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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Computational analysis of the ball-on-three-balls test for determination of strength of ceramic laminates with residual stresses
 Venský, Jiří ; Majer, Zdeněk (oponent) ; Ševeček, Oldřich (vedoucí práce)
This master's thesis deals with numerical simulation of the B3B test. A research in theoretical background was carried out. After that the numerical simulations of the test were performed in many various configurations (flat, curved, curved laminated) for both a disc and a plate. A hyperbolic relation between thickness and f factor was found. Then linear relation between f factor and curvature was found. A possibility of fracture on layer interface was demonstrated. The last part showed how neglecting residual stress in a laminated specimen could lead to incorrect evaluation of experiments.
Úplný záznam
Computational analysis of the ball-on-three-balls test for determination of strength of ceramic laminates with residual stresses
 Venský, Jiří ; Majer, Zdeněk (oponent) ; Ševeček, Oldřich (vedoucí práce)
This master's thesis deals with numerical simulation of the B3B test. A research in theoretical background was carried out. After that the numerical simulations of the test were performed in many various configurations (flat, curved, curved laminated) for both a disc and a plate. A hyperbolic relation between thickness and f factor was found. Then linear relation between f factor and curvature was found. A possibility of fracture on layer interface was demonstrated. The last part showed how neglecting residual stress in a laminated specimen could lead to incorrect evaluation of experiments.
Úplný záznam

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