A8-b2 - Numerical study of nonlinear guided waves in composite laminate with matrix crack
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- A8-a - Nonlinear Acoustics and Ultrasonics
- Author(s)
- N. Tao, R. Tao, R. M. Groves, N. Yue - Delft University of Technology,Delft (Netherlands), M. Dziendzikowski - Air Force Institute of Technology,Warsaw (Poland)
- Pages
- 82 - 85
- DOI
- 10.5162/Ultrasonic2025/A8-b2
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
This work studies nonlinear guided waves for the detection of matrix cracks in composites. Finite element modelling is used to simulate a 2 mm-thick unidirectional GFRP with a 2 mm-long crack. The fundamental symmetric (S0) mode propagating perpendicular to the crack surface is investigated. The influence of different crack depths on the nonlinear guided waves is studied. Current results show that nonlinear responses only happen when a crack exists and that the nonlinear responses differ between a half-thickness and a through-thickness crack.