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RESEARCH PAPERS

A Curved C0 Shell Element Based on Assumed Natural-Coordinate Strains

[+] Author and Article Information
K. C. Park, G. M. Stanley

Mechanics & Materials Engineering Laboratory, Lockheed Palo Alto Research Laboratory, Palo Alto, California 94304

J. Appl. Mech 53(2), 278-290 (Jun 01, 1986) (13 pages) doi:10.1115/1.3171752 History: Received March 15, 1985; Revised August 01, 1985; Online July 21, 2009

Abstract

A curved C 0 shell element is presented, which corrects several deficiencies in existing quadratic shell elements. The improvements realized in the present element include rank sufficiency without transverse shear locking, consistent membrane strain interpolation that admits inextensional bending without reduced integration, and adequate representation of curvature effects to capture the important membrane-bending coupling. The element can be constructed either by a nine-point integration rule or by a four-point integration rule with the proper rank compensating terms. Numerical experiments with the present element on several benchmark problems indicate that the element yields accurate and reliable solutions without any ostensible deficiency. The element is recommended for production analysis of shell structures.

Copyright © 1986 by ASME
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