finite element modeling of concrete behavior at early age

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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Finite-element modeling of early-age concrete behavior ...

Feb 22, 2019  10%  Liu Y (2018) Finite-element modeling of early-age concrete behavior. Dissertation, Auburn University. 30. Chen X, Bu J, Xu L (2016) Effect of strain rate on post-peak cyclic behavior of concrete in direct tension. Constr

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Finite Element Modeling of Concrete Behavior at Early Age

Finite Element Modeling of Concrete Behavior at Early Age 1. Introduction Over the past several years, many numerical tools have been devel-oped to evaluate the measures adopted to reduce the cracking risk at early age (Lura, 2000; Morabito, 1998; Shah, 1994). These tools are based on mathematical models capable to describe the coupling

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Finite Element Modeling of Early Age Concrete Behavior ...

TR. DIANA FEA. Finite Element Modeling of Early Age Concrete Behavior using DIANA. The main nonlinear phenomena that govern the deformational behavior of early-age concrete are the evolution of the stiffness properties, the development of thermal and shrinkage strains, creep and cracking. In this article, a set of particularly useful features ...

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Finite element modeling of concrete behavior at early age

Modelagem por elementos finitos do comportamento do concreto nas primeiras idades . M. Aurich I; A. Campos filho II; T. N. Bittencourt III; S. P. Shah IV. I Pontifícia Universidade Católica do Rio Grande do Sul, [email protected], Avenida Ipiranga, 6681, Prédio 30, Bloco B, Sala 101, 90619-900, Porto Alegre, RS, Brasil II Universidade Federal do Rio Grande do Sul, [email protected], Av ...

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Development of a coupled finite element model for early ...

The subjects addressed in this doctoral thesis refer to the early age behavior of concrete and the modelling of concrete pavements at this age. The first subject covers the characterization of the thermal, hygral and mechanical properties and behavior of concrete at early ages. ... R. Development of a coupled finite element model for early age ...

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Finite element analysis of concrete cracking at early age ...

In this work a computational model, based on the finite element method, was implemented to simulate the early age concrete behavior and, specially, the evaluation of the cracking risk. The finite element analysis encloses the computational modeling of the following phenomena: chemical, thermal, moisture diffusion and mechanical which occur at ...

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Development of a coupled finite element model for early ...

Martirosyan, R. Development of a coupled finite element model for early age concrete behavior : application to concrete pavements. Tesi doctoral, UPC, Departament d'Enginyeria Civil i

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Finite element modeling of concrete behavior at early age

Modelagem por elementos finitos do comportamento do concreto nas primeiras idades . M. Aurich I; A. Campos filho II; T. N. Bittencourt III; S. P. Shah IV. I Pontifícia Universidade Católica do Rio Grande do Sul, [email protected], Avenida Ipiranga, 6681, Prédio 30, Bloco B, Sala 101, 90619-900, Porto Alegre, RS, Brasil II Universidade Federal do Rio Grande do Sul, [email protected], Av ...

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Finite Element Modeling of Behavior of Mass Concrete ...

The main tasks performed are as follows: Literature review on the behavior of mass co ncrete at early age and review of finite element method for predicting temperat ures, thermal stresses, and cracking potential in mass concrete structures. Finite Element Modeling of Mass Conc rete Footings: Rectangular mass concrete footings were modeled.

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Development of a coupled finite element model for early ...

The subjects addressed in this doctoral thesis refer to the early age behavior of concrete and the modelling of concrete pavements at this age. The first subject covers the characterization of the thermal, hygral and mechanical properties and behavior of concrete at early ages. ... R. Development of a coupled finite element model for early age ...

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

Sep 30, 2019  Title: A Finite Element-Based Methodology for the Thermo-mechanical Analysis of Early Age Behavior in Concrete Structures Author(s): H. Cifuentes , F. Montero-Chacón, J. Galán, J. Cabezas4 and A. Martínez-De la Concha Publication: IJCSM Volume: 13 Issue: Appears on pages(s): Keywords: heat of hydration, early age cracking, thermo-mechanical model, fracture mechanics of concrete

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Finite-element modeling of deformation and cracking in ...

FINITE-ELEMENT MODELING OF DEFORMATION AND CRACKING IN EARLY-AGE CONCRETE By Ren6 de BorsP and A. H. van den Boogaard 2 ABSTRACT: The main nonlinear phenomena that govern the deformational be- havior of early-age concrete are the evolution of the stiffness properties, the de- velopment of thermal strains, creep, and cracking.

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(PDF) Early-Age Behavior of Jointed Plain Concrete ...

In the analytical modeling of the slabs, the ISLAB2000 finite element model has been used. Based on the large number of comprehensive finite element analyses, a good match has been observed with the analytical solutions and field measurements, thus capturing the early-age behavior of concrete pavement systems under temperature and moisture ...

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Modelling of cement hydration in concrete structures with ...

Dec 01, 2013  A hybrid finite element formulation is used to model temperature evolutions in concrete structures at early ages, taking into account the thermo-chemical process of cement hydration. The most relevant fields in the application problem, namely the temperature and the hydration degree fields, are selected for direct and independent approximation.

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Early age mechanical behaviour of 3D printed concrete ...

Apr 01, 2018  In this study, a numerical model was developed to analyse the mechanical behaviour of early age 3D printed concrete, in the range of 0 to 90 min after material deposition. An experimental program, consisting of unconfined uniaxial compression tests (UUCT) and direct shear tests (DST), was set-up and performed to obtain the required material ...

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

Aug 01, 2019  This paper presents a general procedure based on fracture mechanics models in order to analyze the level of cracking and structural safety in reinforced concrete elements at early ages, depending on the stripping time. Our procedure involves the development of a thermo-mechanical numerical model based on the finite element method that accounts for the change in the mechanical

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A FINITE ELEMENT MODEL FOR THE PREDICTION OF

3-1 Elements used to model early age concrete behavior. ..... 52 3-2 Four-node Isoparametric Boundary Element BQ4HT..... 52 3-3 Adiabatic temperature rise of each concrete mixture obtained from semi-adiabatic ... 3-9 Finite element model of concrete block with insulation..... 56 3-10 Ambient temperatures during experimental block monitoring ...

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Finite element analysis of concrete cracking at early age ...

The detailed study of the stresses development during the construction process can be decisive to keep low the cracking levels. In this work a computational model, based on the finite element method, was implemented to simulate the early age concrete behavior and, specially, the evaluation of

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MODELING OF CONCRETE AT EARLY AGE -BENCHMARK

MODELING OF CONCRETE AT EARLY AGE -BENCHMARK CARRIED OUT WITHIN COST TU 1404. JCI-RILEM International Workshop on ”Control of Cracking of Mass Concrete and Related Issues Concerning Early Age Cracking of Concrete Structures” - CONCRACK5-, Apr 2017, Tokyo, Japan. ... regarding modeling of early-age behavior of ... finite element calculations ...

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

Sep 30, 2019  Title: A Finite Element-Based Methodology for the Thermo-mechanical Analysis of Early Age Behavior in Concrete Structures Author(s): H. Cifuentes , F. Montero-Chacón, J. Galán, J. Cabezas4 and A. Martínez-De la Concha Publication: IJCSM Volume: 13 Issue: Appears on pages(s): Keywords: heat of hydration, early age cracking, thermo-mechanical model, fracture mechanics of concrete

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Finite element analysis of concrete cracking at early age ...

The detailed study of the stresses development during the construction process can be decisive to keep low the cracking levels. In this work a computational model, based on the finite element method, was implemented to simulate the early age concrete behavior and, specially, the evaluation of

get price

MODELING OF CONCRETE AT EARLY AGE -BENCHMARK

MODELING OF CONCRETE AT EARLY AGE -BENCHMARK CARRIED OUT WITHIN COST TU 1404. JCI-RILEM International Workshop on ”Control of Cracking of Mass Concrete and Related Issues Concerning Early Age Cracking of Concrete Structures” - CONCRACK5-, Apr 2017, Tokyo, Japan. ... regarding modeling of early-age behavior of ... finite element calculations ...

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A Finite Element Model for the Prediction of Thermal ...

CHAPTER 3 FINITE ELEMENT THERMAL MODEL Introduction The modeling of the early age thermal behavior of concrete was conducted with the aid of the commercially available TNO DIANA soft ware package. This software package was chosen because it offers a wide range of material models for the analysis of non-linear concrete material behavior ...

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Early-age behavior of continuously reinforced concrete ...

reinforcement. To this end, a 3D finite element model is made using the software program DIANA. Keywords continuously reinforced concrete pavement, finite element modelling, active crack control, early-age behavior, tensile stresses Reinforcement depth I. INTRODUCTION A. Basics of CRCP

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A multiphysics model for concrete at early age applied to ...

Nowadays, this model has been enhanced for structural applications, and has been implemented in 3D in Cast3M (the finite element code developed by the CEA, French Atomic Agency [3]). In this paper the most important aspects of the model and the numerical analysis of the behavior of a real repair case are presented. Two repaired beams are modeled.

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A Multifield Model for Early-Age Massive Concrete ...

Oct 10, 2020  The model is calibrated and validated through numerical simulations of simple creep tests and a three-dimensional finite element analysis of a massive concrete wall. The results suggest that the proposed model offers promise for the analysis of early-age cracking within massive concrete

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A FINITE ELEMENT MODEL FOR THE PREDICTION OF

3-1 Elements used to model early age concrete behavior. ..... 52 3-2 Four-node Isoparametric Boundary Element BQ4HT..... 52 3-3 Adiabatic temperature rise of each concrete mixture obtained from semi-adiabatic ... 3-9 Finite element model of concrete block with insulation..... 56 3-10 Ambient temperatures during experimental block monitoring ...

get price

Modelling of cement hydration in concrete structures with ...

Dec 01, 2013  A hybrid finite element formulation is used to model temperature evolutions in concrete structures at early ages, taking into account the thermo-chemical process of cement hydration. The most relevant fields in the application problem, namely the temperature and the hydration degree fields, are selected for direct and independent approximation.

get price

Early age mechanical behaviour of 3D printed concrete ...

Apr 01, 2018  In this study, a numerical model was developed to analyse the mechanical behaviour of early age 3D printed concrete, in the range of 0 to 90 min after material deposition. An experimental program, consisting of unconfined uniaxial compression tests (UUCT) and direct shear tests (DST), was set-up and performed to obtain the required material ...

get price

Finite Elements in Civil Engineering Applications

Finite element modeling of early age concrete behavior using DIANA 129 R. Witasse M.A.N. Hendriks Numerically simulated pore structure and its potential application in high performance concrete 135 G. Ye, K. van Breugel J.Hu Numerical modelling of microstructure development and strength of cementitious materials 141

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Simulation of early-age Jointed Plain Concrete Pavement ...

Reference to this paper should be made as follows: Kim, S., Ceylan, H., and Gopalakrishnan, K. (2007). “Simulation of Early-Age Jointed Plain Concrete Pavement Deformation under Environmental Loading Using the Finite Element Method,” International Conference on Advanced Characterization of Pavement and Soil Engineering Materials, At hens, Greece, Jun e 20-22, 2007..

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Finite element analysis of concrete cracking at early age ...

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Finite-element modeling of deformation and cracking in ...

Finite-element modeling of deformation and cracking in early-age concrete ... Overview; Fingerprint; Abstract. The main nonlinear phenomena that govern the deformational behavior of early-age concrete are the evolution of the stiffness properties, the development of thermal strains, creep, and cracking. ... used for the combination of thermal ...

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