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  • CIGR 2018 Abstract Proceeding

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Determination of Time Dependent Stress Distribution on Potato Tubers at Mechanical Collision

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNAbstract

Publication date04/2018
Host publicationCIGR 2018: XIX World Congress of CIGR: "Sustainable Life for Children"
EditorsIbrahim Akinci, Erdem Aykas, Özden Güngör
Place of PublicationAntalya, Turkey
Number of pages1
<mark>Original language</mark>English


This study focuses on determining internal stress progression and the realistic representation of time dependent deformation behaviour of potato tubers under a sample mechanical collision case. A reverse engineering approach, physical material tests and finite element method (FEM)-based explicit dynamics simulations were utilised to investigate the collision based deformation characteristics of the potato tubers. Useful numerical data and deformation visuals were obtained from the simulation results. The numerical results are presented in a format that can be used for the determination of bruise susceptibility magnitude on solid-like agricultural products. The modulus of elasticity was calculated from experimental data as 3.12 [MPa] and simulation results showed that the maximum equivalent stress was 1.40 [MPa] and 3.13 [MPa] on the impacting and impacted tubers respectively. These stress values indicate that bruising is likely on the tubers. This study contributes to further research on the usage of numerical-methods-based nonlinear explicit dynamics simulation techniques in complicated deformation and bruising investigations and industrial applications related to solid-like agricultural products.