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Numerical analysis of the early age behavior of concrete

Numerical analysis of the early age behavior of concrete

Numerical analysis of the early age behavior of concrete ...

Sep 01, 2009  A numerical analysis for early age behavior is carried out using the finite element code CONSA/HS, a 3D finite element analysis program developed at Korea

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Numerical analysis of the early age behavior of concrete ...

To simulate the early age behavior of concrete structures composed of young concrete, a finite element analysis (FEA) was implemented with the hydration

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Numerical analysis of the early age behavior of concrete ...

A broad understanding of the behavior of concrete from early age to old age is important in evaluating the durability and service life of concrete

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Experimental and numerical analysis of early age behavior ...

Jun 20, 2019  The state-of-the-art numerical models studying early-age behavior in concrete is mainly based on the hygro-thermo-chemo-mechanical coupled framework , , , , . In

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Experimental and numerical analysis of early age behavior ...

An approach combining numerical simulations and experimental techniques is proposed to investigate the early-age properties of non-reinforced concrete. Both

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Experimental and numerical analysis of early age behavior ...

Experimental and numerical analysis of early age behavior in non-reinforced. concrete. Thanh-T ung Nguyen a,, Michael W eiler a, ... The early-age behavior

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Numerical Model Describing the Early Age Behavior of 3D ...

Jul 08, 2020  A numerical model used to predict the behavior of 3D printed concrete in the early age phase up until the point of collapse is presented. An incremental creep

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Numerical analysis of the thermal active restrained ...

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures Author links open

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Numerical analysis of the thermal active restrained ...

Apr 01, 2011  In order to study the early-age behavior of massive concrete structures by means of finite element calculations, several models have been proposed. Ayotte et al.

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A Finite Element-Based Methodology for the Thermo ...

Aug 01, 2019  Concrete mechanical behavior at early age is characterized by the development of low mechanical properties and the appearance of thermal stresses generated by

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Numerical analysis of the early age behavior of concrete ...

Request PDF Numerical analysis of the early age behavior of concrete structures with a hydration based microplane model To simulate the early age behavior of concrete structures composed of ...

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(PDF) Numerical analysis of the thermal active restrained ...

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures Engineering Structures, 2011 F. Benboudjema

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(PDF) Numerical analysis of the thermal active restrained ...

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures April 2011 Engineering Structures 33(4):1390-1401

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Early age behavior of bonded concrete overlays due to ...

Experimental measurements and numerical analyses were performed to investigate the early age behavior of bonded concrete overlays. Drying shrinkage, relative humidity, and thermal changes inside the overlay concrete were measured to define shrinkage and thermal gradients. Tensile bond strength was measured by a modified split tensile test and used for failure criterion in numerical modeling.

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Numerical analysis of effect of temperature history and ...

26 Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete Figure 1. Temperature histories of concrete specimens. A temperature stress testing machine (TSTM), which was ¿rstly developed by Springenschmid et al. (1994),

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Numerical Simulation on Thermomechanical Coupling Behavior ...

Nov 11, 2020  However, the large volume of concrete in connecting segments bears a high cracking risk at an early age in the life of the concrete. In this study, field measurement and numerical simulation were performed on a large-scale connecting segment with early-age concrete to investigate its thermomechanical coupling behavior.

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Numerical analysis of effect of temperature history and ...

May 23, 2020  Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete Jianda Xin State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and ...

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Early age behavior analysis for reinforced concrete bridge ...

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures Article Full-text available

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Thermo-hygro-mechanical behavior of early-age concrete ...

Jun 15, 2011  The test members were made to exhibit the early-age behavior of a composite bridge. The effects of parameters related to thermal and drying shrinkage stress were analyzed through a numerical model and compared with measured data. The risk of transverse cracking in early-age concrete decks was evaluated in the numerical parametric study.

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Thermo-hygro-mechanical behavior of early-age concrete ...

Jun 15, 2011  The test member was made to simulate early-age behavior of composite bridges and the actual variation of temperature was measured according to time after concrete placement. The numerically predicted temperature was compared with the measured one. The variation of RH in early-age concrete was also analyzed with measured ambient RH.

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Experimental and Numerical Analysis on Coupled Hygro ...

May 05, 2021  Additionally, based on the previous studies and theoretical derivations, the coupled hygro-thermo-chemo-mechanical model of early-age concrete is proposed. The predicted results calculated by the proposed model are in good agreement with the test data in

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A Finite Element-Based Methodology for the ... - concrete

Sep 30, 2019  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

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Finite-Element Modeling of Early-Age Concrete Behavior

Aug 04, 2018  Early-age stress development in concrete is influenced by temperature changes, modulus of elasticity, creep or stress relaxation, shrinkage, coefficient of thermal expansion, and the degree of restraint. In this dissertation, three -dimensional, finite element analysis was used to model the early age stress development of concrete.

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Analysis technique for restrained shrinkage of concrete ...

Jul 30, 2010  Song HW, Cho HJ, Park SS, Byun KJ, Maekawa K (2001) Early-age cracking resistance evaluation of concrete structure. Concr Sci Eng 3:62–72. Google Scholar 2. Shimomura T, Maekawa K (1997) Analysis of the drying shrinkage behavior of concrete using a micromechanical model based on the micro pore structure of concrete.

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(PDF) Numerical analysis of the thermal active restrained ...

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures April 2011 Engineering Structures 33(4):1390-1401

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Experimental and Numerical Analysis of the Failure of ...

1 F. Antico, I. De la Varga, M. Pour-Ghaz, CE597-NLFM, Spring 2011 Experimental and Numerical Analysis of the Failure of Notched Concrete Beams . F. Antico, I. De la Varga, M. Pour-Ghaz . Purdue University, School of Civil Engineering, West Lafayette, IN, 47907

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NUMERICAL SIMULATION OF THE EFFECTS OF

the study by numerical simulation, in 3- dimensions, of concrete behavior at an early age during the first 24 h of hydration under severe conditions of temperature and wind speed using a COMSOL ...

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Finite-Element Modeling of Early-Age Concrete Behavior

Aug 04, 2018  Early-age stress development in concrete is influenced by temperature changes, modulus of elasticity, creep or stress relaxation, shrinkage, coefficient of thermal expansion, and the degree of restraint. In this dissertation, three -dimensional, finite element analysis was used to model the early age stress development of concrete.

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Calibration and Validation of a Numerical Model for Early ...

Numerical examples, which deal with the analysis of concrete specimens, both in adiabatic and isothermal conditions, and loaded at different ages, are presented in order to show (1) the calibration procedure of model parameters and, after that, (2) the validation of the model for early age behavior of concrete without any further change of the ...

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A preliminary numerical investigation on the influence of ...

Jun 16, 2006  A preliminary numerical investigation on the influence of material variability in the early-age cracking behavior of restrained concrete A. Radlinska 1 , B. Pease 1

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Materials Special Issue : Numerical Analysis of Concrete ...

Dec 10, 2016  Numerical analysis of concrete is widely used when designing concrete structures, but is also used when investigating the concrete material. Various techniques have been developed to perform an analysis of concrete at different scales, and to analyze different properties, behaviors and failures, or transport mechanisms.

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NUMERICAL ANALYSIS TO EVALUATE THE EFFECT OF RESTRAINED ...

The FEM analysis Model deals with phenomena of temperature, humidity exchange, thermal diffusion, and mechanical behavior which can take a place at the three first days followed the concrete casting, to evaluate the diameter, distance effects on the early age crack.

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Effects of overlay thickness on surface cracking and ...

N2 - The performance of bonded concrete overlays can be diminished by early age surface cracking and (or) debonding at the interface between old and new concrete. This early age failure can be attributed to the volume changes of the overlay concrete caused by shrinkage and temperature change.

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Early-Age Cracking Analysis of a HVFA Concrete Structure ...

From the numerical analysis for HVFA concrete structures, the following conclusions are obtained with focus on its early-age behavior: (1) The proposed XFEM-combined thermal-hygro-mechanical model has the ability to predict the crack path during the early stage of HVFA concrete structures.

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Experimental and Numerical Analysis on Coupled Hygro ...

May 05, 2021  Additionally, based on the previous studies and theoretical derivations, the coupled hygro-thermo-chemo-mechanical model of early-age concrete is proposed. The predicted results calculated by the proposed model are in good agreement with the test data in

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Reinforced concrete tank walls and bridge abutments: Early ...

An example of numerical analysis is presented to show the advantage of the numerical approach of analysis. Abstract The problem of early age cracking is still underestimated in concrete structures in which limited possibility of deformation under thermal-moisture effects may generate dangerous stresses.

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‪Farid Benboudjema‬ - ‪Google Scholar‬

Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures M Briffaut, F Benboudjema, JM Torrenti, G Nahas Engineering Structures 33 (4), 1390-1401 , 2011

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Numerical Modelling of Field Test for Crack Risk ...

The double power law is used to model the creep behavior in the numerical simulations, and the compliance function becomes [10, 14, 22, 24] as follows: where t is the concrete age; tʹ is the concrete age at loading; is the E modulus at the loading age; and φ, d, and p are the creep model parameters.

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