Prediction of a transverse shrinkage of butt welded joints in shipyard conditions using the design of experimental approach

Urbański, Tomasz; Taczała, Maciej

doi:10.1016/j.ijnaoe.2020.07.001

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…Initial imperfections [23,24] are among the most critical parameters that govern the ultimate strength of stiffened plates. Thus, these were measured using the photogrammetry technique [25].…”

Section: Fe Analysismentioning

confidence: 99%

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

Woloszyk

Garbatov

Kowalski

et al. 2020

Polish Maritime Research

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The objective of this study is to analyse the behaviour of compressed stiffened plates of different slenderness using experimental and numerical methods. The presented results are part of a long-term project to investigate the ultimate strength of geometrically imperfect structures subjected to different degradation phenomena, including corrosion degradation and locked cracks. Several specimens were subjected to a uniaxial compressive force, and the most important quantities related to the structural behaviour were captured and analysed. A finite element model, accounting for material and geometrical nonlinearities and initial geometrical imperfections, was developed using the commercial software ANSYS. The residual welding-induced stresses were measured in the middle cross-section for two specimens. The initial imperfection was identified by employing a close-range photogrammetry approach. It was concluded that the numerical analyses, based on the finite element model, predict the ultimate strength of stiffened plates accurately, although some deviations were also observed. The detailed analysis with the indication of possible uncertainty is presented, and several conclusions are derived.

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Section: Fe Analysismentioning

confidence: 99%

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

Woloszyk

Garbatov

Kowalski

et al. 2020

Polish Maritime Research

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Influence of submerged arc welding process parameters and metallurgical behaviour in a thick carbon steel section for boiler application

Reddy,

Hudgikar

2024

Materialwissenschaft Werkst

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The aim of the research is to investigate the weldability of thick sections of carbon steel using submerged arc welding with varying process parameters. The experimental design for joining thick carbon steel involves manipulating input weld process parameters such as current (A), voltage (V), weld speed (mm/h), and weld electrode diameter (mm). The quality of the weld material is assessed based on transformations in microstructure, weld hardness measured by Brinell hardness number, and tensile strength (MPa). It is crucial to note that the grain structure and metallurgical behavior of other hard materials may differ significantly. The presence of carbon in the ferrite phase has led to the formation of bainite, martensite, and composites of martensite and austenite within the weld zone, as confirmed by high‐resolution microscopy. The weldment‘s hardness has increased from 242.5 HV 30 in the base metal to 316.4 HV 30 in the weldment due to metallurgical alterations in the microstructure. Weld energy input emerges as the primary factor influencing weld quality. With increasing weld current and voltage, there is a corresponding increase in the joined metal, resulting in improved characteristics in the weld structure, particularly at maximal energy input and welding speed. In the context of boiler applications, understanding the weldability of thick carbon steel sections is paramount for ensuring structural integrity and longevity under high‐temperature and high‐pressure conditions. The optimized welding parameters identified in this study can contribute to enhancing the reliability and performance of boilers, thereby promoting safety and efficiency in industrial settings.

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Investigation on Carbon Steel Weldment and its Corrosion Behaviour

Veeram,

K. Hudgikar

2024

High Temperature Corrosion of mater.

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Prediction of a transverse shrinkage of butt welded joints in shipyard conditions using the design of experimental approach

Cited by 5 publications

References 20 publications

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

Experimental and Numerical Investigations of Ultimate Strength of Imperfect Stiffened Plates of Different Slenderness

Influence of submerged arc welding process parameters and metallurgical behaviour in a thick carbon steel section for boiler application

Investigation on Carbon Steel Weldment and its Corrosion Behaviour

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