A Study of Impact Energy on Eggshell Crack

2nd International Conference on Materials Engineering and Nano Sciences

材料科学;物理学

Chou, Po-Ting^1 ; Lin, Jeng-Liang^1

Dept. Biomechatronic Engineering, National Chiayi University, Taiwan^1

关键词: Binary transform;    Crack length;    Free fall;    Gray-level;    Image analysis systems;    Impact energy;    Linear relationships;    Thermal images;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/378/1/012010/pdf
DOI  :  10.1088/1757-899X/378/1/012010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The lengthy and irregular cracks occur when eggs are impacted. These egg samples with cracks can be used for thermal image to study the display of the crack. The purpose in the study was to analyse eggs impacted by free fall and measure the crack length with a self-developed image analysis system, further investigating the relationship between the impact energy and the crack length. The image analysis system comprised Image Import, Gray Level Processing, Binary Transform, Dilation and Labelling. Finally, all crack blocks could be obtained, as well as the area, perimeter and length could be determined. The test results showed that a height of free fall between 24-42 mm or an impact energy of 12-26 mJ would cause cracks similar to those when eggs were collected. The larger energy was, and the longer crack length was, presenting in linear relationship, as well as the egg source to the relation would be greatly influenced.