Dynamic Creep of Low Carbon Steel at Elevated Temperature as Related with the Residual Stresses Retained after Dynamic Creep under Combined Stresses of Static Tension and Alternating Bending

Induced residual stresses on AISI 1020 low carbon steel plate during Tungsten Inert Gas (TIG) welding process was evaluated in this study using experimental and Finite Element Method (FEM). The temperature range measured from the welding experimentation was 251°C-423°C, while the temperature range measured from the FEM was 230°C-563°C; whereas, the residual stress range measured from the welding experimentation was 144MPa-402Mpa, while the residual range measured from the FEM was 233-477MPa respectively. Comparing the temperature and stress results obtained from both methods, it was observed that the range of temperature and residual stresses measured were not exactly the same due to the principles at which both methods operate but disparities between the methods were not outrageous. However, these values can be fed back to optimization tools to obtain optimal parameters for best practices. Results of the induced stress distribution was created from a static study where the thermal results were used as loading conditions and it was observed that the temperature increased as the von-Mises stress increased, indicating that induced stresses in welded component may hamper the longevity of such component in service condition. Hence, post-weld heat treatment is imperative in order to stress relieve metals after welding operation and improve their service life.

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Influence of Pause in Stress Alternation on the Fatigue of a Low Carbon Steel at Elevated Temperature

Transactions of the Japan Society of Mechanical Engineers ◽

10.1299/kikai1938.25.1070 ◽

1959 ◽

Vol 25 (159) ◽

pp. 1070-1074 ◽

Cited By ~ 1

Author(s):

Shuji TAIRA ◽

Yasunori MURAKAMI ◽

Ryoichi KOTERAZAWA

Keyword(s):

Elevated Temperature ◽

Carbon Steel ◽

Low Carbon Steel ◽

Low Carbon

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Neutron Diffraction Measurement of Residual Stresses in Electron Beam Welded Low Carbon Steel

10.7546/crabs.2020.04.05 ◽

2020 ◽

Author(s):

Darina Kaisheva ◽

Gizo Bokuchava ◽

Igor Papushkin ◽

Peter Petrov

Keyword(s):

Electron Beam ◽

Carbon Steel ◽

Neutron Diffraction ◽

Residual Stresses ◽

Low Carbon Steel ◽

Diffraction Measurement ◽

Low Carbon ◽

Neutron Diffraction Measurement

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Oxidation Behavior of Low Carbon Steel at Elevated Temperature in Oxygen and Water Vapor

steel research international ◽

10.1002/srin.201300039 ◽

2013 ◽

Vol 84 (12) ◽

pp. 1252-1257 ◽

Cited By ~ 4

Author(s):

Jung-Yeul Yun ◽

Sang-An Ha ◽

Chang-Yong Kang ◽

Jei-Pil Wang

Keyword(s):

Water Vapor ◽

Elevated Temperature ◽

Carbon Steel ◽

Oxidation Behavior ◽

Low Carbon Steel ◽

Low Carbon

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FEA of Residual Stresses in Butt Welded Type Low Carbon Steel Using MMAW Technique

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.110-116.2686 ◽

2011 ◽

Vol 110-116 ◽

pp. 2686-2692

Author(s):

Gurinder Singh Brar ◽

Gurdeep Singh

Keyword(s):

Finite Element Method ◽

Residual Stress ◽

Finite Element ◽

Carbon Steel ◽

Residual Stresses ◽

Low Carbon Steel ◽

Pressure Vessels ◽

Transient Temperature ◽

Low Carbon ◽

Element Method

Welding is a reliable and efficient joining process in which the coalescence of metals is achieved by fusion. Welding is widely employed in diverse structures such as ships, aircraft, marine structures, bridges, ground vehicles, pipelines and pressure vessels. When two dissimilar plates are joined by welding process, a very complex thermal cycle is applied to the weldment, which further causes inhomogeneous plastic deformation and residual stress in and around fusion zone and heat affected zone (HAZ). Presence of residual stresses may be beneficial or harmful for the structural components depending on the nature and magnitude of residual stresses. In this study, a finite element analysis has been carried out to analyze the thermo-mechanical behaviour and effect of residual stress state in butt-welded in low carbon steel plates. A coupled thermal mechanical three dimension finite element model was developed. Finite element method based software SolidWorks Simulation, was then used to evaluate transient temperature and residual stress during butt welding of two plates. Plate thickness of 8 mm were used which are normally joined by multi-pass operation by Manual Metal Arc Welding (MMAW) process. During each pass, attained peak temperature and variation of residual stresses in plates has also been studied. The results obtained by finite element method agree well with those from X-ray diffraction method as published by Murugan et al. for the prediction of residual stresses.

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