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- Title
Investigations on Transient Temperature Distribution and Distortion in Shielded Metal Arc Welding of SA 516 Gr. 70 Steel.
- Authors
Sojitriya, Kalpeshkumar M.; Kalyankar, V. D.; Champaneria, K. V.; Chudasama, G. P.
- Abstract
Efforts are made in this article to investigate the thermal and mechanical phenomena by presenting a coupled thermal and structural analysis of SA516 Grade-70 steel. This material has wide applicability in the fabrication of pressure vessels, boilers, etc., due to its excellent weldability and formability. An actual ongoing problem from a reputed industry, related to distortion during the shielded metal arc welding process, is considered and experiments are carried out on the chosen steel. Results are evaluated employing a twostep methodology, involving simulation. The first step encompasses thermal analysis, providing insights into transient temperature distribution, while the subsequent mechanical analysis offers data on residual stresses and distortion. In the case of heat input, a volumetric heat source with double ellipsoidal heat distribution is used whereas a plasticity material model with rate-independent bilinear kinematic hardening is adopted for the structural analysis. Additionally, temperature-dependent material properties are factored into both scenarios. The data derived from numerical analysis align closely with experimental findings, presenting valuable insights for fabricating industries.
- Subjects
SHIELDED metal arc welding; TEMPERATURE distribution; MATERIAL plasticity; OTOACOUSTIC emissions; STEEL; PRESSURE vessels
- Publication
Indian Welding Journal, 2024, Vol 57, Issue 1, p56
- ISSN
0046-9092
- Publication type
Article
- DOI
10.22486/iwj.v57i1.223728