摘要
一般的静态法检测某些材质的杨氏模量时,常因易碎(如陶瓷)、多孔疏松不能恢复(骨质等)等诸多原因难以准确测量。而较为精准的激光散斑法又比较复杂。动态实验方法测量材料的杨氏模量是力学研究分析的一个有力工具。文章采用横向共振法测定骨质的弹性模量,并用静态法(激光散斑法)来验证其准确性。结果表明横向共振法测得的牛骨杨氏模量与激光散斑法的结果基本吻合,且实验结果稳定,误差小,可以在较短时间内取得很有价值的数据。另外,还对样品在不同温度下的杨氏模量的测量作了分析。
In this paper,we use dynamics hanging method to measure Young＇s modulus of materials. It avoids the inaccuracy proceed from brittleness,osteoporosis and so on. Dynamic method is an efficient pathway in studies in dynamics. Using horizontal resonance method,we measured Young＇s modulus of bone and authenticated it with a kind of static method. Experimental results evinced that horizontal resonance method is relatively stable, the error is smaller, and we can get valuable results in a short time. Additionally,we also analyzed Young＇s modulus of bone in different temperature.
出处
《大学物理实验》
2013年第2期28-30,共3页
Physical Experiment of College
基金
南京邮电大学校内自然科学基金(NY21005)
关键词
牛骨
杨氏模量
横向共振法
bovine bone
Young＇ s modulus
horizontal resonance
