Universiti Teknologi Malaysia Institutional Repository

Simulation of lamb wave reflections at plate edges using the semi-analytical finite element method

Ahmad, Zair Asrar and Gabbert, Ulrich (2012) Simulation of lamb wave reflections at plate edges using the semi-analytical finite element method. Ultrasonics, 52 (7). pp. 815-820. ISSN 0041-624X

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Official URL: http://dx.doi.org/10.1016/j.ultras.2012.05.008

Abstract

In typical Lamb wave simulation practices, effects of plate edge reflections are often not considered in order to simplify the wave signal interpretations. Methods that are based on infinite plates such as the semi-analytical finite element method is effective in simulating Lamb waves as it excludes the effect of plate edges. However, the inclusion of plate edges in a finite plate could render this method inapplicable, especially for transient response simulations. Here, by applying the ratio of Lamb mode reflections at plate edges, and representing the reflection at plate edges using infinite plate solutions, the semi-analytical finite element method can be applied for transient response simulation, even when the plate is no longer infinite.

Item Type:Article
Uncontrolled Keywords:edge reflection, finite plate, lamb wave
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:47505
Deposited By: Narimah Nawil
Deposited On:22 Jun 2015 05:56
Last Modified:05 Mar 2019 02:53

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