Damage localization in cross-ply laminated composite plates under varying temperature conditions using Lamb waves

2020 ◽  
Vol 31 (6) ◽  
pp. 064003 ◽  
Author(s):  
Anvesh R Nandyala ◽  
Ashish K Darpe ◽  
Satinder P Singh
Keyword(s):  
Lamb Waves ◽  
Laminated Composite ◽  
Composite Plates ◽  
Damage Localization ◽  
Laminated Composite Plates ◽  
Temperature Conditions

Lamb waves in laminated composite plates

1984 ◽  
Vol 76 (S1) ◽  
pp. S66-S66
Author(s):  
D. E. Chimenti ◽  
Adnan H. Nayfeh
Keyword(s):  
Lamb Waves ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates

Lamb-Wave-Based Damage Identification in Laminated Composite Plates

2014 ◽  
Vol 1014 ◽  
pp. 3-8
Author(s):  
Zai Lin Yang ◽  
Hamada M. Elgamal ◽  
Jian Wei Zhang
Keyword(s):  
Lamb Wave ◽  
Structural Damage ◽  
Damage Identification ◽  
Lamb Waves ◽  
Laminated Composite ◽  
Composite Plates ◽  
High Sensitivity ◽  
Scattered Wave ◽  
Propagation Path ◽  
Laminated Composite Plates

With advantages including capability of propagation over a significant distance and high sensitivity to abnormalities and inhomogeneity near the wave propagation path, Lamb waves can be energised to disseminate in a structure and any changes in material properties or structural geometry created by a discontinuity, boundary or structural damage can be identified by examining the scattered wave signals. This paper presents an overview of the Lamb-wave-based damage identification in laminated composite plates including the formulation of lamb waves in an isotropic plate.

Various types of defects detection in flat and curved laminated composite plates using nonintrusive Lamb wave system

2020 ◽  
pp. 1-18
Author(s):  
Lingyu Yu ◽  
Zhaoyun Ma
Keyword(s):  
Lamb Wave ◽  
Composite Structures ◽  
Lamb Waves ◽  
Laminated Composite ◽  
Composite Plates ◽  
Multidimensional Data ◽  
Laser Vibrometer ◽  
Wave System ◽  
Laminated Composite Plates ◽  
Data Acquisition And Processing

Abstract Composite materials are widely used in aerospace industries due to their light weight, strength, and various other desired properties. However, they are susceptible to various defects occurring during the manufacturing process or in service. Typical defects include porosity, wrinkles, and delamination. Nondestructive means of detection of the defects at any stage are of great importance to ensure quality and safety of composite structures. A nonintrusive removable Lamb wave system and accompanied methodology that is not material-dependent is presented in this paper to detect various types of typical defects in laminated composite plates, flat or curved. Through multidimensional data acquisition and processing, abnormality in waves caused by defects is captured and presented in inspection images. The methodologies are demonstrated in 2 cases: delamination in a curved plate, and wrinkles in a flat plate. Overall the results show that Lamb waves using the piezoelectric transducer and laser vibrometer system can be used for various types of defects inspection in flat or curved composite plates.

Damage localization in laminated composite plates using mode shapes measured by pulsed TV holography

2006 ◽  
Vol 76 (3) ◽  
pp. 272-281 ◽  
Author(s):  
J.V. Araújo dos Santos ◽  
H.M.R. Lopes ◽  
M. Vaz ◽  
C.M. Mota Soares ◽  
C.A. Mota Soares ◽  
...  
Keyword(s):  
Laminated Composite ◽  
Composite Plates ◽  
Mode Shapes ◽  
Damage Localization ◽  
Laminated Composite Plates
Sign in / Sign up

Export Citation Format

Share Document