Loughborough University
Browse
materials-16-01653.pdf (4.26 MB)

The study of localized crack-induced effects of nonlinear vibro-acoustic modulation

Download (4.26 MB)
journal contribution
posted on 2023-03-14, 13:19 authored by Dariusz Broda, Krzysztof Mendrok, Vadim SilberschmidtVadim Silberschmidt, Lukasz Pieczonka, Wieslaw J Staszewski
The nonlinear interaction of longitudinal vibration and ultrasound in beams with cracks is investigated. The central focus is on the localization effect of this interaction, i.e., the locally enhanced nonlinear vibro-acoustic modulation. Both numerical and experimental investigations are undertaken. The finite element (FE) method is used to investigate different crack models, including the bi-linear crack, open crack, and breathing crack. A parametric study is performed considering different crack depths, locations, and boundary conditions in a two-dimensional beam model. The study shows that observed nonlinearities (i.e., nonlinear crack–wave modulations) are particularly strong in the vicinity of the crack, allowing not only for crack localization but also for the separation of the crack-induced nonlinearity from other sources of nonlinearity.

Funding

Foundation for Polish Science under the research project WELCOME no. 2010-3/2, operated within the Innovative Economy Operational Programme 2007–2013

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Materials

Volume

16

Issue

4

Publisher

MDPI

Version

  • VoR (Version of Record)

Rights holder

© The authors

Publisher statement

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Acceptance date

2023-02-03

Publication date

2023-02-16

Copyright date

2023

eISSN

1996-1944

Language

  • en

Depositor

Prof Vadim Silberschmidt. Deposit date: 14 March 2023

Article number

1653

Usage metrics

    Loughborough Publications

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC