Abstract

Preserved egg shell is easily broken, The premise is to obtain physical properties and mechanical properties of preserved egg each structure to analyze its breakage mechanism. We apply the method of differential and integral calculus to calculate the basic physical quantities and changes in relationships between them by non-standard elliptical appearance, such as particle size, surface area, cross-sectional area, volume and the perimeter; Through mechanics test, we analyze the breakage rule at 10~30 mm/min five different loading rates by the whole eggs and egg shell; We analyze the stress and strain condition and check the accuracy of experiments by finite element simulation analysis through their workbench model. The results both experimental value and simulation value show the mechanical properties of preserved egg present the regularity of changes by different structures, loading rates and loading directions. These finding suggest that the breakage mechanism of preserved egg is highly dependent on the fracture strength, unit deformation and fracture energy under a certain physical characteristics. Moreover, it was found that these mechanical characteristics were highly dependent on the structure, loading rate and loading direction.

Keywords:

Mechanical properties, physical properties, preserved eggs, the finite element analysis,

References

1. Altuntas, E. and A. Sekeroglu, 2008. Effect of egg shape index on mechanical properties of chicken eggs [J]. J. Food Eng., 85(4): 606-612.
   CrossRef    
2. Altuntas, E. and A. Sekeroglu, 2010. Mechanical behavior and physical properties of chicken egg as affected by different egg weights [J]. J. Food Process Eng., 33(1): 115-127.
   CrossRef    
3. Chen, Y., W.L. Cai, X.J. Zou, H.P. Xiang, T.H. Liu and F.Y. Xu, 2011. Mechanical properties test and finite element analysis for litchi [J]. J. Agri. Eng. Res., 27(12): 358-363.
   
4. Entwistle, K.M., H. Silyn-Roberts and S.O. Abuodha, 1995. The relative fracture strengths of the inner and outer surfaces of the eggshell of the domestic fowl [J]. P. Roy. Soc. Lond. B Bio., 262(1364): 169-174.
   
5. Wang, Y.Q., 2013. Research and finite element analysis of static characteristic of eggshell [J]. J. China Agric. Mech., 34(6): 107-111.
   
6. Zhang, R.R., X.Y. Li, W. Wang, J. Zhang and J. Liu, 2008. Analysis of mechanical properties of Chinese chestnut cracking based on the FEM [J]. T. Chinese Soc. Agric. Eng., 24(9): 84-88. (In Chinese with English Abstract)
   

Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.