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Behaviour of egg shell under compression in relation to deformation measurements1 |
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| Authors: | P W Voisey R M G Hamilton |
| Institution: | 1. Engineering Research Service , Ottawa, Ontario, K1A 0C6, Canada;2. Animal Research Institute, Research Branch, Agriculture Canada , Ottawa, Ontario, K1A 0C6, Canada |
| Abstract: | 1. The egg does not completely obey Hook's law when compressed between flat surfaces. 2. Deformation was not completely reversible due to crumbling at the points of contact with the force. 3. There are three components of non‐destructive deformation: (a) local deformation at the points of contact, (b) local surface crumbling and (c) deformation of the over‐all shell structure. 4. The latter two are uncontrolled, contributing to errors in the prediction of fracture force and depending on the non‐destructive force applied. 5. These effects should be considered in test selection and interpretation. 6. The optimum non‐destructive force was found to be 1 kg. |
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