A triangular thin shell element for the linear analysis of stiffened composite structures
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Authors
Wilson, Edward
Cantin, Gilles
Subjects
Advisors
Date of Issue
1988-04
Date
Final Report for period Jan 1987 - Jun 1987
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
A three node flat shell element with six engineering displacement degree-of-freedom at each
node is developed. The basic formulation allows for the arbitrary location of the reference
surface in which the membrane forces and bending moments are fully coupled. The well-known,
highly accurate, DKT bending element is combined with a higher order membrane element in
order to obtain a consistent formulation. The higher order memebrane behavior is obtained
by the introduction of three additional normal rotational degree-of-freedom. This report
presents a summary of the theoretical steps involved in the development of the element. The
accuracy of the element is illustrated by the solution of several standard problems and a comparison of results with other thin shell elements. The FORTRAN 77 listing of the
subroutines which form the basic element matrices contain less than 300 statements and is
presented in order to illustrate that the computer implementation of the element is relatively simple.
Type
Technical Report
Description
Series/Report No
Department
Identifiers
NPS Report Number
NPS69-88-003
Sponsors
Prepared in conjunction with research conducted for the David W. Taylor Naval Ship R&D Center, Bethesda, MD.
Funder
Format
NA
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.