to verify the simulation results. The results show that the residual stress at the inner surface is higher than that at the outer surface, and the peak Mises stress at the welding seam approaches the yield stress. With the increase in welding groove angle and heat input, the peak Mises stress increases at the inner surface and decreases at the outer surface, but the high-stress zone at the outer surface broadens. The residual stresses at the outer surface are more sensitive to the welding parameters. The comparison between the simulated results and ultrasonic LCR detection indicates that the finite-element method is feasible, and the simulation results are credible.

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Welding residual stress analysis of the X80 pipeline: simulation and validation

Huang,

Li,

Wang

et al. 2024

Mech. Sci.

View full text Add to dashboard Cite

show abstract

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Assessment of Metallurgical and Mechanical Properties of Welded Joints via Numerical Simulation and Experiments

Abstract: Welding has been the most important joining technique applied to metallic materials since the early twentieth century when arc welding was introduced [...]

Cited by 1 publication

References 13 publications

Welding residual stress analysis of the X80 pipeline: simulation and validation

Welding residual stress analysis of the X80 pipeline: simulation and validation

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