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A 2D hybrid stress element for improved prediction of the out-of-plane fields using Fourier expansion

journal contribution
posted on 06.12.2017, 00:00 by Miao Lin Feng, QZ Xiao, Manicka Dhanasekar
Recently we formulated a 2D hybrid stress element from the 3D Hellinger-Reissner principle for the analysis of thick bodies that are symmetric to the thickness direction. Polynomials have typically been used for all the displacement and stress fields. Although the element predicted the dominant stress and all displacement fields accurately, its prediction of the out-of-plane shear stresses was affected by the very high order terms used in the polynomials. This paper describes an improved formulation of the 2D element using Fourier series expansion for the out-of-plane displacement and stress fields. Numerical results illustrate that its predictions have markedly improved.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

13

Issue

5

Start Page

491

End Page

504

Number of Pages

14

eISSN

1598-6217

ISSN

1225-4568

Location

Korea

Publisher

Techo-Press

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Faculty of Engineering and Physical Systems; Zhongguo ke xue ji shu da xue;

Era Eligible

No

Journal

Structural engineering and mechanics.

Exports