Original title: Fracture of the Eggshell under Impact
Translated title: Lom vaječné skořápky při rázu
Authors: Nedomová, Š. ; Trnka, Jan ; Dvořáková, Pavla ; Severa, L. ; Buchar, J.
Document type: Papers
Conference/Event: Experimental Stress Analysis 2008 /46./, Horní Bečva (CZ), 2008-06-02 / 2008-06-05
Year: 2008
Language: eng
Abstract: [eng] [cze]
Hen's eggshell behaviour at the impact on a rigid plate is studied. The critical impact velocity at which eggshell damage starts has been determined. This velocity depends on the egg's shape. LS DYNA 3D finite element code has been used for the evaluation of the stress and strain distribution in the eggshell during its impact. This numerical simulation enables to evaluate the eggshell strength. This strength is independent on the egg shape as well as on the eggshell thickness. It seems that this strength is an intrinsic material parameter. V práci byla provedena numerická simulace deformačního a lomového chování vejce při jeho dopadu na tuhou překážku. Byl použit program LS DYNA 3D, který umožňuje modelovat i přítomnost kapaliny a vzduchu uvnitř vaječné skořápky. Ukazuje se, že kritická dopadová rychlost závisí na tvaru vejce. Pevnost vaječné skořápky je pak nezávislá jak na tvaru, tak na tloušťce vaječné skořápky.
Keywords: hen's eggshell; impact velocity; LS DYNA 3D
Project no.: CEZ:AV0Z20760514 (CEP), IAA201990701 (CEP)
Funding provider: GA AV ČR
Host item entry: 46th International Scientific Conference EXPERIMENTAL STRESS ANALYSIS 2008, ISBN 978-80-248-1774-3
Note: Související webová stránka: htp://aplmech.vsb.cz/ean2008/

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0163649

Permalink: http://www.nusl.cz/ntk/nusl-39125


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers