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Determination of Mechanical Properties by Instrumented Indentation
Authors: Menčík Jaroslav
Year: 2007
Type of publication: článek v odborném periodiku
Name of source: Meccanica
Publisher name: Springer
Place: Netherlands
Page from-to: 19-29
Titles:
Language Name Abstract Keywords
cze Určování mechanických vlastností přístrojovou indentací Článek podává přehled možností zjišťování mechanických vlastností tzv. přístrojovou indentací z průběžně měřeného zatížení a dráhy indentoru. pojednává o měřená elastických, plastických a viskoelastických vlastností, a to při monotónním zatěžování / odlehčování a při harmonickém zatěžování. mechanické vlastnosti, měření, indentace, , tvrdost, modul pružnosti, pevné látky, nanoindentace
eng Determination of Mechanical Properties by Instrumented Indentation The paper reviews the current state of the depth-sensing indentation (sometimes called nanoindentation), where the information on material behaviour and properties is obtained from the indenter load and depth, measured continuously during loading and unloading. It is shown how the contact parameters and principal characteristics are determined using pointed or spherical indenters. Indentation tests can be used for the measurement of hardness and elastic modulus, and also of the yield stress and for the construction of stress ? strain diagrams, for the determination of the work of indentation and its components. Most devices use monotonic loading and unloading, but some also enable measurement under a small harmonic signal added to the basic monotonously increasing load. This makes possible continuous measurement of contact stiffness and the study of dynamic properties and the determination of properties of coatings. One section is devoted to the measurement on viscoelastic-plastic materials, where the delayed deforming must be considered during the measurement as well as in data evaluation. Instrumented indentation can also be used for the study of creep under high temperatures. The paper also discusses the errors arising in depth-sensing measurements and informs briefly about some other possibilities of the method and about the mostly used devices. mechanical properties, measurement, indentation, hardness, elastic modulus, elasticity, plasticity, viscoelasticity, mechanics of solids

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