Determination of the Viscoelastic Properties of Apple Flesh under Quasi-Static Compression Based on Finite Element Method Optimization
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概要
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A procedure for determining the viscoelastic properties of apple flesh has been proposed based on compression tests and FEM optimization. Short-term simple compression tests and long-term relaxation tests were performed with cylindrical specimens of apple flesh to measure mechanical properties, and the viscoelastic behavior was predicted using FEM optimization models. Through short-term optimization, the elastic modulus and Poissons ratio were determined by comparing two kernel functions based on 1) shear only and 2) shear and bulk terms. Long-term stress-relaxation behavior of the specimen was reasonably predicted by two FEM optimization steps within 3.8 % error. The FEM optimization algorithms developed in this research might be applied to determine the viscoelastic properties of bio-materials and also to predict mechanical behavior of these materials under various loading conditions.
- 2008-05-01
著者
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SAGARA Yasuyuki
Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, The U
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KIM Gyeong-Won
National Institute of Agricultural Engineering, Rural Development Administration
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DO Gab-Soo
Department of Bioenvironmental and Agricultural Engineering, College of Bioresource Sciences, Nihon
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SAGARA Yasuyuki
Food-Kansei Communications Corp.
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Do Gab-soo
Department Of Bioenvironmental And Agricultural Engineering College Of Bioresource Sciences Nihon Un
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Bae Yeong-hwan
Department Of Industrial Machinery Engineering Sunchon National University
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Kim Gyeong-won
National Institute Of Agricultural Engineering Rural Development Administration
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Sagara Yasuyuki
Univ. Tokyo Tokyo Jpn
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Sagara Yasuyuki
Department Of Global Agricultural Sciences Graduate School Of Agricultural And Life Sciences Univers
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Sagara Yasuyuki
Food Kansei Communications
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Sagara Yasuyuki
Department Of Global Agricultural Science Graduate School Of Agricultural And Life Sciences The Univ
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Sagara Yasuyuki
Graduate School Of Agricultural And Life Sciences University Of Tokyo
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KIM Man-Soo
Division of Bio-Resources Engineering, Chungnam National University
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LEE In-Bok
Department of Bio-Systems Engineering, Seoul National University
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LEE Sung-Hyoun
National Institute of Agricultural Engineering, Rural Development Administration
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KANG Suk-Won
National Institute of Agricultural Engineering, Rural Development Administration
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Lee In-bok
Department Of Bio-systems Engineering Seoul National University
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Kim Man-soo
Division Of Bio-resources Engineering Chungnam National University
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Kang Suk-won
National Institute Of Agricultural Engineering Rural Development Administration
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Lee Sung-hyoun
National Institute Of Agricultural Engineering Rural Development Administration
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SAGARA Yasuyuki
Department of Agricultural Engineering, Faculty of Agriculture, The University of Tokyo
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