A Study on the Heat and Stress Evaluation of Reinforced Concrete through High-Frequency Induction Heating System Using Finite Element Techniques

Lim, Myungkwan; Lee, Changhee

doi:10.3390/su13116061

Cited by 3 publications

(2 citation statements)

References 50 publications

(43 reference statements)

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“…Similarly, in the ABAQUS FEM nonlinear calculation process, the whole calculation process can be regarded as a loading increment that changes continuously with the increase of time, and then, through iterative calculation, the final result is obtained. In the process of nonlinear calculation by ABAQUS finite element software, the software can intelligently change the rate of load increase and the convergence rate of control calculation, so that more accurate results can be obtained through the nonlinear research of ABAQUS software in practical problems [11]. The block diagram of the analysis of the concrete material using the ABAQUS software is shown in Figure 2.…”

Section: (4) High Operabilitymentioning

confidence: 99%

Stress Analysis of Concrete Materials Based on Finite Element Analysis

Yang

Yuan

2022

Journal of Sensors

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China’s construction industry standard “technical code for concrete special-shaped column structure” has been implemented since 2006, and the use of special-shaped walls in the actual construction of buildings is more common. The cross-section wall can effectively reduce the protruding angle of the building, thereby expanding the effective building area of the room, reducing the proportion of the building components themselves, and making the structure layout of the building more beautiful. In order to analyze the dynamic characteristics of eccentrically compressed prestressed concrete beams, the finite element simulation of different reinforcement parameters, longitudinal reinforcement diameter, and reinforcement ratio was constructed. Through comparison, the load flexibility curve change law of concrete stress cloud and reinforcement stress cloud under various working conditions and the influence change law of test mold are studied, and the influence change law of dynamic characteristics under the above four conditions and unidirectional bias pressure is clarified.

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Section: (4) High Operabilitymentioning

confidence: 99%

Stress Analysis of Concrete Materials Based on Finite Element Analysis

Yang

Yuan

2022

Journal of Sensors

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“…where Qeff represents the effective heat that can be stored by SHTES via dynamic circulation heat storage, and ∆Teff is the temperature difference of the material surface over time in • C. When a floor is used as a TES, the thermophysical phenomena of the floor are generally studied using the finite element analysis method (FEM) [27][28][29][30]. This method can solve complex problems by treating them as domain objects that are divided into finite element interconnect subdomains, after which the approximate solution of each unit is simplified; subsequently, the approximate solution of the domain is determined.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Thermal Storage Performance of Different Concrete Floors

Wang

2022

Sustainability

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To improve the utilization rate of energy, the consumption of fossil energy must be reduced. In this study, a low-temperature radiant floor made of concrete is taken as the research object, and a two-dimensional low-temperature hot water radiant heating system with different concrete filling layers is numerically simulated using a computational fluid dynamics (CFD) software and finite element method. In this numerical model, a concrete sensible heat storage (SHTES) is adopted, while various types of concrete materials have been used to preliminarily analyze the influence of different concrete types on floor heat storage. The simulation results were further analyzed to determine the total heat storage during the heating period and the total heat storage and heat storage rate during the stable operation stage. The results demonstrate that the thermal conductivity coefficient of concrete floors had the most significant influence on the heat storage effect, with slag concrete demonstrating the most prominent heat storage effect. The total heat storage capacity of slag concrete after 7 h was 848.512 J. Overall, this study proposes a method to enhance the heat storage capacity of low-temperature radiant floors, while providing a design method for future solar energy storages and floor heat storages.

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Stress and deformation control of prestressed concrete beams with corrugated web

Zhang¹,

Xu²,

Chang³

et al. 2023

mat express

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Under unidirectional loading, the material composition and joint arrangement of prestressed concrete beams with corrugated steel webs are determined by deformation stress parameters. Furthermore, using the combined analysis method of longitudinal loading and mechanical parameters, a stress and deformation control model of prestressed concrete beams with corrugated steel webs under unidirectional loading is established. In this paper, the corrugated steel webs are studied experimentally and theoretically, and numerical simulations are carried out. In this paper, by establishing the relationship between the grain friction angle and roughness of corrugated steel web prestressed concrete beams under uniaxial strain and using concrete loading mode, the forces of corrugated steel web prestressed concrete beams under uniaxial strain are calculated and adaptively regulated. The experimental results show that the algorithm can accurately estimate and control the deformation and stress of Prestressed concrete beams under uniaxial strain. The grain size parameters of prestressed beams with corrugated steel webs under unidirectional loading were studied, and their mechanical properties were optimized.

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A Study on the Heat and Stress Evaluation of Reinforced Concrete through High-Frequency Induction Heating System Using Finite Element Techniques

Cited by 3 publications

References 50 publications

Stress Analysis of Concrete Materials Based on Finite Element Analysis

Stress Analysis of Concrete Materials Based on Finite Element Analysis

Numerical Simulation of Thermal Storage Performance of Different Concrete Floors

Stress and deformation control of prestressed concrete beams with corrugated web

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