Lamb Wave Propagation-based Damage Identification for Quasi-isotropic CF/EP Composite Laminates Using Artificial Neural Algorithm: Part I - Methodology and Database Development

2005 ◽  
Vol 16 (2) ◽  
pp. 97-111 ◽  
Author(s):  
Zhongqing Su ◽  
Lin Ye
Keyword(s):  
Wave Propagation ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Damage Identification ◽  
Database Development ◽  
Artificial Neural ◽  
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

Lamb Wave Propagation in Anisotropic Laminates

1990 ◽  
Vol 57 (4) ◽  
pp. 923-929 ◽  
Author(s):  
G. R. Liu ◽  
J. Tani ◽  
K. Watanabe ◽  
T. Ohyoshi
Keyword(s):  
Wave Propagation ◽  
Energy Distribution ◽  
Hybrid Composite ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Strain Energy ◽  
Lamb Waves ◽  
Energy Distributions ◽  
Phase Velocities ◽  
Lamb Wave Propagation

The wave propagation in arbitrary anisotropic laminates is investigated on the basis of an exact theory. The dispersion relations of Lamb waves are determined for graphite/epoxy symmetric angle-ply laminates and hybrid composite ones which consist of carbon/epoxy and glass/epoxy layers. The dispersion and anisotropy of phase velocities for fundamental modes are discussed in detail. The energy distributions in the thickness direction of laminates are calculated for each kind of Lamb wave. A hybrid composite laminate is found to have better capability in absorbing impact energy by analyzing the strain energy distribution during the wave propagation. The results of the strain energy distribution are useful in determining the arrangement and the fiber orientation of the layers of hybrid composite laminates.

Visualization studies of Lamb wave propagation and interactions with anomalies in composite laminates using air-coupled ultrasonics

2014 ◽  
Author(s):  
V. S. Sasanka Durvasula ◽  
Vivek Madhavan ◽  
Janardhan Padiyar M ◽  
N. V. Giridharan ◽  
Krishnan Balasubramaniam
Keyword(s):  
Wave Propagation ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Lamb Wave Propagation ◽  
Air Coupled Ultrasonics
Sign in / Sign up

Export Citation Format

Share Document