Incidence-radiation condition of an artificial boundary

In this paper, the incidence-radiation composite boundary is presented for simulating the radiation condition on load incidence boundary. The theoretical foundations of the composite boundary are region-wise virtual work equations of wave motion in the finite and infinite domain. By studying the vir...

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Bibliographic Details
Published in:Computers & structures 1996-05, Vol.59 (4), p.743-749
Main Author: Wang, Huaizhong
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Geotechnics
Physics
Solid mechanics
Structural and continuum mechanics
Structure-soil interaction
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Vibrations and mechanical waves
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Summary:In this paper, the incidence-radiation composite boundary is presented for simulating the radiation condition on load incidence boundary. The theoretical foundations of the composite boundary are region-wise virtual work equations of wave motion in the finite and infinite domain. By studying the virtual work equations of changed domain and original domain, the correct boundary condition of wave motion problems concerning infinite domain is obtained. This revises the mistake caused by the current generally used method. Numerical results also show that the presented incidence-radiation composite boundary is very effective.
ISSN:0045-7949
1879-2243
DOI:10.1016/0045-7949(95)00289-8