Detail publikace

Určování modulů pružnosti tenkých vrstev

BURŠA, J. JANÍČEK, P.

Český název

Určování modulů pružnosti tenkých vrstev

Anglický název

EVALUATION OF MODULI OF ELASTICITY FOR THIN LAYERS

Typ

článek v časopise - ostatní, Jost

Jazyk

en

Originální abstrakt

The paper extends the applicability of the measuring method related to the evaluation of moduli of elasticity for tension and compression, as presented earlier. Moduli of elasticity for thin layers (e.g. plasmatic coatings) can be evaluated by this method based upon a four-point bending test. The test is realized through a rectangular prismatic beam made of the material with known linear elastic properties. On the top and bottom sides of the beam, thin layers are applied, e.g. plasmatic coatings – the elastic constants of which are to be determined. Strains on the surfaces of the layers are measured with electric resistance strain gauges. A mathematical theory derived enables us to determine the moduli of elasticity in tension and in compression from the measured strains using a system of two algebraic equations. The method described is also convenient for evaluation of moduli of elasticity for plasmatic coatings under which an inter-layer is created on the basic material provided that elastic properties of this inter-layer are known.

Český abstrakt

Článek popisuje novou metody k určování modulů pružnosti tenkých vrstev pomocí tříbodového ohybu.

Anglický abstrakt

The paper extends the applicability of the measuring method related to the evaluation of moduli of elasticity for tension and compression, as presented earlier. Moduli of elasticity for thin layers (e.g. plasmatic coatings) can be evaluated by this method based upon a four-point bending test. The test is realized through a rectangular prismatic beam made of the material with known linear elastic properties. On the top and bottom sides of the beam, thin layers are applied, e.g. plasmatic coatings – the elastic constants of which are to be determined. Strains on the surfaces of the layers are measured with electric resistance strain gauges. A mathematical theory derived enables us to determine the moduli of elasticity in tension and in compression from the measured strains using a system of two algebraic equations. The method described is also convenient for evaluation of moduli of elasticity for plasmatic coatings under which an inter-layer is created on the basic material provided that elastic properties of this inter-layer are known.

Klíčová slova anglicky

moduli of elasticity, measuring method, four-point bending, strains, plasmatic coating, EUCOR-ceramics

Rok RIV

2003

Vydáno

01.01.2003

ISSN

1210-2717

Časopis

Inženýrská mechanika - Engineering Mechanics

Ročník

10

Číslo

2

Počet stran

10

BIBTEX


@article{BUT41880,
  author="Jiří {Burša} and Přemysl {Janíček},
  title="EVALUATION OF MODULI OF ELASTICITY FOR THIN LAYERS",
  journal="Inženýrská mechanika - Engineering Mechanics",
  year="2003",
  volume="10",
  number="2",
  month="January",
  issn="1210-2717"
}