Instrumentaion for an Undergraduate Experimental Mechanics Laboratory

该项目的目的是为新组织的实验力学高级课程提供仪器支持。涵盖的主题包括应变计测量，光弹性建模和使用光弹性涂层的应变测量，传输二维模型和三维模型切片分析。购置一台透射偏光镜和配套仪器，以补充现有的应变仪和光弹性涂层部分的课程。该仪器的增加使学生熟悉双折射，延迟，偏振，等斜和等色补偿的概念，以及白光和单色光的作用。学生利用仪器进行三维应力冻结和切片分析。

The purpose of the project is to provide instrumentation in support of a newly organized senior-level course in experimental mechanics. Topics covered include strain-gage measurements, photoelastic modeling and strain measurements using photoelastic coatings, transmission two-dimensional models and three-dimensional model slice analysis. Acquisition of a transmission polariscope and supporting instrumentation supplement existing instrumentation for the strain-gage and photoelastic coating portion of the course. The addition of this instrumentation permits the students to become familiar with the concepts of birefringence, retardation, polarization, isoclinics and isochromatics compensation, and the roles of both white light and monochromatic light. Three-dimensional stress-freezing and slice analysis are performed by students utilizing the instrumentation.