拉伸法测硅胶力学性能  

Measurement of silica gel mechanical properties by tensile method

作　　者：牛晓东[1] 卢莉蓉[2] 郭嘉泰[1] 袁小燕[1] 石春花[2] 

机构地区：[1]长治医学院基础医学院物理教研室,山西长治046000 [2]长治医学院生物医学工程系,山西长治046000

出　　处：《大学物理》2015年第7期20-25,共6页College Physics

基　　金：山西省高校科技研究开发项目基金(20091025)资助

摘　　要：利用拉伸法简单的测量硅胶加载卸载时轴向伸长量和横向伸长量.通过matlab最小二乘法对数据拟合,得到了硅胶应力-应变曲线、3种不同定义的杨氏模量、泊松比和应力-应变滞后回线.实验方法简单,测量容易,数据分析所得结果较多.对大学物理实验教学和相关科研有一定的实用价值和意义.By adding and reducing weight to silicone cylinder,axial elongation and transverse elongation are measured by using the stretching method. We get stress- strain curve,three different definitions of the Young＇s modulus,Poisson＇s ratio and stress- strain hysteresis loop of silicone. The experimental method is simple,the measurement is easy and the conclusion of data analysis is more. This will be some practical value and significance to university physics experiment teaching and related research.

关 键 词：拉伸法 硅胶 力学性能 

分 类 号：O4-33[理学—物理]