TY - JOUR
T1 - Guided wave based nondestructive analysis of localized inhomogeneity effects in an advanced sandwich composite structure
AU - Sikdar, Shirsendu
AU - Banerjee, Sauvik
N1 - Funding Information:
The authors acknowledge the support from the Polish National Science Centre (NCN), Poland under grant agreement number UMO-2018/29/B/ST8/02904 in the frame of the OPUS 15 project. The authors also wish to acknowledge the support from the Indian Space Research Organization (ISRO), India under grant agreement number 11ISROC001.
Funding Information:
The authors acknowledge the support from the Polish National Science Centre (NCN), Poland under grant agreement number UMO-2018/29/B/ST8/02904 in the frame of the OPUS 15 project. The authors also wish to acknowledge the support from the Indian Space Research Organization (ISRO), India under grant agreement number 11ISROC001 .
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/11/1
Y1 - 2019/11/1
N2 - In this paper, we present a nondestructive analysis of localized inhomogeneity effects on guided wave propagation in an advanced sandwich composite structure. In the process, guided wave dispersion curves were semi-analytically determined for the structure to accurately identify different wave modes in experimental and numerical analysis signals. Finite element simulation of wave propagation in the target structure was then carried out in ABAQUS and validated with the experiment. Significant influences on the wave mode amplitudes were observed due to the presence of a localized inhomogeneity in the structure. An inhomogeneity identification strategy was prepared based on the amplitude changes in the registered guided wave signals from a predefined piezoelectric transducer network. The influence of varying elastic modulus and mass-density of the inhomogeneous region on the wave mode amplitudes and the corresponding inhomogeneity-index magnitudes were also studied.
AB - In this paper, we present a nondestructive analysis of localized inhomogeneity effects on guided wave propagation in an advanced sandwich composite structure. In the process, guided wave dispersion curves were semi-analytically determined for the structure to accurately identify different wave modes in experimental and numerical analysis signals. Finite element simulation of wave propagation in the target structure was then carried out in ABAQUS and validated with the experiment. Significant influences on the wave mode amplitudes were observed due to the presence of a localized inhomogeneity in the structure. An inhomogeneity identification strategy was prepared based on the amplitude changes in the registered guided wave signals from a predefined piezoelectric transducer network. The influence of varying elastic modulus and mass-density of the inhomogeneous region on the wave mode amplitudes and the corresponding inhomogeneity-index magnitudes were also studied.
KW - Advanced sandwich composite structure
KW - Dispersion
KW - Guided wave
KW - Localized inhomogeneity
KW - Non-destructive analysis
KW - Piezoelectric transducer
UR - http://www.scopus.com/inward/record.url?scp=85068843856&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2019.107195
DO - 10.1016/j.compositesb.2019.107195
M3 - Article
AN - SCOPUS:85068843856
VL - 176
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
SN - 1359-8368
M1 - 107195
ER -