This paper is an extension of the previous study to further explore the applicability of artificial neural networks (ANNs) in modeling the elastic modulus (E c) of recycled aggregate concrete (RAC).In this study, ANNs-I is firstly constructed by using 324 data sets collected from 21 international published literatures, which are randomly …
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The experimental research showed that the elastic modulus strength of manufactured sand concrete was stronger than that of natural sand and it had an increasing trend with the increasing of replacement rate and age …
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Using an artificial neural network enhanced with the imperialist competitive algorithm (ICA), a hybrid model is developed for predicting the uniaxial compressive strength and Young's modulus of granite samples with a high degree of accuracy. The uniaxial compressive strength (UCS) and Young's modulus (E) are important parameters in designing …
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Soil Young's modulus (E), commonly reffred to as soil elastic modulus, is an elastic soil parameter and a measure of soil stiffness. It is defined as the ratio of the stress along an axis over the strain along that axis in the range of elastic soil behaviour. The elastic modulus is often used for estimation of soil settement and elastic ...
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By varying the relative amount of M-sand from 0 to , the modulus of elasticity (MOE) was assessed. The abovementioned mixes were also tested for sorptivity and impact resistance to determine ...
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Metric and Imperial Units. The above values have been provided with both imperial and metric units. As with all calculations care must be taken to keep consistent units throughout. A guide to Soil Types has been provided by StructX and additional information has been provided below.
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By varying the relative amount of M-sand from 0 to , the modulus of elasticity (MOE) was assessed. The abovementioned mixes were also tested for …
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The elasticity modulus was evaluated under the bias of three methods: ultrasound, forced resonance and the stress-strain curve. ... It was proved that the artificial sand increases the mechanical ...
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The UCS and elasticity modulus were estimated using ANN based on point load index, Schmidt rebound hammer number, porosity, and P-wave velocity [18]. The UCS of clay-bearing rock was estimated ...
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The modulus of elasticity of concrete is a crucial property that measures the relationship between stress and strain in concrete when an external force is applied. ... (sand), coarse aggregates, and water. Cement acts as a binder, while aggregates provide strength and durability to the concrete structure. You can find concrete in a variety of ...
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The shear modulus of granular materials, such as sand, is a fundamental mechanical property that is affected by various factors, including particle shape. Understanding the effects of particle shape on the shear modulus is crucial for predicting the behavior of these materials in various geotechnical applications. This study …
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Effect of AGS replacement rate on dynamic elastic modulus. Dynamic elastic modulus was calculated by the secant slope of the two-point line with the peak stress of 40.0% and 60.0% in the rising section of the stress–strain curve [55]. (2) E S = σ …
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The elastic modulus is an important mechanical property of rock and stone in relation to its use as a building material. It is the parameter determining the deformability of the material under applied loads, making it an essential parameter for any structural elements [3, 11, 14].Deformability tests require samples to be extracted and loads applied …
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The concrete properties were determined in terms of compressive, splitting tensile and flexural strengths, modulus of elasticity, fracture energy and characteristic …
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1 Introduction. Loose sand is a member of an extensive family of particulate materials. It is arguably one of the basic and simple geological system, yet it exhibits a …
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Table 1 Some correlations between Young's modulus and other rock index tests Reference Predictor Correlation R 2 Description Leite and Ferland (2001) nE=10.10−0.109n 0.74 Different rocks
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In this study, MOR and MOE of the heat-treated wood were predicted by artificial neural networks (ANNs). For this purpose, samples were prepared from beech wood (Fagus orientalis Lipsky.) and spruce wood (Picea orientalis (L.) Link.).The samples were exposed to heat treatment at varying temperatures (125, 150, 175 and 200 °C) for …
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In this study, two mathematical methods, regression analysis and Artificial Neural Networks (ANNs), were used to predict the uniaxial compressive strength and modulus of elasticity. The P-wave velocity, the point load index, the Schmidt hammer rebound number and porosity were used as inputs for both methods.
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The modulus of elasticity of the mixtures with a binder/sand ratios of 1:3 and 1:4 are 1 and 0.82 ... Modulus of elasticity is a measure of stiffness, with higher …
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In this study, the wear resistance, hardness, elastic modulus, and the correlations between them of artificial denture teeth at the sub-enamel layer were examined. Four types of tested artificial ...
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If for medium dense sand according to Table 7, an average value of the modulus modifier a = 25 is chosen, and sub- stituting σ r = 100, the following relationship between the E-modulus and the ...
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The computation of modulus of elasticity of concrete using equations of various codes are presented below : 1. Modulus of Elasticity Based on ACI 318-14. According to ACI 318-14 section 19.2.2, the modulus of elasticity of concrete is evaluated as follows : For concrete, the unit weight(wc) ranges from 1440 to 2560 Kg per cubic meters.
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Prediction of the elastic modulus of recycled aggregate concrete applying hybrid artificial intelligence and machine learning algorithms. Qian ... Therefore, it can result that the GWSVR model could predict the elastic modulus of RAG concrete precisely even better than GWM3L, which is well over the accuracy of the developed models. Open …
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Due to the high price of river sand, its shortage and unsustainable extraction from the environment, artificial sand (AS) has been promoted as a fine aggregate for producing concrete. However, it …
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The modulus of elasticity of intact rock (E i) is an important rock property that is used as an input parameter in the design stage of engineering projects such as dams, slopes, foundations, tunnel constructions and mining excavations. However, it is sometimes difficult to determine the modulus of elasticity in laboratory tests because high-quality …
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Recognized as a prominent material for engineering applications, carbon fiber-reinforced laminated composites require significant effort to characterize due to their anisotropic structure and viscoelastic nature. Dynamic mechanical analysis has been used to accelerate the testing process by transforming the measured viscoelastic properties to …
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The shear modulus of granular materials, such as sand, is a fundamental mechanical property that is affected by various factors, including particle shape. …
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Following is the example of the observation table that will help you to find the modulus of elasticity. Where, Awire A w i r e = Cross-sectional area of the wire = π 4 × d2 π 4 × d 2. δL δ L = Change in the length of wire. By using this table, you can mathematically calculate the modulus of elasticity of wire material.
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Section snippets Materials. Ordinary Portland cement (CEM I 42.5R) with specific gravity of 3.15 and Blaine fineness of 3260 cm 2 /g was utilized in the production of both artificial lightweight aggregates and concretes. Fly ash (FA) from Çatalağzı Thermal Power Plant, Zonguldak, Turkey which was designated as Class F according to ASTM C …
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The new version of Hooke's law is . Now we have, which is called Young's Modulus or the modulus of elasticity.Young's modulus provides the linear relationship between stress and strain. Young's modulus is the same for any material–you could take a spoon or a girder; as long as they have the same young's modulus and you knew their …
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