Simplified Constitutive and Damage Plasticity Models for

Ultra-high performance concrete (UHPC) refers to an innovative concrete that is defined based on multiple criteria (Naaman and Wille 2012; Rossi 2008).Ultra-high performance fiber reinforced concrete (UHPFRC) exhibits superior mechanical properties and energy absorption capacity mainly due to its slow water to binder ratio, high binder dosage, and relatively high fiber dosage (Yu et al. 2015).

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PDF An ACI Technical Publication - American Concrete Institute

Patnaik et al. 2015). There are many different metallic and non-metallic micro or macro fiber available for use in fiber reinforced concrete. A new type of macro fiber known as MiniBars was recently made from basalt fiber and is gaining acceptance in the industry. The addition of fiber to concrete will also improve the bond strength between the

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Tension-Compression Damage Model with Consistent Crack

This paper proposes a tension-compression damage model for concrete materials, formulated within the framework of thermodynamics of irreversible processes. The aim of this work is to solve the following problems: the premature divergence of numerical solutions under general loading conditions due to the conflict of tensile and compressive damage bounding surfaces, which is a result of the

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PDF Guide for the Design and Construction of Fiber-Reinforced

RILEM, 2002, "Test and design methods for steel fiber reinforced concrete. Design of steel fiber reinforced concrete using the σ-w method: principles and applications", RILEM TC 162-TDF Recommendations, Materials and Structures, 35: 262-278; − ACI Committee 544, 1999, "Measurement of properties of Fiber Reinforced Concrete",

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Uniaxial Compressive Test of High Ductile Fiber-Reinforced

It has been widely recognized that the constitutive model plays an essential role in engineering application of high ductile fiber-reinforced concrete (HDC). In this research, uniaxial compressive tests were conducted on nine groups of HDC specimens with different mixture ratios and one group of mortar matrix specimens as comparison, discussing the effect of fiber content, water-cement ratio

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Publications – Bolander, John

J.E. Bolander, “Failure analysis of RC structures using irregular lattice models,” Proceedings of US-Japan-Europe Workshop on Finite Element Analysis of Reinforced Concrete Structures, eds. L. Lowes and F. Filippou, American Concrete Institute, SP-237, 2006, 259-276.

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Damage Modeling of Metallic Fiber-Reinforced Concrete

anisotropic damage theory to predict the mechanical behavior of metallic fiber-reinforced concrete. The behavior law used for the plain concrete is based on damage and plasticity theories. The constitutive law of the action of fibers in the matrix is based on the effective stress carried by the fibers.

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Review of Basalt Fiber-Reinforced Concrete in China

Research on three-dimensional, randomly distributed BFRC in China is analyzed and summarized in relative depth in this study. The results indicate that the effect of the fiber component and alkali corrosion temperature on the alkali resistance of BF is significant; the BF has little effect on the compressive strength of the concrete; the tensile and flexural strengths of the composites

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Flexural Behavior of Laterally Damaged Full-Scale Bridge

assist with improving design prosedures for damaged concrete members with the use of CFRP. This document summarizes the analysis and testing of full-scale 40’ foot long prestressed concrete (PSC) bridge girders exposed to simulated impact damage and repaired with carbon fiber reinforced polymers (CFRP) materials.

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ABAQUS Tutorial: Damage for Fibre-Reinforced Composites

ABAQUS Tutorial: Damage for Fibre-Reinforced Composites - Material Model Explained - Hashin Damage. 1,664 views1.6K views. Mar 3, 2021.

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Analytical Modeling of Concrete Beams Reinforced with

concrete were considered. The tension reinforcement consisted of either steel or fiber reinforced polymer (FRP) bars. Excellent convergence and numerical stability of the formulation was found. The model showed good agreement with the recorded data of the tested beams. KEY WORDS: finite element, smeared crack, isoparametric, secant modulus,

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Recent Articles - Engineering Structures - Journal - Elsevier

A passive stress-strain model for concrete prisms reinforced by a combination of confinement reinforcement. Xin-Kai Hao, Qian Feng, Jian-Jun Zheng November 1, 2021. Early damage detection of fatigue failure for RC deck slabs under wheel load moving test using image analysis with artificial intelligence

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multi scale modeling of fiber and fabric reinforced cement

steel rebar, and using strain-hardening glass fiber reinforced concrete. plastic damage model with material softening (Darwin and Pecknold 1977).

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Experimental Study on the Mechanical Properties of

Free Online Library: Experimental Study on the Mechanical Properties of Amorphous Alloy Fiber-Reinforced Concrete.(Research Article, Report) by "Advances in Materials Science and Engineering"; Engineering and manufacturing Corrosion (Chemistry) Mechanical properties Corrosion and anti-corrosives Metallic glasses Specialty metals industry

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Patching & Spackling Compound at Lowes.com

Bondo 28-oz Clear Patching Compound. Bondo all-purpose putty is a professional strength, versatile filler for repairing interior and exterior surfaces around the home. This fast curing two-part filler allows you to make high-quality, long-lasting repairs to metal, masonry, concrete, wood, drywall and more.

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Table of Contents

Micromechanical models of mechanical response of HPFRCC. Introduction Uniaxial tensile response fiber reinforced concrete Introduction The microstructure of the interfacial transition zone Failure and damage processes Pull-out resistance and its modeling Interfacial effects and stress transfer in fibers for high performance FRC

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Guoqiang Li | LSU Mechanical & Industrial Engineering

A. Shojaei and G. Li. Thermomechanical Constitutive Modeling of Shape Memory Polymer Including Continuum Functional and Mechanical Damage Effects. Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, Vol. 470,

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Dr. Romanbabu M Oinam | Indian Institute of Technology

This study is focused on the effectiveness of a strengthening technique using the combined metallic yielding devices (CMDs) as passive energy dissipation systems to enhance the lateral load resistance and the deformation capacity of the damaged reinforced concrete (RC) frames.

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Computational Model for the Evaluation of the Service Life

We propose a computational model for the evaluation of the service life of fiber-reinforced concrete structural elements subjected to long-term tension. The model is based on the first law of thermodynamics and a proposed idealized tensile stress-strain diagram of fibrous concrete. This model is used for the evaluation of the service life of a fiber-reinforced concrete plate containing a

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STR-888: FLEXURAL TESTS OF CONTINUOUS CONCRETE SLABS

Continuous steel-reinforced concrete slabs are vulnerable to corrosion damage and cracking. Non-metallic basalt fiber-reinforced polymer (BFRP) bars have a great potential to overcome corrosion problems. In this paper, test results of six continuous concrete slabs internally-reinforced with BFRP bars are reported. The specimens were divided into two groups based on the BFRP reinforcement ratio

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Mechanical Properties and Modeling of Amorphous Metallic Fiber

Jun 2, 2016 Compressive stress-strain behavior of small scale steel fibre reinforced high strength concrete cylinders. Journal of advanced concrete 

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