| 用超声背向散射谱定征柱状固体的弹性常数 |
| |
| 引用本文： | 刘胜兴,王铁海,王耀俊.用超声背向散射谱定征柱状固体的弹性常数[J].应用声学,2000,19(1):4-7. |
| |
| 作者姓名： | 刘胜兴 王铁海 王耀俊 |
| |
| 作者单位： | 南京大学近代声学国家重点实验室南京 210093 |
| |
| 基金项目： | 江苏省自然科学基金和国家自然科学基金资助项目 |
| |
| 摘 要： | 根据流体中圆柱固体对超声波的背向散射谱与固体弹性参数的密切关系，本提出了材料弹性参数测量的一种新方法－超声背向散射谱法；测量了铜合金杆和铝合金杆的超声背向散射谱，并反演得到了它们的杨氏模量和泊松比。和传统的静力学方法相比，超声背向散射法测得的数据较精确，且对被测材料不会造成任何损伤。
|
| 关 键 词： | 超声背向散射 弹性参数 铜合金杆 铝合金杆 |
| 修稿时间： | 1998年12月11 |
Determination of elastic constants of cylindrical solids using backscattering amplitude spectrum |
| |
| Liu Shengxing,Wang Tiehai and Wang Yaojun.Determination of elastic constants of cylindrical solids using backscattering amplitude spectrum[J].Applied Acoustics,2000,19(1):4-7. |
| |
| Authors: | Liu Shengxing Wang Tiehai and Wang Yaojun |
| |
| Institution: | The State Key Lab of Modern Acoustics, Naming University, Nanjing 210093;The State Key Lab of Modern Acoustics, Naming University, Nanjing 210093;The State Key Lab of Modern Acoustics, Naming University, Nanjing 210093 |
| |
| Abstract: | Based on the relations between the ultrasonic backscattering amlplitude spectrum and elastic constants of a cylindrical solid rod immersed in water, this paper introduces a new method to inversely deduce the elastic parameters by ultrasonic em- surmounts. The ultrasonic backscattering amplitude spectrums of copper and aluminum rods are measured and their Young's modulus and Poisson's ratio are reconstructed. The presented method is nondestructive and more precise and repeatable compared with the traditional static technique. |
| |
| Keywords: | Ultrasonic backscattering Amplitude spectrum Elastic constants recon- struction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用声学》浏览原始摘要信息 |
| 点击此处可从《应用声学》下载免费的PDF全文 |
