Damage detection technique using ultrasonic guided waves and outlier detection: Application to interface delamination diagnosis of integrated circuit package

2021 ◽  
Vol 160 ◽  
pp. 107884
Author(s):  
Hyunseong Lee ◽  
Bonsung Koo ◽  
Aditi Chattopadhyay ◽  
Rajesh Kumar Neerukatti ◽  
Kuang C. Liu
DYNA ◽  
2014 ◽  
Vol 81 (186) ◽  
pp. 226 ◽  
Author(s):  
Rito Mijarez ◽  
Arturo Baltazar ◽  
Joaquín Rodríguez-Rodríguez ◽  
José Ramírez-Niño

2018 ◽  
Vol 51 (24) ◽  
pp. 941-948 ◽  
Author(s):  
Mahjoub El Mountassir ◽  
Gilles Mourot ◽  
Slah Yaacoubi ◽  
Didier Maquin

Sensors ◽  
2016 ◽  
Vol 16 (10) ◽  
pp. 1623 ◽  
Author(s):  
Liang Zeng ◽  
Jing Lin ◽  
Liping Huang ◽  
Ming Zhao

2012 ◽  
Vol 525-526 ◽  
pp. 433-436
Author(s):  
Hong Yuan Li ◽  
Hong Xu

The use of ultrasonic guided waves for damage detection suffers from the multi-modes and dispersion. Much attention has been paid to transducer design and excitation frequency chosen to suppress the multiple modes and dispersion. However, little attention has been paid to complex signal processing. In this paper, the dispersive propagation of the guided waves are firstly reviewed. And then the matching pursuit method is introduced as a feature extraction algorithm. In order to present well the characteristic of the guided waves signal, a dispersive dictionary is designed based on the guided waves propagation. A two-stage pursuit method consisted of coarse and fine matching is used. At last, the proposed method is verified by finite element simulation and successfully extracted damage related dispersive pulses from measured noisy signal.


2009 ◽  
Vol 417-418 ◽  
pp. 357-360 ◽  
Author(s):  
Erasmo Viola ◽  
Alessandro Marzani

This work presents a numerical simulation of the behavior of stress guided waves (GWs) propagating in a multilayer system composed of porous materials. To this end, the damped Semi-analytical Finite Element (SFE) formulation proposed in [1] is extended to take the dry porosity into account. An application of waves propagating in two squared aluminum bars jointed by a weaker layer of porous adhesive is presented. Numerical results show that variations of the adhesive's porosity modify the GWs spectro-temporal patterns. These changes could be exploited to detect the level of adhesive porosity in a total nondestructive manner for the above structures.


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