TY - GEN
T1 - Modeling of Ultrasonic Nonlinearities for Debris Cloud-Induced Micro-Voids Characterization: Theoretical Analysis and Numerical Validation
AU - Cao, Wuxiong
AU - Pang, Baojun
AU - Su, Zhongqing
AU - Chi, Runqiang
AU - Cai, Yuan
AU - Huang, Yefei
PY - 2019/4/4
Y1 - 2019/4/4
N2 - Micro-damage, from dimples through micro-voids to micro-cracks, are formed underneath the pitting damage due to the debris cloud hypervelocity impact (HVI). Evaluation of this specific type of micro-damage is far beyond the detectability of conventional approaches using guided ultrasonic waves (GUWs), because the large number of micro-voids in the pitting damage region cause highly complex. Targeting the quantitative characterization of these micro-voids, an analytical model is developed to interpret the generation of high-order modes when a GUW traversing from the perspective of linear and nonlinear GUW features. Validation of this theoretical analysis is ascertained via numerical simulation. On this basis, an evaluation framework is developed whereby the micro-voids can be quantitatively depicted.
AB - Micro-damage, from dimples through micro-voids to micro-cracks, are formed underneath the pitting damage due to the debris cloud hypervelocity impact (HVI). Evaluation of this specific type of micro-damage is far beyond the detectability of conventional approaches using guided ultrasonic waves (GUWs), because the large number of micro-voids in the pitting damage region cause highly complex. Targeting the quantitative characterization of these micro-voids, an analytical model is developed to interpret the generation of high-order modes when a GUW traversing from the perspective of linear and nonlinear GUW features. Validation of this theoretical analysis is ascertained via numerical simulation. On this basis, an evaluation framework is developed whereby the micro-voids can be quantitatively depicted.
KW - Debris cloud
KW - Guided ultrasonic wave (GUW)
KW - Hypervelocity impact (HVI)
KW - Micro-voids
UR - http://www.scopus.com/inward/record.url?scp=85064769213&partnerID=8YFLogxK
U2 - 10.1109/SPAWDA.2019.8681862
DO - 10.1109/SPAWDA.2019.8681862
M3 - Conference article published in proceeding or book
AN - SCOPUS:85064769213
T3 - Proceedings of the 2019 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
BT - Proceedings of the 2019 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
Y2 - 11 January 2019 through 14 January 2019
ER -