TY - GEN
T1 - FEM-based Resonant Ultrasound Spectroscopy Method for Measurement of the Elastic Properties of Irregular Solid Specimens
AU - Wang, Rui
AU - Fan, Fan
AU - Zhang, Qiang
AU - Shen, Fei
AU - Laugier, Pascal
AU - Niu, Haijun
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - Resonant ultrasound spectroscopy (RUS) is a well-established method of identifying the elastic coefficients of solid materials. The Rayleigh-Ritz method (RRZ) is usually used to calculate the natural frequencies of a specimen, where the specimen needs to be processed into a certain regular body. This requirement is hard to meet for some materials with size limitations or special physical/chemical properties. Our objective was to address this limitation with a new approach adapted to specimens of arbitrary geometry by combining RUS with micro computed tomography (μ-CT) and finite element modeling (FEM). The accuracy of the proposed approach was assessed using titanium irregular specimens. The elastic coefficient results showed good agreements (below 2%) with values of a rectangular parallelepiped specimen measured by the RRZ-based RUS. This study overcomes the limitation of RUS to specimen geometry and allows identification of the elastic properties of irregular specimens with good accuracy.
AB - Resonant ultrasound spectroscopy (RUS) is a well-established method of identifying the elastic coefficients of solid materials. The Rayleigh-Ritz method (RRZ) is usually used to calculate the natural frequencies of a specimen, where the specimen needs to be processed into a certain regular body. This requirement is hard to meet for some materials with size limitations or special physical/chemical properties. Our objective was to address this limitation with a new approach adapted to specimens of arbitrary geometry by combining RUS with micro computed tomography (μ-CT) and finite element modeling (FEM). The accuracy of the proposed approach was assessed using titanium irregular specimens. The elastic coefficient results showed good agreements (below 2%) with values of a rectangular parallelepiped specimen measured by the RRZ-based RUS. This study overcomes the limitation of RUS to specimen geometry and allows identification of the elastic properties of irregular specimens with good accuracy.
KW - elastic coefficients
KW - finite element method
KW - irregularly shaped solid materials
KW - resonant ultrasound spectroscopy
UR - https://www.scopus.com/pages/publications/85077602649
U2 - 10.1109/ULTSYM.2019.8925574
DO - 10.1109/ULTSYM.2019.8925574
M3 - 会议稿件
AN - SCOPUS:85077602649
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 1249
EP - 1251
BT - 2019 IEEE International Ultrasonics Symposium, IUS 2019
PB - IEEE Computer Society
T2 - 2019 IEEE International Ultrasonics Symposium, IUS 2019
Y2 - 6 October 2019 through 9 October 2019
ER -