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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料无损检测与评价
办公地点：大连理工大学材料馆
联系方式：linli@dlut.edu.cn
电子邮箱：linli@dlut.edu.cn
Correlating ultrasonic velocity and porosity using FDTD method based on random pores model
点击次数：
论文类型：会议论文
发表时间：2010-06-26
收录刊物：EI、CPCI-S、Scopus
卷号：675-677
页面范围：1221-+
关键字：Random pores model; TBC; Porosity; Ultrasonic testing; Numerical simulation
摘要：Ultrasonic testing porosity of TBC (thermal barrier coating) has been investigated by numerical simulation based on the implementation of FDTD (Finite Difference Time Domain) method for the RPM (random pores model). Numerical simulations of measuring ultrasonic longitudinal and transverse velocities were carried out for the plasma sprayed ZrO2 coatings with porosities ranging from 0.5 % to 4 %. The results show both longitudinal and transverse velocity decrease with the increase of porosity, which is similar to the experimental results in the reference (J. Thermal Spray Technol 12 (2003) 530-535). The investigation proves that the combination of the RPM and FDTD method is available for simulating ultrasonic testing of TBC porosity.