首页|Numerical modelling of crack propagation and R-curve behaviour in layered Al_2O_3/ZrO_2 composites
Numerical modelling of crack propagation and R-curve behaviour in layered Al_2O_3/ZrO_2 composites
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The paper is devoted to numerical modelling of R-curve behaviour in laminates with strong interfaces, in particular multilayers made of alumina (A) and zirconia (Z). Contrary to previous studies based upon the application of approximate weight function method originally developed for homogeneous specimens, a full field analysis by FE of a three-point bending test of a sandwich beam is attempted and compared with the results obtained by approximate weight function method. Also the crack penetration across the layer interfaces is discussed, particularly in the case of a weak singularity.
ceramic laminatesr-curvetoughnessfinite element method
Michal Kotoul、Tomas Vyslouzil
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Institute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering,Brno University of Technology, Technicka 2, 616 69, Brno, Czech Republic
Jan E. Purkyne University, Na okraji 1001, 400 96 Usti nad Labem, Czech Republic
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