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Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Abstract
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Abstract
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TY - CHAP
T1 - Determination of Time Dependent Stress Distribution on Potato Tubers at Mechanical Collision
AU - Celik, H Kursat
AU - Cinar, Recep
AU - Rennie, Allan Edward Watson
AU - Ulmeanu, Mihaela-Elena
AU - Akinci, Ibrahim
PY - 2018/4
Y1 - 2018/4
N2 - 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.
AB - 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.
KW - bruise progression
KW - deformation simulation
KW - finite element method
KW - explicit dynamics
KW - potato tuber
M3 - Abstract
SP - 123
BT - CIGR 2018: XIX World Congress of CIGR
A2 - Akinci, Ibrahim
A2 - Aykas, Erdem
A2 - Güngör , Özden
CY - Antalya, Turkey
ER -