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Residual stresses in functionally graded plates

Published online by Cambridge University Press:  31 January 2011

Achim Neubrand ,
Tai-Joo Chung ,
Jürgen Rödel ,
Eric D. Steffler  and
Theo Fett
Achim Neubrand
Affiliation:
Department of Materials Science, University of Technology Darmstadt, 64287 Darmstadt, Germany
Tai-Joo Chung
Affiliation:
Department of Materials Science, University of Technology Darmstadt, 64287 Darmstadt, Germany
Jürgen Rödel
Affiliation:
Department of Materials Science, University of Technology Darmstadt, 64287 Darmstadt, Germany
Eric D. Steffler
Affiliation:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho 83415
Theo Fett
Affiliation:
Forschungszentrum Karlsruhe, IMF II, 76021 Karlsruhe, Germany
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Abstract

Macroscopic residual stresses in Al2O3/Al plates of graded composition were determined experimentally and by the finite element method (FEM). Experimental stress data were determined by sawing a notch in the plates and measuring displacements by Moiré interferometry. Residual stresses were calculated from the displacements using the weight function method. Experimentally determined stresses agreed with FEM data only if measured thermomechanical properties for the different compositions were used for finite element calculations.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 11 , November 2002 , pp. 2912 - 2920
Copyright
Copyright © Materials Research Society 2002

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