. "Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis" . "3"^^ . . . "43210" . . "The effect of the egg`s shape on the stress distribution in the eggshell at internal pressure loading"@en . . "V pr\u00E1ci je sledov\u00E1n vliv tvaru vajec na nap\u011Bt\u00ED ve sko\u0159\u00E1pce p\u0159i zat\u011B\u017Eov\u00E1n\u00ED vnit\u0159n\u00EDm p\u0159etlakem. Je navr\u017Een popis tvaru vajec ve form\u011B modifikovan\u00E9 elipsy. Pro hodnocen\u00ED stavu napjatosti je pou\u017Eito mebr\u00E1nov\u00E9 teorie sko\u0159epin, kdy jsou zanedb\u00E1v\u00E1ny ohybov\u00E9 a kroutic\u00ED \u00FA\u010Dinky. Porovn\u00E1n\u00ED s v\u00FDpo\u010Dtem pomoc\u00ED metody kone\u010Dn\u00FDch prvk\u016F, kdy tato zjednodu\u0161en\u00ED nejsou pou\u017Eita, ukazuje, \u017Ee zm\u00EDn\u011Bn\u00E1 teorie d\u00E1v\u00E1 v\u00FDsledky prakticky shodn\u00E9 s v\u00FDsledky uveden\u00E9 numerick\u00E9 simulace. Jsou odvozeny vztahy pro membr\u00E1nov\u00E9 s\u00EDly a nap\u011Bt\u00ED ve vaje\u010Dn\u00E9 sko\u0159\u00E1pce. Distribuce nap\u011Bt\u00ED a jejich velikosti z\u00E1vis\u00ED na parametrech ur\u010Duj\u00EDc\u00EDch tvar vajec a na tlou\u0161\u0165ce vaje\u010Dn\u00E9 sko\u0159\u00E1pky. Z v\u00FDsledk\u016F vypl\u00FDv\u00E1, \u017Ee neexistuje mo\u017Enost predikce vlivu t\u011Bchto parametr\u016F na velikost maxim\u00E1ln\u00EDch hodnot nap\u011Bt\u00ED. Jistou v\u00FDjimku p\u0159edstavuje maximum meridi\u00E1nov\u00E9ho nap\u011Bt\u00ED, kter\u00E9 vykazuje ni\u017E\u0161\u00ED line\u00E1rn\u00ED z\u00E1vislost na indexu, kter\u00FD popisuje tvar vajec."@cs . . . . "The effect of the egg`s shape on the stress distribution in the eggshell at internal pressure loading" . "The effect of the egg`s shape on the stress distribution in the eggshell at internal pressure loading"@en . "The influence of the eggshell shape on the stress distribution under internal pressure is studied. A mathematical description of the hen`s eggshell is proposed. The analytical expressions for the membrane solution are presented. Obtained results are used for the evaluation of a set of domestic hen`s eggs. 28 eggs were analysed in this study. The weight of eggs ranged from 49.55 g to 61.08 g, the egg shape ranged from 72.82 % to 84.94 %, the average eggshell thickness ranged from 0.343 to 0.433 mm. The eggshell strength is given namely by the maximum values both of meridian and circumferential forces. The dependence of the meridian force maximum on the egg shape index has some tendency to increase with egg shape index. The outlined linear dependence is very weak, the coefficient of correlation is about 0.45." . . "P(IAA201990701), Z(MSM 432100001)" . . . "RIV/62156489:43210/07:00107188" . "[EC0AA55709FE]" . . "1" . "14"^^ . "Nedomov\u00E1, \u0160\u00E1rka" . "1211-8516" . "CZ - \u010Cesk\u00E1 republika" . "The influence of the eggshell shape on the stress distribution under internal pressure is studied. A mathematical description of the hen`s eggshell is proposed. The analytical expressions for the membrane solution are presented. Obtained results are used for the evaluation of a set of domestic hen`s eggs. 28 eggs were analysed in this study. The weight of eggs ranged from 49.55 g to 61.08 g, the egg shape ranged from 72.82 % to 84.94 %, the average eggshell thickness ranged from 0.343 to 0.433 mm. The eggshell strength is given namely by the maximum values both of meridian and circumferential forces. The dependence of the meridian force maximum on the egg shape index has some tendency to increase with egg shape index. The outlined linear dependence is very weak, the coefficient of correlation is about 0.45."@en . . . "The effect of the egg`s shape on the stress distribution in the eggshell at internal pressure loading" . "Vliv tvaru vajec na rozlo\u017Een\u00ED nap\u011Bt\u00ED ve vaje\u010Dn\u00E9 sko\u0159\u00E1pce p\u0159i zat\u011B\u017Eov\u00E1n\u00ED vnit\u0159n\u00EDm p\u0159etlakem"@cs . . . "Buchar, Jaroslav" . "Vliv tvaru vajec na rozlo\u017Een\u00ED nap\u011Bt\u00ED ve vaje\u010Dn\u00E9 sko\u0159\u00E1pce p\u0159i zat\u011B\u017Eov\u00E1n\u00ED vnit\u0159n\u00EDm p\u0159etlakem"@cs . "55" . . "419145" . "K\u0159iv\u00E1nek, Ivo" . "RIV/62156489:43210/07:00107188!RIV08-AV0-43210___" . "eggshell; elasticity; internal pressure; membrane analysis"@en . . . "129;142" . "3"^^ . .