Skip to main content

Research Repository

Advanced Search

Wave propagation in pressurised composite structures with frequency band gap behaviour

Ampatzidis, Theofanis; Chronopoulos, Dimitrios

Authors

Theofanis Ampatzidis



Abstract

In engineering there are numerous examples of structures, such as train rails and airplane fuselages, that present periodicity in their geometry or mechanical properties. It has been observed that this periodicity leads to banded frequency response after excitation. These band gaps can be engineered to isolate noise and vibrations of the periodic structure.
In this paper an infinite composite sandwich beam with hollow and pressurised core cells as periodic band gap inducing factors was examined. Wave finite element (WFE) method was used to predict the effect of pressured core cells periodicity on wave propagation and band gaps generation. Three low order finite elements (FE) models were produced using commercially available FE software package. These models consisted of a small section of the simple sandwich beam with homogenous core, with hollow core and with pressurised hollow core.

Citation

Ampatzidis, T., & Chronopoulos, D. (2016). Wave propagation in pressurised composite structures with frequency band gap behaviour

Conference Name 2016 Leuven Conference on Noise and Vibration Engineering
End Date Sep 21, 2016
Acceptance Date Jun 2, 2016
Publication Date Sep 19, 2016
Deposit Date Jan 13, 2017
Publicly Available Date Jan 13, 2017
Peer Reviewed Peer Reviewed
Public URL http://eprints.nottingham.ac.uk/id/eprint/39840
Publisher URL https://www.isma-isaac.be/proceedings/papers/isma2016_0276.pdf
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf

Files


ampatzidis_isma2016_paper_author_version.pdf (251 Kb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations