Abstract
A parametric study of guided mechanical wave propagation in laminated safety glass (windshields) is presented. Laminated safety glass is considered a three layered structure modeled as a viscoelastic layer bonded by two elastic layers, i.e., glass plates. The interface between each of the two bonded layers is modeled as a bed of longitudinal and shear linear springs. The spring constants are estimated using surface analysis in conjunction with atomic force microscopy and profilometer analysis. Attenuation due to material absorption of the viscoelastic interlayer is considered while calculating the dispersion curves for the system. The dependence of phase and energy velocities, attenuation, and resonance frequencies, upon variations of material properties (e.g., modulus of elasticity, Poisson's ratio, and longitudinal and shear ultrasonic material attenuation) is discussed. The relative physical dimensions (i.e., layer thickness variation of each layer) influence upon guided wave behavior is also presented and discussed. Results are applicable to any similar three-layer laminated structure.
| Original language | English (US) |
|---|---|
| Article number | 69322O |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 6932 |
| DOIs | |
| State | Published - Jun 3 2008 |
| Event | Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008 - San Diego, CA, United States Duration: Mar 10 2008 → Mar 13 2008 |
Keywords
- Attenuation
- Guided waves
- Laminated safety glass
- Windshields
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering