Elastic constants of metal/ceramic composites with lamellar microstructures: Finite element modelling and ultrasonic experiments

2009 ◽  
Vol 69 (5) ◽  
pp. 620-626 ◽  
Author(s):  
Tobias Ziegler ◽  
Achim Neubrand ◽  
Siddhartha Roy ◽  
Alexander Wanner ◽  
Romana Piat
Keyword(s):  
Finite Element ◽  
Elastic Constants ◽  
Finite Element Modelling ◽  
Ceramic Composites ◽  
Element Modelling ◽  
Metal Ceramic

Stress Measurement Using a Bilayer Metal-Ceramic Strip

1992 ◽  
Vol 264 ◽  
Author(s):  
Shukla Kapur ◽  
Philip L. Flaltz
Keyword(s):  
Finite Element ◽  
Thermal Expansion ◽  
Residual Stresses ◽  
Finite Element Modelling ◽  
Stress Measurement ◽  
Second Phase ◽  
Thermal Expansion Mismatch ◽  
Element Modelling ◽  
Metal Ceramic ◽  
Stress Asymmetry

AbstractResidual stresses that develop in metal/ceramic bonded systems due to thermal expansion mismatch have been calculated using finite element modelling and measured experimentally using a simple bilayer strip. Bending in the strip occurs during cooling due to the stress asymmetry. Residual stresses are calculated by measuring the deflection of the strip and the temperature at which the strip is flat. Various compositions of both copper and nickel pastes, with and without glass and other second phase additions were evaluated on glass-ceramic. The effects of further processes, e.g. thermal cycling, brazing and plating, are also reported in this work.

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