基于有限元数值方法的金属材料内壁缺陷超声频谱特性研究

Finite element based research on ultrasonic spectral characteristic of inner wall defect of metal materials

SUN Jihua, ZHAO Yang, NAN Gangyang, MA Jian, LIU Shuai，JU Yang

SHANDONG SCIENCE . 2016, (5): 70 -75 . DOI: 10.3976/j.issn.1002-4026.2016.05.012