中国计量大学学报2017，Vol.28Issue(4)：437-441,5.DOI:10.3969/j.issn.2096-2835.2017.04.005
新鲜构树叶柄的弹性模量测量
Elastic modulus measurement of fresh paper mulberry petioles
摘要
Abstract
The elastic modulus of fresh paper mulberry petioles in May and June was measured by a load-deflection method.The petiole was supposed to be an cantilevered beam of uniform diameter,and the load was concentrated at the free end.The beam deflection was magnified by the optical method.The result showed that the modulus value changed with different petioles from 50MPa to 600MPa.For the same petiole,the modulus decreased with the increase of the load and deflection,which indicated that the fresh petiole was a nonlinear elastic material.For the petioles on a branch,the ones close to the base had larger values of modulus than those close to the free end.The density and diameter of the petiole also had influences on the modulus.关键词
弹性模量/构树叶柄/悬臂梁/挠度Key words
elastic modulus/paper mulberry petiole/cantilever beam/deflection分类
数理科学引用本文复制引用
龚梦,邵传平..新鲜构树叶柄的弹性模量测量[J].中国计量大学学报,2017,28(4):437-441,5.基金项目
国家自然科学基金资助项目(No.11172286). （No.11172286）
