Measurement Uncertainty in Testing of Uniaxial Compressive Strength and Deformability of Rock Samples

Kuhinek, Dalibor; Zorić, Igor; Hrženjak, Petar

doi:10.2478/v10048-011-0021-2

Cited by 23 publications

(13 citation statements)

References 4 publications

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“…The compression strength test was conducted using the Universal Testing Machine (UTM-18000-USA) at room temperature with a compression rate of 4 mm/min. The compressive strength was calculated as follows [19]:…”

Section: Methodsmentioning

confidence: 99%

Analysis of the Physical, Mechanical, and Magnetic Properties of Hard Magnetic Composite Materials NdFeB Made Using Bakelite Polymers

Ramlan¹,

Sardjono²,

Setiabudidaya³

et al. 2019

JMAG

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Composite hard magnet NdFeB materials were made using powdered rapidly quenched Nd-Fe-B (MQP-B) and polymers (bakelite). The proportion of the polymer matrix was varied (2.0, 5.0, 7.0, and 10 wt.%). The composite hard magnet NdFeB materials were compacted using one-sided uniaxial hot pressing at 160 °C for 20 min. The bulk density of the composite hard magnet NdFeB was measured using the Archimedes method. Compression tests were carried out using the Universal Testing Machine. The results show that a permanent magnet composite with a 2 wt.% bakelite binder composition exhibits higher bulk density and superior magnetic parameters (i.e., remanence, coercivity, and energy product), but slightly lower compressive strength of approximately 845 kgf/cm 2 .

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Section: Methodsmentioning

confidence: 99%

Analysis of the Physical, Mechanical, and Magnetic Properties of Hard Magnetic Composite Materials NdFeB Made Using Bakelite Polymers

Ramlan¹,

Sardjono²,

Setiabudidaya³

et al. 2019

JMAG

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“…The MC method repeats simulated measurements, each consisting of the nominal measurement value with random noise of the sensor added to it. Therefore, the MC method can propagate the probability density function (PDF) of each input quantity, from each coordinate acquisition station, directly to the total measurement set through the measurement model [21][22][23].…”

Section: Estimation Of Measuring Uncertainties Based On Monte Carlo Smentioning

confidence: 99%

Fusion Estimation of Point Sets from Multiple Stations of Spherical Coordinate Instruments Utilizing Uncertainty Estimation Based on Monte Carlo

Zhang¹,

Qu²

2012

Measurement Science Review

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Multiple instrument stations, based on spherical coordinate measurements, are often used in the measurement of large objects. A data fusion method is proposed to derive optimal estimations of the positions of the object features, measured by more than one device. First, each device has a dedicated coordinate system that is linked together through the measurement of common points. Second, the weighted mean coordinates are derived. The covariance matrix of the sensory, covering of the radial distance and the angles, is propagated to get a weight matrix. Third, a nonlinear function is minimized to determine the optimized coordinate of the points. Monte Carlo error propagation is utilized to estimate the uncertainty of the fusion points. Simulation of the fusion algorithms is performed using laser tracking and laser radar. The fusion algorithm experiments are performed using two laser tracking stations. Simulation and experiments prove that the fusion method improves the precision of the measurements of an object's location, due to incorporating the degree of uncertainty for each measurement point.

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“…Our research work has been focused on compression strength test on bricks to determine their mechanical resistance and suitability for the construction work. One of the basic and most used methods of testing which is performed on brick samples is the determination of uniaxial compressive strength [3]. Similar testing has been performed successfully on other types of materials such as concrete, rocks, and metals with some differences in testing procedures and minimum measurement equipment properties [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of measurement uncertainty for the determination of the mechanical resistance of the brick samples by using uniaxial compressive strength test

Dhoska

Tola

Pramono

et al. 2018

Int. J. Metrol. Qual. Eng.

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Clay bricks are the most important engineering materials that can influence the quality of the construction. The quality control of the clay bricks is of prime importance to improve the quality of engineering construction. The qualities of bricks for construction applications should be checked for various types of inspection services. In this article, our inspection service was focused on compression strength test on bricks to determine their mechanical resistance and suitability for construction work. The accurate method for clay brick's production measurements has been elaborated using uniaxial compressive strength testing machine. The method was tested for a rectangular clay brick manufactured with size approximately 250 mm × 250 mm × 200 mm. The measurement method and standard uncertainty estimation of uniaxial compressive strength are briefly described in this article.

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Measurement Uncertainty in Testing of Uniaxial Compressive Strength and Deformability of Rock Samples

Cited by 23 publications

References 4 publications

Analysis of the Physical, Mechanical, and Magnetic Properties of Hard Magnetic Composite Materials NdFeB Made Using Bakelite Polymers

Analysis of the Physical, Mechanical, and Magnetic Properties of Hard Magnetic Composite Materials NdFeB Made Using Bakelite Polymers

Fusion Estimation of Point Sets from Multiple Stations of Spherical Coordinate Instruments Utilizing Uncertainty Estimation Based on Monte Carlo

Evaluation of measurement uncertainty for the determination of the mechanical resistance of the brick samples by using uniaxial compressive strength test

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