## Finite Element Modeling of Early Age Concrete Behavior

# Finite Element Modeling of Early Age Concrete Behavior

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

10% Feb 22, 2019 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

get price### 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 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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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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In this work a computational model, based on the finite element method was implemented, to simulate the early age concrete behavior, having as a special feature, the evaluation of the cracking risk.

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Thermal cracking in concrete at early ages may influence the long-term durability of a structure. A finite-element method to predict early-age stress development is developed to consider ...

get price### Finite-element modeling of early-age concrete behavior ...

Thermal cracking in concrete at early ages may influence the long-term durability of a structure. A finite-element method to predict early-age stress development is developed to consider ...

get price### Finite-Element Modeling of Early-Age Concrete Stress ...

Jan 01, 2020 Three-dimensional finite-element analysis was used to model the early-age stress development of concrete, and a rate-type creep analysis was used herein. Four creep compliance models, including the B3 Model, Modified B3 Model, B3 Model with R T, and B4 Model were incorporated in the finite-element model. Experimental results from restraint of ...

get price### 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 ...

get price### 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

get price### 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 ...

get price### 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.

get price### Finite-Element Modeling and Analysis of Early-Age Cracking ...

Finite-element analysis was used to model the early-age stress by accounting for the following factors: construction sequencing, support restraint, concrete constituents, temperature effects, and the time-dependent development of mechanical properties, creep/relaxation, and drying shrinkage.

get price### Numerical analysis of the early age behavior of concrete ...

Sep 01, 2009 In this paper, a finite element analysis implemented with the hydration based microplane model is performed to simulate the early age behavior of a concrete structure. As the outcome of finite element analysis, the variations of stress and deformation with time and cracking behaviors are investigated for massive concrete structures.

get price### 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

get price### CALIBRATED FINITE ELEMENT MODELING OF CREEP BEHAVIOR

Nov 01, 2014 A three-dimensional (3-D) finite element model capable of predicting the long-term behavior of prestressed concrete girder bridges is presented. A temperature-independent creep model was adopted and calibrated using early-age data from embedded sensors in

get price### A Combination of Finite Difference and Finite Element ...

A combination of finite difference and finite element methods was employed to develop a model for predicting the temperature development and thermally induced stresses in early-age concrete members (such as bridge footings, piers, columns, girders, and slabs). A two-dimensional finite difference (FD) scheme was utilized for heat generation and transfer within a hydrating concrete member.

get price### Finite element modeling of environmental effects on rigid ...

Finite element modeling of environmental effects on rigid pavement deformation . Abstract . In this study, finite element (FE)-based primary pavement response models are employed for investigating the early-age deformation characteristics of jointed plain concrete pavements (JPCP) under

get price### Technical Report Documentation Page OF CONTINUOUSLY ...

Continuously reinforced concrete pavement (CRCP) performance depends primarily on early-age cracks that result from changes in temperature and drying shrinkage. This report presents the findings of a study of the early-age behavior of CRCP in response to temperature change using a three-dimensional finite element model. The nonlinear

get price### Development of a coupled finite element model for early ...

Development of a coupled finite element model for early age concrete behavior : application to concrete pavements . ... over last 2 decades the interest of the industry about the early age behavior of concrete pavements has increased. At this stages problems may arise related to the thermal, hygral and mechanical behavior of material. Usually ...

get price### 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 ...

get price### 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### 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..

get price### Finite element modeling of creep behavior of FRP ...

Feb 01, 2020 Finite element modeling of creep behavior of FRP-externally strengthened reinforced concrete beams. ... Concrete early age basic creep: experiments and test of rheological modelling approaches. Constr Build Mater, 36 (2012), pp. 373-380. Article Download PDF View Record in Scopus Google Scholar

get price### 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

get price### Development of a coupled finite element model for early ...

Development of a coupled finite element model for early age concrete behavior : application to concrete pavements . ... over last 2 decades the interest of the industry about the early age behavior of concrete pavements has increased. At this stages problems may arise related to the thermal, hygral and mechanical behavior of material. Usually ...

get price### CALIBRATED FINITE ELEMENT MODELING OF CREEP BEHAVIOR

Nov 01, 2014 A three-dimensional (3-D) finite element model capable of predicting the long-term behavior of prestressed concrete girder bridges is presented. A temperature-independent creep model was adopted and calibrated using early-age data from embedded sensors in

get price### Finite element modeling of environmental effects on rigid ...

Finite element modeling of environmental effects on rigid pavement deformation . Abstract . In this study, finite element (FE)-based primary pavement response models are employed for investigating the early-age deformation characteristics of jointed plain concrete pavements (JPCP) under

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### Finite Element Modeling Evangelos Liarakos

The evaluation of mechanical interaction between TPS electrical response and concrete structural conditions is achieved by applying Finite Element Method (FEM) numerical analysis. Concrete strengthening structural influence is introduced to FEM modelling as time-depended changing of Young Modulus, adopting a proposed by Eurocode 2 model that ...

get price### 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 ...

get price### 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.

get price### A Combination of Finite Difference and Finite Element ...

A combination of finite difference and finite element methods was employed to develop a model for predicting the temperature development and thermally induced stresses in early-age concrete members (such as bridge footings, piers, columns, girders, and slabs). A two-dimensional finite difference (FD) scheme was utilized for heat generation and transfer within a hydrating concrete member.

get price### Finite element modeling of environmental effects on rigid ...

May 21, 2014 In this study, finite element (FE)-based primary pavement response models are employed for investigating the early-age deformation characteristics of jointed plain concrete pavements (JPCP) under environmental effects. The FE-based ISLAB (two-and-one-half-dimensional) and EverFE (three-dimensional) software were used to conduct the response analysis. Sensitivity analyses of

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