National Natural Science Foundation of ChinaNational Natural ScienceFoundation of China [51365006, 51445013]; Natural Science Foundation ofGuangxiNational Natural Science Foundation of Guangxi Province[2016GXNSFAA380119]; project of Guangxi Key Laboratory for ManufacturingSystems and Advanced Manufacturing Technology [14-045-15S05]; ResearchFoundation of Education Bureau of Hunan Province [15A008]
机构署名：
本校为其他机构
院系归属：
汽车与机械工程学院
摘要：
Residual stress has significant influence on the performance of mechanical components, and the nondestructive estimation of residual stress is always a difficult problem. This study applies the relative nonlinear coefficient of critical refraction longitudinal (LCR) wave to nondestructively characterize the stress state of materials; the feasibility of residual stress estimation using the nonlinear property of LCR wave is verified. The nonlinear ultrasonic measurements based on LCR wave are conducted on components with known stress state to cal...
