Abstract
Some aspects of numerical simulation of Lamb wave propagation in composite laminates using the finite element models with explicit dynamic analysis are addressed in this study. To correctly and efficiently describe the guided-wave excited/received by piezoelectric actuators/sensors, effective models of surface-bounded flat PZT disks based on effective force, moment and displacement are developed. Different finite element models for Lamb wave excitation, collection and propagation in isotropic plate and quasi-isotropic laminated composite are evaluated using continuum elements (3-D solid element) and structural elements (3-D shell element), to elaborate the validity and versatility of the proposed actuator/sensor models.
Original language | English |
---|---|
Pages (from-to) | 267-275 |
Number of pages | 9 |
Journal | Composite Structures |
Volume | 75 |
Issue number | 45383 |
DOIs | |
Publication status | Published - 2006 |
Keywords
- Lamb waves
- composite materials
- finite element method
- piezoelectric devices
- structural health monitoring