Experimental Measurement of Residual Stress on Thermal Spray Coatings with Moire Interferometryand Hole-drilling method
Residual stress is one of the important factors in thermally sprayed deposits which affects both processing and performances.In the present study, the hole-drilling method and moire interferometry were used to determine the residual stress of thermally sprayed coatings to overcome certain limitations of thestrain rosette version of hole drilling.The methodology was established based on the elastic theory and finite element method.The residual displacement was measured by the moire interferometry and the residual stress of the thermally sprayed coating was calculated.The results have demonstrated that the moire interferometry for surface displacement caused by hole-drilling is high sensitive, reliable and stable.
Residual stress Thermal barrier coatings Experimental measurement Moire interferometry
Jianguo Zhu Huimin Xie
Faculty of of Civil Engineering and Mechanics, Jiangsu University, China AML, Department of Engineering Mechanics, Tsinghua University, China
国际会议
北京
英文
417-423
2014-10-19（万方平台首次上网日期，不代表论文的发表时间）