SOME MECHANICAL-PROPERTIES AND STRESS-RELAXATION CHARACTERISTICS OF LENTILS

被引：0

作者：

BARGALE, PC ^{[1
]}

IRUDAYARAJ, JM ^{[1
]}

MARQUIS, B ^{[1
]}

机构：

[1] UNIV LAVAL,DEPT GENIE RURAL,QUEBEC CITY,PQ G1K 7P4,CANADA

来源：

CANADIAN AGRICULTURAL ENGINEERING | 1994年 / 36卷 / 04期

关键词：

D O I：

暂无

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The modulus of elasticity and ultimate compressive stress of lentil kernels as influenced by moisture content were determined. The effects of grain moisture content, deformation level, and two loading speeds (in un-axial compression) on viscoelastic characteristics of lentils were studied. A three-term Maxwell model was found to adequately describe the relaxation characteristics with a maximum relative difference (MRD) of 5%, when compared with one- and two-term Maxwell models. The modulus of elasticity, compressive stress and elastic component (E1), and relaxation time constant (tau1) of the first term of three-term Maxwell model decreased with increase in moisture levels. An empirical equation was proposed to express the combined effect of moisture, loading speed, and deformation level on E1 and tau1 in the three-term Maxwell model. Moisture content had a significant influence on both of these parameters.

引用

页码：247 / 254

页数：8

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