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accessing damage of plain and fiber reinforced

accessing damage of plain and fiber reinforced

(PDF) ACCESSING DAMAGE OF PLAIN AND FIBER REINFORCED ...

ACCESSING DAMAGE OF PLAIN AND FIBER REINFORCED CONCRETE UNDER LOADING USING VARIATIONS OF ULTRASONIC PULSE VELOCITY 1 2 3 Piti Sukontasukkul Pematat Hongthong and Smith Songpiriyakij 1 Associate Professor 2 Graduate Student 3 Assistant Professor King Mongkut’s University of Technology-North Bangkok 1518 Pibulsongkarm Road, Bangsue, Bangkok, Thailand

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Performance and damage evolution of plain and fibre ...

The modes of failure for the plain and fibre-reinforced concrete pipelines were similar in the first and second stages of damage. However, in the pipeline constructed using both plain and fibre-reinforced concrete pipe segments, the damage was concentrated in the standard reinforced

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Material Damage Evolution for Plain and Steel-Fiber ...

May 16, 2018  10%  This paper summarizes the results of a research aimed at assessing the damage of plain and steel-fiber-reinforced concrete when using ultrasonic compression and shear wave velocities. The ultrasonic waves and the axial compression loading were oriented to the same direction in order to track the damage progress during several loading steps. The concrete damage

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Numerical analysis of plain and fiber reinforced concrete ...

Jan 25, 2021  In order to better understand the influence of these toughening mechanisms on the formation of hysteresis during cyclic loading‐unloading of plain and steel fiber‐reinforced high‐performance concrete, we model these mechanisms and their evolving influence on damage development using a discrete crack approach, and take into account the ...

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Compressive fatigue damage and failure mechanism of fiber ...

Dec 01, 2016  1. Introduction. Fiber reinforced concrete is made by adding fibers into concrete matrix to improve its ductility. With fiber reinforced concrete widely applied in modern complicated structures, which is subjected to repetitive cyclic loads (e.g. automobile traffic, wind action and sea waves), the fatigue behavior of this material is also getting more and more attention.

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Experimental and numerical fracture analysis of the plain ...

Aug 01, 2020  Hu et al. proposed a peridynamic based computational method for a homogenized description of fiber-reinforced behavior to simulate dynamic brittle fracture and damage in fiber-reinforced composites. In [65] , a new BB-PD model is developed to study in-plane dynamic fracture in orthotropic composite materials, a continuous micromodulus is ...

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Analysis of surface damage in retrieved carbon fiber ...

The performance of carbon fiber-reinforced ultra-high molecular weight polyethylene was compared with that of plain (non-reinforced) polyethylene on the basis of the damage that was observed on the articulating surfaces of retrieved tibial components of total knee prostheses. Established microscopy

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Damage Modeling of Metallic Fiber-Reinforced Concrete ...

Jan 01, 2011  Considering fiber reinforced concrete as two-phase composite, constitutive behavior laws of plain concrete and sliding metallic fibers are described first and then they are combined according to anisotropic damage theory to predict the mechanical behavior of fiber-reinforced concrete. 2. Model Presentation Since fibers act only when the matrix ...

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Material Damage Evolution for Plain and Steel-Fiber ...

May 16, 2018  This paper summarizes the results of a research aimed at assessing the damage of plain and steel-fiber-reinforced concrete when using ultrasonic compression and shear wave velocities. The ultrasonic waves and the axial compression loading were oriented to the same direction in order to track the damage progress during several loading steps. The concrete damage was monitored based

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LOCAL IMPACT DAMAGE BEHAVIOR OF FIBER

projectile on fiber reinforced concrete (FRC) slabs. The primary objective of the study was to investigate the local damage behavior of fiber reinforced high strength concrete slabs. The control slabs were 600 mm square, 90 mm thick reinforced with 8 mm diameter steel rebars, whereas 2% crimped steel fibers were added in FRC slabs.

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Experimental and numerical fracture analysis of the plain ...

Aug 01, 2020  Hu et al. proposed a peridynamic based computational method for a homogenized description of fiber-reinforced behavior to simulate dynamic brittle fracture and damage in fiber-reinforced composites. In [65] , a new BB-PD model is developed to study in-plane dynamic fracture in orthotropic composite materials, a continuous micromodulus is ...

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(PDF) Effect of hybrid fiber reinforcement on corrosion ...

Hybrid Fine aggregate (kg) 850 890 fiber-reinforced concrete (HyFRC), which Batched water (kg) 230 240 utilizes two to three fiber types varying in PVA fibers (vol. %) 0.2 - material and dimensions, is highlighted here for 30mm Steel fibers (vol. %) 0.5 - its multi-scale approach towards damage 60mm Steel fibers (vol. %) 0.8 - resistance.

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Compressive fatigue damage and failure mechanism of fiber ...

Dec 01, 2016  1. Introduction. Fiber reinforced concrete is made by adding fibers into concrete matrix to improve its ductility. With fiber reinforced concrete widely applied in modern complicated structures, which is subjected to repetitive cyclic loads (e.g. automobile traffic, wind action and sea waves), the fatigue behavior of this material is also getting more and more attention.

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An overview of the fatigue behaviour of plain and fibre ...

May 01, 2004  Fig. 2(a) presents the S–N curve for plain concrete under flexural loading. Similarly, Fig. 2(b) and (c) give the S–N curves for SFRC containing 0.5% and 1.0% of fibres under flexural loading respectively. Similarly the R 2 values are significantly less than unity for these test results but are slightly better than those observed for the compression test results.

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Experimental Investigations and Numerical Simulations on ...

Aug 08, 2018  Experimental investigations are carried out on plain concrete and fiber-reinforced concrete (FRC) with different volume fractions (0.5, 1, and 2%) of steel fibers to evaluate their fatigue behavior. Three load ranges, namely 20–65%, 20–75%, and 20–85% of ultimate load, are considered for studies under fatigue loading.

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Effect of fiber architecture on the residual strength of ...

Jan 06, 2020  Glass fiber-reinforced polymer (GFRP) composites are important structural materials with relatively low costs and excellent mechanical performances, which are used in new energy, aerospace, automotive industry, shipbuilding industries and so on. 1 –3 Among them, laminated GFRPs are of mainly concerns because they exhibit satisfactory mechanical properties with unidirectional

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Non-destructive assessment of the fatigue strength and ...

Mar 15, 2015  To the knowledge of the authors, this is the first reported study focussing on the assessment of damage evolution of fatigue loaded satin woven fiber reinforced PMCs, where infrared thermography is used to define their critical damage parameters and to directly monitor the evolution of specific damage mechanisms.

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Conductivity-based strain monitoring and damage ...

Keyword: piezoresistivity, wireless sensing, strain hardening, strain monitoring, damage characterization, engineered cementitious composites 1. INTRODUCTION Fiber reinforced cementitious composite (FRCC) is a relatively new civil engineering material that has been under study for several decades.

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Behavior of Steel Fiber-Reinforced Concrete Slabs under ...

using plain concrete, and four slabs were constructed from a steel fiber-reinforced concrete (SFRC) mixture design with varied volumes of end-hooked steel fibers.

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Determination of Mechanical Characteristics for Fiber ...

Fiber-reinforced concrete has a wide application in practice, and many fields of research are devoted to it. In most cases, this is a specific problem, i.e., the determination of the mechanical properties or the test method. However, wider knowledge of the effect of fiber in concrete is unavailable or insufficient for selected test series that cannot be compared.

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Performance and damage evolution of plain and fibre ...

Performance and damage evolution of plain and fibre-reinforced segmental concrete pipelines subjected to transverse permanent ground displacement. Mohammad Pour-Ghaz, Jacob Wilson, Robert Spragg, Srinivasa (Sid) S. Nadukuru, Junhee Kim, Sean M. O’Connor, Edward M. Byrne, Dorotea H. Sigurdardottir, ...

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(PDF) Effect of hybrid fiber reinforcement on corrosion ...

Hybrid Fine aggregate (kg) 850 890 fiber-reinforced concrete (HyFRC), which Batched water (kg) 230 240 utilizes two to three fiber types varying in PVA fibers (vol. %) 0.2 - material and dimensions, is highlighted here for 30mm Steel fibers (vol. %) 0.5 - its multi-scale approach towards damage 60mm Steel fibers (vol. %) 0.8 - resistance.

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Low-Cycle Fatigue of Plain and Fiber-Reinforced Concrete

Jul 01, 1997  Results of an experimental investigation of the behavior of plain concrete and steel and polypropylene fiber-reinforced concrete under cyclic compressive loading are presented. The parameters of the study were: fiber type, fiber volume, concrete strength, and the stress-to-strength ratio. The tests were conducted under load control.

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Experimental Investigation on Damage Behavior of ...

Nov 20, 2018  This paper presents an experimental investigation on the stress–strain behavior and the damage mechanism of polypropylene fiber reinforced concrete (PFRC) under monotonic and cyclic compression. Fifty-four specimens for different fiber volume fractions and aspect ratios were tested. Acoustic emission (AE) technique was used to monitor the damage progression. The damage

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Experimental mechanical-damage assessment of earthen mixes ...

Feb 20, 2019  If H 0 was rejected, pair-wise single factor ANOVA tests were implemented to identify if each fiber-reinforced earthen mix performed (on average) different from the plain mix. The pair-wise single factor ANOVA tests were also implemented to check the significance of the effect of age at testing since the compressive, flexural and impact ...

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Use of acoustic emission b(Ib)-values to quantify damage ...

Dec 01, 2020  This study reports a new damage quantification method for fiber-reinforced composites using the acoustic emission (AE) b(Ib)-value.Plain-woven carbon fiber/epoxy composite specimens were prepared and their AE signals were analyzed under cyclic

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Determination of Mechanical Characteristics for Fiber ...

Fiber-reinforced concrete has a wide application in practice, and many fields of research are devoted to it. In most cases, this is a specific problem, i.e., the determination of the mechanical properties or the test method. However, wider knowledge of the effect of fiber in concrete is unavailable or insufficient for selected test series that cannot be compared.

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The low-velocity impact and post-impact properties of ...

Apr 05, 2019  The reinforcing material was a 400 den UHMWPE (Dongguan Sovetl Special Rope Webbing Co., Ltd.) conjugated filament, and its physical properties are listed in the Table 1.The weft plain structure exhibited better mechanical properties than did the two other types of weft-knitted structure (rib and cardigan). 31,32 Thus, the weft plain structure was chosen as the reinforcing material.

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Fiber-Reinforced Concrete with Application in Civil ...

Sep 05, 2018  Fiber-Reinforced Concrete with Application in Civil Engineering. Peng Zhang,1 Song Han,2 Serina Ng,3 and Xu-Hao Wang4. 1School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China. 2School of Civil Engineering, Beijing Jiaotong University, Beijing, China. 3Department of Materials and Structures, SINTEF Building ...

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ASTM International - Journal of Testing and Evaluation ...

System Identification of a Reinforced Concrete Building Using the Complex Mode Indicator Function and the Hilbert Transform Techniques. Corrosion of Rebar and Role of Fiber Reinforced Concrete. A New Round Panel Test for the Characterization of Fiber Reinforced Concrete: A Broad Experimental Study

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CHAPTER 2: CONCRETE MATERIAL MODEL

2.2.1 The Composition and Behavior of Plain Concrete Plain concrete is a non-homogeneous mixture of coarse aggregate, sand and hydrated cement paste (see Figure 2.1). For normal-weight, normal-scale con-crete mixes, coarse aggregate is usually gravel or crushed rock that is

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Special Issue "High Performance of Fiber Reinforced ...

Fiber-reinforced concrete, which contains discontinuous and randomly dispersed fibers, is largely used to enhance the performance of plain concrete. In addition, with the presence of fibers, some intrinsic deficiencies of conventional concrete (e.g., shrinkage cracking, spalling in presence of high temperature, etc.) are mitigated or eliminated.

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Numerical Simulations of GFRP-Reinforced Columns Having ...

Oct 09, 2020  The present investigation aims to propose a numerical model for assessing the complex damaging response of glass fiber-reinforced polymer- (GFRP-) reinforced concrete columns having hybrid fibers and confined with GFRP spirals (GFHF columns) under concentric and eccentric compression. Fiber-reinforced concrete (FRC) consists of polyvinyl alcohol fibers (PVA) and

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Experimental Study on Damage Mechanism of Basalt Fiber ...

Jun 30, 2020  To investigate the effect of basalt fiber on the fracturing process and damage mechanism of cement-based materials under axial compression, acoustic emission (AE) signals associated with basalt fiber reinforced mortar (BFRM) with 5 kinds of volume content (0–2.0%) under axial compression were recorded. The statistical analysis of wavelet energy spectrum coefficient and wavelet

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