Acta Mechanica Slovaca 2023, 27(3):28-40 | DOI: 10.21496/ams.2023.026

Effects of Welding Sequences on Residual Stresses in a Butt Joint of Austenitic Piping

Chouaib Zeghida ORCID...1, Abdelmoumene Guedri ORCID...1
Infra-Res Laboratory, Department of Mechanical Engineering, University of Souk Ahras, Souk Ahras, Algeria

This study aimed to investigate the effects of welding sequences on residual stresses and distortions of welded components, using computational thermomechanical model-based finite element analysis (FEA). Residual stresses, a common outcome of welding, can cause material distortions and reduce product quality. We used FEA to simulate transient temperature fields generated during welding and evaluated their impact on the amplitude and distribution of residual stresses, the size of fusion and heat-affected zones, material microstructures, properties and fracture toughness. The study focused on an austenitic pipe butt junction, a commonly welded component in various industries. The identification of optimal welding sequences can minimize residual stresses and distortions, providing valuable insights for the development of efficient welding techniques, improved product quality, and reduced manufacturing costs.

Keywords: Welding sequences, Residual stresses, Distortions, Finite element analysis, Austenitic piping.

Received: May 15, 2023; Revised: June 15, 2023; Accepted: June 21, 2023; Published: September 18, 2023  Show citation

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Zeghida, C., & Guedri, A. (2023). Effects of Welding Sequences on Residual Stresses in a Butt Joint of Austenitic Piping. Acta Mechanica Slovaca, 27(3), 28-40. doi: 10.21496/ams.2023.026
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