Numerical Analysis of Longitudinal Residual Stresses and Deflections in a T-joint Welded Structure Using a Local Preheating Technique

Perić, Mato; Garašić, Ivica; Nižetić, Sandro; Dedić-Jandrek, Hrvoje

doi:10.3390/en11123487

Cited by 17 publications

(8 citation statements)

References 33 publications

(44 reference statements)

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“…Beam extension can bring about additional effects, such as stress and post welding strain [ 26 , 27 , 28 , 29 , 30 ]— Figure 6 b. Welding begins in point B1. When the bottom part of the section heats up due to welding, deflection increases up to B2.…”

Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Szewczyk

Szumigała

2021

Materials

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This paper presents results of numerical analysis and experimental research on strengthening of steel–concrete composite beams. Studied members consisted of IPE200 I-beam and 90 × 700 mm reinforced concrete slab. The steel part of the section was strengthened by welding additional steel plates at the bottom. The study was performed for plate thickness ranging between 6 to 22 mm. Spatial FEM models were developed to account for material and geometric nonlinearities and for stress and post-welding strain. Proposed numerical models were experimentally validated. One aim was to find an optimum solution which would minimize cost and maximize bending capacity. To achieve this, energy parameters available in numerical simulations were reviewed and analyzed. Recoverable strain energy value determined in Abaqus was used to find the optimum solution.

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Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Szewczyk

Szumigała

2021

Materials

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“…Other applications of inverse heat conduction algorithms in the monitoring and optimisation of the heating rate of pressure components of steam boilers are presented in [49] dealing with the thermal stresses in the pipes and in [50] focusing on thick-wall components. Perić et al [51] performed a numerical analysis of longitudinal residual stresses and deflections in a T-joint filled welded structure using a local preheating technique. FEM calculations were performed.…”

Section: Core Developmentsmentioning

confidence: 99%

Towards Efficient and Clean Process Integration: Utilisation of Renewable Resources and Energy-Saving Technologies

et al. 2019

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The strong demand for sustainable energy supplies had escalated the discovery, and intensive research into cleaner energy sources, as well as efficient energy management practices. In the context of the circular economy, the efforts target not only the optimisation of resource utilisation at various stages, but the products’ eco-design is also emphasized to extend their life spans. Based on the concept of comprehensive circular integration, this review discusses the roles of Process Integration approaches, renewable energy sources utilisation and design modifications in addressing the process of energy and exergy efficiency improvement. The primary focus is to enhance the economic and environmental performance through process analysis, modelling and optimisation. The paper is categorised into sections to show the contribution of each aspect clearly, namely: (a) Design and numerical study for innovative energy-efficient technologies; (b) Process Integration—heat and power; (c) Process energy efficiency or emissions analysis; (d) Optimisation of renewable energy resources supply chain. Each section is assessed based on the latest contribution of this journal’s Special Issue from the 21st conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2018). The key results are highlighted and summarised within the broader context of the state of the art development.

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“…In addition, it is costly to reduce weld residual stress using postweld thermal (Refs. 7,8) or mechanical (Ref. 9) procedures.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Prediction of Weld Residual Stress and Distortion - Part 1

Yang¹

2021

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Residual stresses and distortions are the result of complex interactions between welding heat input, the material’s high-temperature response, and joint constraint conditions. Both weld residual stress and distortion can significantly impair the performance and reliability of welded structures. In the past two decades, there have been many significant and exciting developments in the prediction and mitigation of weld residual stress and distortion. This paper reviews the recent advances in the prediction of weld residual stress and distortion by focusing on the numerical modeling theory and methods. The prediction methods covered in this paper include a thermo-mechanical-metallurgical method, simplified analysis methods, friction stir welding modeling methods, buckling distortion prediction methods, a welding cloud computational method, integrated manufacturing process modeling, and integrated computational materials engineering (ICME) weld modeling. Remaining challenges and new developments are also discussed to guide future predictions of weld residual stress and distortion.

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Numerical Analysis of Longitudinal Residual Stresses and Deflections in a T-joint Welded Structure Using a Local Preheating Technique

Cited by 17 publications

References 33 publications

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Optimal Design of Steel–Concrete Composite Beams Strengthened under Load

Towards Efficient and Clean Process Integration: Utilisation of Renewable Resources and Energy-Saving Technologies

Recent Advances in the Prediction of Weld Residual Stress and Distortion - Part 1

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