烟叶主脉的力学性能试验研究  

Experiment on midrib mechanical properties of tobacco

作　　者：张秀丽[1] 袁志华[1] 周雪花[1] 张全国[1] 刘国顺[2] 

机构地区：[1]河南农业大学机电工程学院,河南郑州450002 [2]河南农业大学烟草学院,河南郑州450002

出　　处：《河南农业大学学报》2014年第2期172-175,共4页Journal of Henan Agricultural University

基　　金：河南省科技攻关项目(102102210535)

摘　　要：以中烟100为研究材料,在万能试验机上对未熟、欠熟、适熟期的烟叶主脉的力学性能进行了研究,分析了烟叶不同成熟度和主脉含水率对主脉弹性模量的影响.结果表明,烟叶主脉材料的拉伸力—变形曲线分为5个阶段.随着烟叶成熟度的提高,含水率和弹性模量均下降,未熟期主脉平均弹性模量为29.84 MPa,欠熟期为27.22 MPa,适熟期为26.01 MPa.In order to research the midrib mechanical properties of tobacco with different maturing, the forcing method experiments for Zhongyan-100 were carried out by using the universal testing machine, and the influence of different maturing and moisture content on the elastic modulus of midrib was also analyzed. The results show that the force-displacement curve of tobacco midrib was divided into five stages. With the increase of maturity degree, moisture content and elastic modulus decreased. The average elastic modulus of midrib of immature period was 29.84 MPa, that of the less mature period was 27.22 MPa, and the ripe period 26.01 MPa.

关 键 词：烟草 主脉 力学性能 

分 类 号：S22[农业科学—农业机械化工程]