Simplified modeling method of impact damage for numerical simulation of Lamb wave propagation in quasi-isotropic composite structures

2020 ◽  
Vol 243 ◽  
pp. 112150 ◽  
Author(s):  
Peiwen Deng ◽  
Osamu Saito ◽  
Yoji Okabe ◽  
Hideki Soejima
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Lamb Wave ◽  
Composite Structures ◽  
Impact Damage ◽  
Modeling Method ◽  
Isotropic Composite ◽  
Simplified Modeling ◽  
Lamb Wave Propagation

Some aspects of numerical simulation for Lamb wave propagation in composite laminates

2006 ◽  
Vol 75 (1-4) ◽  
pp. 267-275 ◽  
Author(s):  
Chunhui Yang ◽  
Lin Ye ◽  
Zhongqing Su ◽  
Michael Bannister
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Lamb Wave Propagation

scholarly journals Numerical Simulation of the Lamb Wave Propagation in Impacted CFRP Laminate

2016 ◽  
Vol 167 ◽  
pp. 109-115 ◽  
Author(s):  
A. De Luca ◽  
Z. Sharif-Khodaei ◽  
M.H. Aliabadi ◽  
F. Caputo
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Lamb Wave ◽  
Cfrp Laminate ◽  
Lamb Wave Propagation

Numerical simulation of Lamb wave propagation in metallic foam sandwich structures: a parametric study

2013 ◽  
Vol 97 ◽  
pp. 387-400 ◽  
Author(s):  
Seyed Mohammad Hossein Hosseini ◽  
Abdolreza Kharaghani ◽  
Christoph Kirsch ◽  
Ulrich Gabbert
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Parametric Study ◽  
Lamb Wave ◽  
Sandwich Structures ◽  
Metallic Foam ◽  
Lamb Wave Propagation

scholarly journals The numerical simulation of Lamb wave propagation in laser welding of stainless steel

2017 ◽  
Vol 274 ◽  
pp. 012128
Author(s):  
Bo Zhang ◽  
Fang Liu ◽  
Chang Liu ◽  
Jingming Li ◽  
Baojun Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
Wave Propagation ◽  
Laser Welding ◽  
Lamb Wave ◽  
Lamb Wave Propagation

scholarly journals Non-Contact Ultrasonic Inspection of Impact Damage in Composite Laminates by Visualization of Lamb wave Propagation

2018 ◽  
Vol 9 (1) ◽  
pp. 46 ◽  
Author(s):  
Nobuyuki Toyama ◽  
Jiaxing Ye ◽  
Wataru Kokuyama ◽  
Shigeki Yashiro
Keyword(s):  
Wave Propagation ◽  
Lamb Wave ◽  
Impact Damage ◽  
Ultrasonic Transducer ◽  
Ultrasonic Inspection ◽  
Laser Doppler Vibrometer ◽  
Low Velocity Impact ◽  
Signal Averaging ◽  
Cfrp Laminates ◽  
Lamb Wave Propagation

This study demonstrates a rapid non-contact ultrasonic inspection technique by visualization of Lamb wave propagation for detecting impact damage in carbon fiber reinforced polymer (CFRP) laminates. We have developed an optimized laser ultrasonic imaging system, which consists of a rapid pulsed laser scanning unit for ultrasonic generation and a laser Doppler vibrometer (LDV) unit for ultrasonic reception. CFRP laminates were subjected to low-velocity impact to introduce barely visible impact damage. In order to improve the signal-to-noise ratio of the detected ultrasonic signal, retroreflective tape and a signal averaging process were used. We thus successfully visualized the propagation of the pulsed Lamb A0 mode in the CFRP laminates without contact. Interactions between the Lamb waves and impact damage were clearly observed and the damage was easily detected through the change in wave propagation. Furthermore, we demonstrated that the damage could be rapidly detected without signal averaging. This method has significant advantages in detecting damage compared to the conventional method using a contact resonant ultrasonic transducer due to the absence of the ringing phenomenon when using the LDV.

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