On the difference between flexural moduli obtained by three-point and four-point bending tests

Mujika, F.

doi:10.1016/j.polymertesting.2005.10.006

Cited by 87 publications

(51 citation statements)

References 3 publications

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“…Mujika [15] studied of the difference of flexural modulus that are obtained from threepoint and four-point bending tests for the same specimen. Mujika analysed the effect of the variation of the support span and the load span caused by the variation of the contact zone between the specimen and support and load rollers that are also considered to be uncertainty sources.…”

Section: Resultsmentioning

confidence: 99%

“…These results also will provide the user and producers to select more appropriate material of their product which provides more safety and functionality. As stated in literature review [10][11][12][13][14][15][16][17] there are many different kind of uncertain sources which are also have important role on combined uncertainty. In the second step of this research new kind of material and more different sized geometries are aimed to investigate as effective uncertainty components.…”

Section: Resultsmentioning

confidence: 99%

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Calculation of measurement uncertainty for plastic (ABS) material in flexural testing

Günay

Fank

Gülmez

et al. 2013

Int. J. Metrol. Qual. Eng.

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Abstract. In order to determine mechanical properties of materials various kind of tests can be applied by means of using their tensile strength, lower yield stress, proof stress, impact strength, Brinell, Rockwell and surface hardness, elongation after fracture properties. Among these tests, three point flexural testing method has some advantages such as easy preparation (production) of samples and no gripping problems comparing to tension test. Flexural tests results should be obtained accurately to provide expected testing performance. The measurement uncertainty of flexural tests should be calculated by conducting all effective uncertainty parameters during the test procedure. In this study, the measurement uncertainty of the flexural test of ABS (Acrylonitrile Butadiene Styrene) material was investigated, which is widely used as industrial plastic material in many applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Calculation of measurement uncertainty for plastic (ABS) material in flexural testing

Günay

Fank

Gülmez

et al. 2013

Int. J. Metrol. Qual. Eng.

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show abstract

“…al [1], Özcan et. al [10], Hamid [3] and Marta Słowik and Tomasz Nowicki [11] used four points bending test rather than three points bending test in which the beam is longer than 1 m. However, Mujika [12] was found that the flexure modulus calculated on four points bending test without correction for both test methods is overestimated. All the past researchers used full steel fibrous concrete beam as the test specimens.…”

Section: Related Workmentioning

confidence: 99%

Steel Fibres as Flexural Cracks Inhibitor in Reinforced Fibrous Concrete Beams under Static Loading

Musa¹

2016

IJIRSET

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ABSTRACT:The introduction of steel fibres in concrete beam has been proposed as flexural cracks inhibitor. This research was conducted focusing on simply supported beam to determine the crack propagations in flexure by varying the steel fibre content placement in the beam. The 25 kg/m 3 steel fibre was chosen. Seven sets of 150×250×1000mm concrete beams consists of three RC beams with full steel fibrous concrete (SFRC), three RC beams with steel fibre placed within tension zone of the beam, three RC beams with steel fibre placed at the half of beam's tension zone, two conventional RC beams as control sample, one unreinforced concrete beam with full steel fibre, one unreinforced concrete beam with steel fibre at tension zone only and one unreinforced concrete beam with steel fibre at half of tension zone. The addition of steel fibre in the conventional RC beam showed that it inhibits the flexural cracks.

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“…The eect of volcanic ash particles weight content (0,5,10, 15, 20, and 25 wt.%) on the mechanical properties of PVC/VA composites was investigated by tensile and exural tests. Tensile and exural properties of composite samples were determined under three dierent temperatures (10 • C, 20…”

mentioning

confidence: 99%

“…On the other hand, there are no research attempts to study mechanical properties of volcanic ash-reinforced PVC matrix. The aim of this work is to study the inuence of concentration of VA particles in the PVC matrix on the tensile and exural properties at three dierent temperatures (10 • C, 20…”

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confidence: 99%

Evaluation of Volcanic Ash Concentration Effect on Mechanical Properties of Poly(Vinyl Chloride) Composites

Bora

2015

Acta Phys. Pol. A

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Various concentrations of inorganic particles of volcanic ashes (VA) were added using twin screw extruder and the injection molding machines to the poly(vinyl chloride) (PVC) to fabricate PVC/VA composites. The eect of volcanic ash particles weight content (0,5,10, 15, 20, and 25 wt.%) on the mechanical properties of PVC/VA composites was investigated by tensile and exural tests. Tensile and exural properties of composite samples were determined under three dierent temperatures (10 • C, 20• C and 50• C) by using Shimadzu AG-X test machine, having a load cell of 10 kN and equipped with the thermostatic chamber with controlled temperature environment. As a result, mechanical properties of PVC/VA composites showed that VA can be used as a ller material in PVC composites. Results of both, the tensile and the exural tests showed that at 10• C and at 20• C, exural and tensile strength values of 25 wt.% PVC/VA composites have decreased by nearly 15%, compared to value of pure PVC. Even though VA particles decrease the exural and tensile strength of PVC, VA can be used as a ller material in PVC matrix. Morphologies of the fracture surfaces and the dispersion of VA particles were observed by using scanning electron microscopy (SEM).

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On the difference between flexural moduli obtained by three-point and four-point bending tests

Cited by 87 publications

References 3 publications

Calculation of measurement uncertainty for plastic (ABS) material in flexural testing

Calculation of measurement uncertainty for plastic (ABS) material in flexural testing

Steel Fibres as Flexural Cracks Inhibitor in Reinforced Fibrous Concrete Beams under Static Loading

Evaluation of Volcanic Ash Concentration Effect on Mechanical Properties of Poly(Vinyl Chloride) Composites

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