Effect of egg shape index on mechanical properties of chicken eggs

Altuntaş, Ebubekír; Şekeroğlu, Ahmet

doi:10.1016/j.jfoodeng.2007.08.022

Cited by 120 publications

(146 citation statements)

References 26 publications

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“…The quantities exhibit their maximum in such loading orientation, when the moving plate is in contact with the sharp end of the egg. These results are generally similar to those obtained by Altuntaş and Şekeroğlu (2008). But their validity at higher loading rates is still questionable, because these rates cannot be achieved using the common commercially available universal testing machines.…”

Section: Geometrical Parameterssupporting

confidence: 82%

“…A chicken egg is a packaged food and an important quality aspect of the packaged egg material is the mechanical strength of the eggshell (Altuntaş & Şekeroğlu, 2008). Breaking of the eggshell is due to forces acting on the eggs under quasi-static conditions, as at the bottom of a pile of loaded trays, but the greater part occurs under dynamic conditions: when an egg falls on to the cage floor at oviposition, when it rolls out of the cage and hits another on the rollaway, when it hits a collection-belt guide-bar, when it is dropped on to a grading machine bobbin or on to the grading table after weight grading and when it hits the end of the grading table or another egg already there (Carter, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…Eggs are characterized by the SI as sharp, normal (standard) and round if they have an SI value of <72, between 72 and 76, and >76, respectively. Because of the strong dependence of the rupture force on the egg shape (Anderson et al, 2004;Altuntaş & Şekeroğlu, 2008;Nedomová et al, 2009) only the round eggs were used for performed experiments. The geometric mean diameter of eggs is then calculated using the following equation given by Mohsenin (1970):…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Loading Rate on Hen’s Eggshell Mechanics

Trnka¹,

Buchar²,

Severa³

et al. 2012

JFR

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The study is focused on analysis of mechanical behavior of hen's eggshell expressed in terms of average rupture force and corresponding deformation. Some other physical properties such as mass, length, diameter, geometric mean diameter, surface area, sphericity, and volume were also evaluated. The egg samples were compressed along their X and Z-axes. Two different experimental methods were used: compression between two plates (loading rates 0.0167, 0.167, and 1.67 mm/s) and impact of a free-falling cylindrical bar (loading rates up to 17 mm/s). Surface displacement and surface velocity were measured using the laser-vibrometer. The increase in rupture force with loading rate was observed for loading in all direction (along main axes). Dependence of the rupture force on loading rate was quantified and described. The highest rupture force was obtained when the eggs were loaded along the X-axis. Compression along the Z-axis required the least compressive force to break the eggshells.

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Section: Geometrical Parameterssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Loading Rate on Hen’s Eggshell Mechanics

Trnka¹,

Buchar²,

Severa³

et al. 2012

JFR

View full text Add to dashboard Cite

show abstract

“…One of the important quality aspects of packaged eggs is the mechanical strength of the egg shell [1]. Breaking of the eggshell is due to the forces acting on the eggs under static and/or quasi-static conditions, as at the bottom of the pile of loaded trays, but the greatest part occurs under dynamic conditions, e.g., when an egg falls on to the cage bottom at oviposition and in the many other events, which are collected by Carter [2].…”

Section: Abstract Eggs Compression Dynamic Loading Hspb Techniqmentioning

confidence: 99%

A new approach to analyze the dynamic strength of eggs

et al. 2016

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The mechanical behavior of eggshell was determined in terms of average rupture force and corresponding deformation. For the experiment, we selected goose eggs (Anser anser f. domestica). Samples of eggs were compressed along their x-axis and z-axis. The effect of the loading orientation can be described in terms of the eggshell contour curvature. Two different experimental methods were used: compression between two plates (loading rates up to 5 mm/s) and the Hopkinson split pressure bar technique. This second method enables achieving loading rates up to about 17 m/s. The response of goose eggs to this high loading rate was characterized also by simultaneous measurement of the eggshell surface displacements using a laser vibrometer and by the measurement of both circumferential and meridian strains. Keywords Eggs . Compression . Dynamic loading . HSPB technique . Rupture forceThe egg is a packaged food. One of the important quality aspects of packaged eggs is the mechanical strength of the egg shell [1]. Breaking of the eggshell is due to the forces acting on the eggs under static and/or quasi-static conditions, as at the bottom of the pile of loaded trays, but the greatest part occurs under dynamic conditions, e.g., when an egg falls on to the cage bottom at oviposition and in the many other events, which are collected by Carter [2]. The dynamic loading can also lead to the vibration of the egg liquid products. The eggs thus serve

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“…2009). The mechanical properties of the rupture force, specific deformation, rupture energy, and firmness were examined (Altuntas & Şekeroğlu 2008). These studies mainly focused on the acoustic system parameters optimisation and on the characteristic frequency investigation of the response signals.…”

mentioning

confidence: 99%

Eggshell crack detection based on acoustic impulse response and supervised pattern recognition

Hao¹,

Zhao²,

Chen³

et al. 2009

Czech J. Food Sci.

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Lin H., Zhao J., Chen Q., Cai J., Zhou P. (2009): Eggshell crack detection based on acoustic impulse response and supervised pattern recognition. Czech J. Food Sci., 27: 393-402.A system based on acoustic resonance was developed for eggshell crack detection. It was achieved by the analysis of the measured frequency response of eggshell excited with a light mechanism. The response signal was processed by recursive least squares adaptive filter, which resulted in the signal-to-noise ratio of the acoustic impulse response reing remarkably enhanced. Five features variables were exacted from the response frequency signals. To develop a robust discrimination model, three pattern recognition algorithms (i.e. K-nearest neighbours, artificial neural network, and support vector machine) were examined comparatively in this work. Some parameters of the model were optimised by cross-validation in the building model. The experimental results showed that the performance of the support vector machine model is the best in comparison to k-nearest neighbours and artificial neural network models. The optimal support vector machine model was obtained with the identification rates of 95.1% in the calibration set, and 97.1% in the prediction set, respectively. Based on the results, it was concluded that the acoustic resonance system combined with the supervised pattern recognition has a significant potential for the cracked eggs detection.

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Effect of egg shape index on mechanical properties of chicken eggs

Cited by 120 publications

References 26 publications

Effect of Loading Rate on Hen’s Eggshell Mechanics

Effect of Loading Rate on Hen’s Eggshell Mechanics

A new approach to analyze the dynamic strength of eggs

Eggshell crack detection based on acoustic impulse response and supervised pattern recognition

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