Indexed by:期刊论文
Date of Publication:2013-10-15
Journal:实验力学
Included Journals:PKU、ISTIC、CSCD
Volume:28
Issue:5
Page Number:549-556
ISSN No.:1001-4888
Key Words:碳纳米管应变传感器;显微拉曼光谱;测量精度;实验模式;定量分析
Abstract:碳纳米管作为一种拉曼力学传感介质具有优异的力学性质及共振、偏振拉曼特性.将碳纳米管散布在基体材料中,即可实现局部应力/应变的测量.受到光学衍射极限的限制,常规的远场拉曼光谱得到的是一定区域内众多碳管的平均散射信息.本文综合考虑了采样点内各方向碳管的影响,并对碳管散射的共振状态、碳管的分布状态、拉曼系统的偏振构型及偏振方向等实验因素对碳纳米管应变传感器性能的影响进行了深入分析,采用分峰和重构的方法定量地给出了不同实验模式下采样点内的拉曼信息组成以及各种实验模式的测量精度.分析和对比表明,采用双偏振构型且偏振方向沿荷载施加方向时的测量精度最高,即最优的实验模式.
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology (DUT)
Degree:Doctoral Degree
School/Department:State Key Laboratory of Industrial Equipment for Structral Analysis, Department of Engineering Mechanics
Discipline:Solid Mechanics. Applied and Experimental Mechanics. Engineering Mechanics. Mechanical Manufacture and Automation. Vehicle Engineering. Aerospace Mechanics and Engineering. mechanics of manufacturing process
Business Address:Room 321, Department of Engineering Mechanics
Contact Information:Tel.: 86 0411-84708406 Email: leizk@dlut.edu.cn
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