URČOVÁNÍ MODULŮ PRUŽNOSTI TENKÝCH VRSTEV

ELASTICITY MODULI EVALUATION AT THIN LAYERS

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cs

The authors present a measuring method for tension and compression elasticity moduli evaluation at materials used in thin layers. The method is based on a four-point-bending test realized using a beam with rectangular cross section. Strains are measured on the upper and lower sides of the beam using electric resistance strain gauges. A mathematical theory was derived enabling to evaluate elasticity moduli in tension and compression from the measured strains by a solution of a system of two algebraic equations. The method is convenient for evaluation of elastic moduli at plasmatic coatings where a inter-layer must be created between the plasmatic coating and the basic material in some cases, as well.

The authors present a measuring method for tension and compression elasticity moduli evaluation at materials used in thin layers. The method is based on a four-point-bending test realized using a beam with rectangular cross section. Strains are measured on the upper and lower sides of the beam using electric resistance strain gauges. A mathematical theory was derived enabling to evaluate elasticity moduli in tension and compression from the measured strains by a solution of a system of two algebraic equations. The method is convenient for evaluation of elastic moduli at plasmatic coatings where a inter-layer must be created between the plasmatic coating and the basic material in some cases, as well.

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

2002-06-03

UTAM?

Praha, CZ

80-01-02547-0

Proceedings of the 40th International Conference Experimental Stress Analysis 2002

111–

8