ArticleFoods (Basel, Switzerland)2023
Non-Destructive Eggshell Strength Assessment Using Hertz Contact Theory Part I: Theory and Applicability.
Article in Foods (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Research Progress on Non-Destructive Testing Technology and Equipment for Poultry Eggshell Quality.Foods (Basel, Switzerland) · 2025Review
- Enhancing Laying Hens' Performance, Egg Quality, Shelf Life during Storage, and Blood Biochemistry withVeterinary sciences · 2024Article
- Non-Destructive Eggshell Strength Assessment Using Hertz Contact Theory-Part II: Implementation and Validation.Foods (Basel, Switzerland) · 2023Article
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Authors and funding
5 authors.
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Abstract
In the egg industry, fast and highly reliable quality measurements are crucial. This study presents a novel method based on Hertz contact theory that allows for non-destructive determination of eggshell strength. The goal of the study was to evaluate the material strength (Young's Modulus) and structural strength (stiffness) of eggshells. To this end, an experimental setup was constructed to measure the collision of an eggshell with a small steel ball, which was recorded using a laser vibrometer. The study analyzed a sample of 120 eggs and found a correlation of 0.85 between the traditional static stiffness measured during quasi-static compression tests and the stiffness obtained from the Hertz contact theory. The results show that Hertz contact theory is valid for small steel spheres impacting eggshells, while a sensitivity analysis indicated that the most important factor in determining the strength of the eggshell is the contact duration between the egg and the impactor. These results open up the possibility of grading eggs based on their shell strength in a non-destructive manner.
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