A Finite Element-Based Methodology for the Thermo-mechanical Analysis of Early Age Behavior in Concrete Structures

Cifuentes, Héctor; Montero‐Chacón, Francisco; Galán, J.; Cabezas, J.; Concha, Antonio Martínez-De La

doi:10.1186/s40069-019-0353-0

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…DS18B20 sensors are used in engineering projects (e.g. for temperature monitoring in hydrotechnical devices [25], studies of concrete properties [26], industrial pipelines [27], geothermal installations [28,29], environmental temperature (e.g. measurements of substrate temperature [5,12,[14][15][16][30][31][32]) and in karst hydrogeology [17].…”

Section: Soil Temperature Sensormentioning

confidence: 99%

A Low-cost Automatic System for Long-term Observations of Soil Temperature

Zaszewski

Gruszczyński

2022

GaEE

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The description of the physical parameters characterizing heat transport in the soil medium, especially on a regional scale, requires long-term and high frequency observations of temperature changes in soil profiles. This paper presents a project for a multi-channel, modular and universal data logger for temperature distribution data collecting in the soil profile, based on open electronic components, such as Arduino microcontroller systems and DS18B20 thermometers. The data logger tests were carried out in two profiles. The seven-month tests did not show any errors in the functioning of the measurement set. The presented device requires an average current of 320 µA, which allows for its stable operation on one battery set for about 300 days in temperate climate conditions. The DS18B20 thermometers allow for accurate and stable temperature measurement (the mean absolute error after laboratory calibration was 0.02°C). The cost of a single measurement-registration device was approximately 76 EUR, representing a competitive price in comparison with commercial data loggers. This allows, with relatively low expenditure, the creation of extensive observation networks for the analysis of the heat flow process in high temporal and spatial resolution.

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Section: Soil Temperature Sensormentioning

confidence: 99%

A Low-cost Automatic System for Long-term Observations of Soil Temperature

Zaszewski

Gruszczyński

2022

GaEE

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“…In the setting of boundary conditions in the finite element calculation domain, the influence of boundary conditions on the finite element analysis domain should be reduced as much as possible. Therefore, in the finite element analysis model of geotechnical slope structure, the basement surface is fixed boundary, the surface is free boundary, the left and right sides are symmetrical boundary, the front and rear sides are side boundary (Cifuentes et al, 2019).…”

Section: Finite Element Analysis Of the Stability Of Rock Soil Slopementioning

confidence: 99%

Finite Element Analysis Method of Slope Stability based on Fuzzy Statistics

Wang¹,

Lin²

2021

Earth sci. res. j.

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In order to reduce the risk of slope stability evaluation due to the fuzziness of calculation parameters, a finite element analysis method of slope stability based on fuzzy statistics is proposed. Based on the principle of quasi-static method and with the help of the finite element software COMSOL multiphysics, this paper studies the stability of the gravel soil accumulation rock slope under the action of different seismic acceleration. By analyzing the displacement, plastic zone and safety factor of the rock soil slope, the stability of the rock soil slope is analyzed. The research results show that the fuzziness of mechanical parameters of rock and soil slope will lead to the fuzziness of position displacement and stress analysis results of rock and soil slope, and the analysis of rock and soil slope with the method of fuzzy finite element analysis can strengthen the comprehensive understanding of position displacement, stress and safety of rock and soil slope by engineers and technicians, and reduce the stability of rock and soil slope due to the fuzziness of calculation parameters to a certain extent Evaluate the risk qualitatively.

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“…We use the concrete damage plasticity (CDP) model by Lubliner et al [25] to analyze the fracture behavior of keyed dry joints under shear. This material model, including the modifications by Lee and Fenves [34], is available in the commercial software Abaqus [26] and has been used successfully to simulate damage in reinforced concrete structures [35][36][37].…”

Section: Structural Modeling Of Fiber-reinforced Concrete Components:mentioning

confidence: 99%

Multiscale Analysis of the Influence of Steel Fiber Reinforcement on the Shear Strength of Post-Tensioned Dry Joints

et al. 2020

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In this work we follow a multiscale methodology to characterize the structural performance of post-tensioned steel fiber-reinforced concrete dry joints. At the material level, we use an experimentally validated lattice-particle model whose input parameters are the properties of the different phases themselves (i.e., mortar, aggregates, fibers) and mixing information. This model is used to obtain the mechanical properties used in the structural-level simulations of the joints in terms of constitutive laws. The structural analyses are performed using the concrete damage plasticity model, which allows us to quantify the effect of fiber addition on the shear strength of the dry joints and their ductility. Our simulations agree well with other macroscopic models in the case of plain concrete and show, once again, that the American Association of State Highway Transportation Officials (AASHTO) code overestimates the nominal shear capacity of multiple-keyed joints. Regarding the fiber addition, we observe that it promotes an important increase in the shear capacity, but the prestress level is still more relevant in this sense. Based on our simulations, we propose an updated shear capacity estimate accounting for the fiber volume fraction. Finally, a clear increase in the ductility of the joint is observed when the fiber volume content is increased.

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A Finite Element-Based Methodology for the Thermo-mechanical Analysis of Early Age Behavior in Concrete Structures

Cited by 8 publications

References 36 publications

A Low-cost Automatic System for Long-term Observations of Soil Temperature

A Low-cost Automatic System for Long-term Observations of Soil Temperature

Finite Element Analysis Method of Slope Stability based on Fuzzy Statistics

Multiscale Analysis of the Influence of Steel Fiber Reinforcement on the Shear Strength of Post-Tensioned Dry Joints

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