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The importance of tensile strength in geotechnical engineering
Ivan Vaníček, 2013, original scientific article

Abstract: Many Soil mechanics textbooks contain only limited information about tensile characteristics. Šuklje’s “Rheological aspects of soil mechanics” [1] is an exception, as he devoted a special chapter to this problem “Tensile and Bending Strength of Soils”. Therefore, it is not a great surprise that the subject of the 13th Šuklje’s Lecture is devoted to soil behaviour in tension. Tensile tests are briefly described, some results as well, with a distinction between undrained and drained tests. Practical examples of the application of the results are discussed, firstly in cases where the development of tensile cracks can be expected. Because the results of the drained tests give more information about the bonds between individual particles, some theoretical aspects of these tests are discussed as well.
Keywords: tensile cracks, tensile strength, bending, triaxial drained tensile test
Published in DKUM: 14.06.2018; Views: 920; Downloads: 52
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Proposal of new Pipe-Ring specimen for fracture mechanics
Darko Damjanović, Dražan Kozak, Nenad Gubeljak, Vlado Tropša, 2016, published scientific conference contribution

Keywords: residual stress, pipe, hoop stress, incremental hole drilling method, splitting method, tensile test, F - CMOD, PRS, PRNB, SENB
Published in DKUM: 12.08.2016; Views: 951; Downloads: 217
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Comparison of NiTi orthodontic archwires and a determination of the charasteristic properties
Janko Ferčec, Matija Kos, Mihael Brunčko, Ivan Anžel, Branislav Glišić, Evgenija Marković, Rebeka Rudolf, 2014, original scientific article

Abstract: The aim of this paper was to analyse the characteristic properties of six different, commercially available nickel-titaniumorthodontic wires with a diameter of 0.305 mm (0.014"). The characteristic properties were determined by usingsemi-quantitative EDX analyses, DSC analyses for a determination of the phase temperatures, and a tensile test to obtain themechanical properties of the wires. The investigation of the chemical composition showed an equiatomic NiTi alloy. Analysesof phase temperatures showed that the nickel-titanium orthodontic wires were, in an austenitic microstructure, exhibiting asuperelastic effect in the oral environment. The uniaxial tensile stressstrain curves showed different values for the beginningand the end of the transformation range during the loading.
Keywords: shape-memory alloy, phase transformation, thermal analysis, tensile test
Published in DKUM: 21.12.2015; Views: 991; Downloads: 83
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