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National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.01 seconds. 
The Influence of Multilayer Composite Interface on Crack Propagation Direction
 Šestáková, Lucie ; Náhlík, Luboš ; Hutař, Pavel
The paper deals with crack propagation in multilayer composites. A substantial number of experimentally based works have indicated the changes in crack propagation direction on multilayer composite interfaces. Changes of this kind are mostly desirable for composite technical life extension. Crack direction modification in the composite interface is investigated through a numerical simulation of this problem. For determination of the consequent propagation direction the minimal strain energy density criterion is employed. The ascertained propagation direction of the crack in the multilayer composite is compared with experimental results.
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Numerical analysis of a surface crack in protective layers
 Šestáková, Lucie ; Majer, Zdeněk ; Náhlík, Luboš ; Knésl, Zdeněk
Two elastic plane strain problems relevant to the cracking of protective layers bonded to dissimilar semi-infinite substrate materials are solved. In the first case a crack initiated at the free surface of the layer and propagating within the film is considered and the influence of its original orientation on cracking mode of the layer is studied. The second problem is that of the crack in the layer oriented perpendicularly to the layer/substrate interface and its influence on a debonding of the layer/substrate system is analysed. In both cases the influence of elastic mismatch of both components on the crack behaviour is discussed. The results provide the details making it possible to solve practical problems connected with damage of bodies with protective layers.
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Influence of surface cracks on delamination between protective layer and base material
 Šestáková, Lucie
The paper deals with fatigue cracks in protective layers. An influence of material parameters on the fatigue crack behaviour was studied under conditions of linear elastic fracture mechanics. The stress intensity factor, the T-stress and decisive components of stresses within the interface were determined and their influence on a debonding of the layer/substrate system was discused.
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National Repository of Grey Literature : 13 records found   previous11 - 13  jump to record:
See also: similar author names
1 ŠESTÁKOVÁ, Lenka
1 ŠESTÁKOVÁ, Libuše
10 ŠESTÁKOVÁ, Lucie
10 Šestáková, Lucie
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