Calculating breaking point of an egg

[Brosabal]

calculating breaking point of an egg ...

A general engineering question, how would i go about calculating the breaking point of an egg. The shape is what really gets to me. Then there's calculating Ix and stuff. I need help, anyway of going my calculating the breaking stress of an egg (top to bottom) would help. Thanks

Bross

 

[Astronuc]

Ostensibly one calculates the shear stress required to fracture the membrane. One the fracture is initiated, it takes less force to propagate the facture. This also assumes an external impact.

Example of internal pressure/force on egg fracture -
The Fracture Strength under Internal Pressure of the Eggshell of the Domestic Fowl
http://links.jstor.org/sici?sici=0962-8452(19960422)263%3A1369%3C433%3ATFSUIP%3E2.0.CO%3B2-V

Here's an expert - http://www.mech.canterbury.ac.nz/people/entwistle.shtml

Professional Interests

Fracture strength of egg-shells and the establishment of how the organic features of the structure affect the fracture strength of the calcite; mechanical behaviour of softwood.