KEYWORDS: Digital image correlation, Photoelasticity, RGB color model, Finite element methods, Digital photography, Cameras, Image processing, Reflection, Epoxies
Some engineering areas have the challenge to discover geometries with mechanical high performance against complex applications, which is a defiant design task. With this objective, recent works have demonstrated the powerful contributions that bioinspired experiments can offer a wide diversity of applications. In this sense, this paper analyzes differences in the mechanical response of a stress concentrator when comparing conventional rings and their respective bioinspired representation. Here, the bioinspired geometry comes from a cut of a transversal section of rice root due to its resistance to internal pressures. The mechanical analysis is carried out by hybrid integration of photoelasticity studies, digital image correlation, and finite element methods. In this case, results indicate that preserving the same quantity of material, bioinspired geometries are more sensitive to stress and strain than conventional rings.
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