Mathematical simulation of stresses within a corn kernel during drying

被引：27

作者：

Jia, CC

Sun, DW

Cao, CW

机构：

[1] Natl Univ Ireland Univ Coll Dublin, Dept Agr & Food Engn, Dublin 2, Ireland

[2] China Agr Univ, Beijing 100083, Peoples R China

来源：

DRYING TECHNOLOGY | 2000年 / 18卷 / 4-5期

关键词：

corn; drying; finite element method; maize; mathematical simulation; modelling; strain; stress;

D O I：

10.1080/07373930008917743

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thermal stress and hydro stress within a single corn kernel during drying are analysed with the mechanics of elasticity and material. The mathematical model of the stress within a single corn kernel during drying is given. A finite element method is developed in details to simulate the maximum principal stress and shear stress within a single corn at 75 degrees C and 50 degrees C drying air temperatures. The locations of the predicted maximum stresses are described and stress fields at different drying time are obtained. The result shows that the predicted locations of the maximum stresses agree with published materials on stress-crack or burst of corn kernels.

引用

页码：887 / 906

页数：20

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