Dynamic stress concentration in a ribbed plate using the acoustical wave propagator technique

Autor:	S.Z. Peng
Rok vydání:	2005
Předmět:	Chebyshev polynomials Acoustics and Ultrasonics Scattering Mechanical Engineering Mathematical analysis Fast Fourier transform Propagator Geometry Classification of discontinuities Condensed Matter Physics Distribution (mathematics) Flexural strength Mechanics of Materials Plate theory Mathematics
Zdroj:	Journal of Sound and Vibration. 279:75-88
ISSN:	0022-460X
DOI:	10.1016/j.jsv.2003.11.016
Popis:	This paper presents an explicit acoustical wave propagator technique to investigate the flexural wave scattering and dynamic stress concentration in a ribbed plate based on Mindlin plate theory. A scheme combining Chebyshev polynomial expansion and fast Fourier transformation is introduced to implement the operation of the acoustical wave propagator. The exact analytical solutions are also presented to demonstrate the validity of the present technique. The wave propagation patterns are used to investigate the effect of rib on the flexural wave scattering and distribution of dynamic stress concentration. Dynamic stress concentration factors around the discontinuities are examined in detail.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7122e3e2a40b984cd978798f8c29d37 https://doi.org/10.1016/j.jsv.2003.11.016 Zobrazit plný text záznamu Full Text from ScienceDirect