Achievements of Truss Models for Reinforced Concrete

Achievements are presented for truss models of RC structures developed in previous years: 1. Two constitutive models, biaxial and triaxial, are based on regular trusses, with bars obeying nonlinear uniaxial σ-ε laws of material under simulation; both models have been compared with test results and show a dependence of Poisson ratio on curvature of σ-ε law.

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UEE - SAFIR publications

The following list gives the bibliographical references of theses and scientific papers in conferences or journals that either explain the theory at the base of SAFIR or show results of research works undertaken with SAFIR. Only references that have the author of SAFIR in the author's list are reported here. Other publications have been written by scientists of other research groups. Theory

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Mechanical Performance of Steel Slag Concrete under

The mechanical performance of steel slag concrete (SSC) under biaxial compression is investigated by a servo-controlled static-dynamic true triaxial machine (TAWZ-5000/3000). Three replacement ratios of steel slags and four kinds of stress ratio (0.25:1, 0.5:1, 0.75:1, and 1:1) are examined in this study.

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Properties of confined fibre-reinforced concrete under

Confined concrete exhibited a higher rate sensitivity than [6] G. Vile, The strength of concrete under short-term static biaxial stress, unconfined concrete, as shown by the lower values of n. The Structure of Concrete and its Behaviour Under Load, Cement and Concrete Association, London, 1968, pp. 275 - 288.

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Implementation of a damage model in a finite element

This work is a numerical simulation of nonlinear problems of the damage process and fracture of quasi-brittle materials especially concrete. In this study, we model the macroscopic behavior of concrete material, taking into account the phenomenon of damage. J. Mazars model whose principle is based on damage mechanics has been implemented in a finite element program written Fortran 90, it takes

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PDF InfluenceofWaterPressureontheMechanicalPropertiesof

concrete. Several studies on the dynamic uniaxial compressive performanceofconcreteafterF-Tcyclescanbefoundinthe literature.Wangetal.[26]studiedthecoupledinfluenceof strain rate and F-Ton the uniaxial dynamic compressive performance of fully graded concrete. Furthermore, they proposed a failure mechanism of fully graded concrete,

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Nanoindentation of Micrograins in Polycrystals under

article{osti_1569811, title = {Nanoindentation of Micrograins in Polycrystals under Multiaxial Stress: Control of Abrupt & Stochastic Plastic Events}, author = {Hemker, Kevin and Papanikolaou, Stefanos}, abstractNote = {Deforming objects in the world of the small has proven a much more complex task than just bending a common-sized object like a spoon.

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A plastic-damage model for concrete - Lubliner et al 1989a

C. Zhang, Y. Zhang. Nonlinear dynamic analysis of the Three Gorge Project powerhouse excited by pressure fluctuation. J. Zhejiang Univ. Sci. A 10(9) (2009) DOI 10.1631/jzus.a0820478; S. Fan, S. Zhao, B. Qi, Q. Kong. Damage Evaluation of Concrete Column under Impact Load Using a Piezoelectric-Based EMI Technique. Sensors 18(5) (2018) DOI 10.3390

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PDF Literature Review on Fatigue Life Contours from Elastic

under repeated loads and thus lead to a more accurate long term behavior of foundations. H. D. Ramesh and M.M. Mayuram." Life Prediction Under Multiaxial Fatigue", International Journal of Fatigue August 2002, Volume 24, Issue 8, Pages 847-859. In this paper SAE 1040, which is a type of steel was used for experimental test.

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Yield and failure criteria for composite materials under

article{osti_1431008, title = {Yield and failure criteria for composite materials under static and dynamic loading}, author = {Daniel, Isaac M.}, abstractNote = {To facilitate and accelerate the process of introducing, evaluating and adopting of new material systems, it is important to develop/establish comprehensive and effective procedures of characterization, modeling and failure

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Experimental Study on Biaxial Dynamic Compressive

On this basis, Yan studied the dynamic compressive properties of concrete under triaxial conditions and found that the dynamic strength under triaxial conditions did not increase significantly . Liang [ 13 ], Guan [ 14 ], Meng [ 15 ], and others have conducted researches on biaxial compression of concrete under constant lateral pressure under

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