Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Numerical Analysis of the Main Wave Propagation Characteristics in a Steel-CFRP Laminate Including Model Order Reduction

Version 1 : Received: 1 June 2022 / Approved: 2 June 2022 / Online: 2 June 2022 (04:41:42 CEST)

A peer-reviewed article of this Preprint also exists.

Mikhaylenko, A.; Rauter, N.; Bellam Muralidhar, N.K.; Barth, T.; Lorenz, D.A.; Lammering, R. Numerical Analysis of the Main Wave Propagation Characteristics in a Steel-CFRP Laminate Including Model Order Reduction. Acoustics 2022, 4, 517-537. Mikhaylenko, A.; Rauter, N.; Bellam Muralidhar, N.K.; Barth, T.; Lorenz, D.A.; Lammering, R. Numerical Analysis of the Main Wave Propagation Characteristics in a Steel-CFRP Laminate Including Model Order Reduction. Acoustics 2022, 4, 517-537.

Journal reference: Acoustics 2022, 4, 32
DOI: 10.3390/acoustics4030032

Abstract

Guided ultrasonic waves are suitable for use in the context of structural health monitoring of thin-walled, plate-like structures. Hence, observing the wave propagation in the plates can provide an indication of whether damage has occurred in the structure. In this work, the wave propagation in fiber metal laminate consisting of thin steel foils and layers of carbon fiber-reinforced polymer is studied, focusing on the main propagation characteristics like dispersion diagrams and displacement fields. For this purpose, the dispersion diagrams derived from the analytical framework and numerical simulations are first determined and compared to each other. Next, the displacement fields are computed using the global matrix method for two excitation frequencies. The results derived from the analytical framework is used to validate numerically determined displacement fields based on a 2D and a 3D modeling approach. For both investigations the results of the analytical treatment and the numerical simulation show good agreement. Furthermore, the displacement field reveals the typical and well-known characteristics of the propagation of guided waves in thin-walled structures. Since the use of full 3D models involves a very high computational cost, this work also successfully investigates the possibility for model order reduction to decrease the computational time and costs of the simulation without the loss of accuracy.

Keywords

guided ultrasonic waves; fiber metal laminate; dispersion diagram; displacement field

Subject

ENGINEERING, Mechanical Engineering

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.

We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.