显微拉曼光谱力学实验方法与应用研究进展

Research progress in methods and applications of experimental mechanics using micro-Raman spectroscopy

显微拉曼光谱是近十余年来实验力学领域迅速发展的一种实验应力分析新方法.相比于大多数的光测力学方法,显微拉曼能够实现对应力/应变相对直接的表征,具有高空间分辨、高测试效率、无损非接触等特点,适合于原位、在线、活体测量.其对本征和非本征应力均敏感,并能够开展多物理参量的协同表征,是当前实验力学领域新方法研究的国际前沿之一,也是微纳米力学实验分析的重要手段.本文首先介绍了显微拉曼力学表征的实验原理,随后论述了拉曼光谱用于力学研究的若干关键技术,然后综述了基于显微拉曼实验的力学前沿研究进展,最后讨论了显微拉曼光谱在实验固体力学领域的发展前景与方向.本文通过对显微拉曼光谱力学实验方法最新理论、技术与应用进展的综述,为从事微尺度、多尺度力学实验领域的科研工作者提供较为系统的信息参考,同时为那些对微尺度光谱力学感兴趣的青年科研人员提供本领域系统全面的知识.

Micro-Raman spectroscopy(MRS)is a recently developed experimental method for stress analysis.It has the characteristics including high spatial resolution,high testing efficiency and collaborative measurement of multiple physical parameters.It is non-destructive and non-contact,and sensitive to both intrinsic and extrinsic stress,which makes MRS suitable for on-line,in-vito and even living experiments.Moreover,compared with most methods of photomechanics,MRS analyzes stress or strain by a relatively direct way.We illustrate the experimental theories of Raman-stress/strain analyses,and discourse upon several kernel techniques of MRS used in mechanical studies.Then,we summarize the research progress,and finally discuss its development prospects and directions,of MRS in solid mechanics and relative fields.We hope that this review provides a systematic reference for the experimental investigation of micro/nano/multi-scale mechanics using MRS,as well as a rapid and comprehensive understanding for young researchers interested in spectral mechanics.