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Download fileThe study of localized crack-induced effects of nonlinear vibro-acoustic modulation
journal contribution
posted on 2023-03-14, 13:19 authored by Dariusz Broda, Krzysztof Mendrok, Vadim SilberschmidtVadim Silberschmidt, Lukasz Pieczonka, Wieslaw J StaszewskiThe 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
MaterialsVolume
16Issue
4Publisher
MDPIVersion
- VoR (Version of Record)
Rights holder
© The authorsPublisher 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
2023-02-03Publication date
2023-02-16Copyright date
2023eISSN
1996-1944Publisher version
Language
- en