Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

Guided waves behave much differently in inhomogeneous anisotropic plates than in homogeneous anisotropic plates. It has been reported before that guided waves in inhomogeneous plates tend to follow preferred directions based on the location of ply-groups as well as the orientation of the fibers [1]. The pattern obtained by imaging the leaked energy into the surrounding fluid (earlier called as Plate Wave Flow Patterns) has been shown to indicate fiber orientations [2]. In this paper, a model based on the Thomson-Haskell transfer matrix is employed to obtain the internal distributions of the energy vector within the inhomogeneous plate. Based on the theoretical results, the plate wave flow patterns can be predicted and compared with the experimental results. The results provide insight into the understanding of the generation mechanism of guided wave mode patterns in inhomogeneous plates.

Volume

15A

Chapter

Chapter 1: Standard Techniques

Section

UT Guided Wave Propagation

Pages

217-222

DOI

10.1007/978-1-4613-0383-1_27

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Guided Wave Behavior Analysis in Multi-Layered Inhomogeneous Anisotropic Plates

Seattle, WA

Guided waves behave much differently in inhomogeneous anisotropic plates than in homogeneous anisotropic plates. It has been reported before that guided waves in inhomogeneous plates tend to follow preferred directions based on the location of ply-groups as well as the orientation of the fibers [1]. The pattern obtained by imaging the leaked energy into the surrounding fluid (earlier called as Plate Wave Flow Patterns) has been shown to indicate fiber orientations [2]. In this paper, a model based on the Thomson-Haskell transfer matrix is employed to obtain the internal distributions of the energy vector within the inhomogeneous plate. Based on the theoretical results, the plate wave flow patterns can be predicted and compared with the experimental results. The results provide insight into the understanding of the generation mechanism of guided wave mode patterns in inhomogeneous plates.