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Geometrically nonlinear analysis of plane trusses and plane frames

<p>The results of this work are the closed-form expressions for the tangent and secant
stiffness matrices of the 3-node Mindlin frame element. From the study of two
solution methods and the behavior of the three elements, several conclusions have
been made as follows:</p>
<a>1. Because the Mindlin frame element uses quadratic polynoms for the
interpolation functions, at least two elements are needed for modelling a
member of a plane frame structure.</p>
<p>
2. The Mindlin frame element will give a more flexible structure due to
the shear deformation effect, but the effect is not always significant.</p>
<p>
3. The Mindlin frame element requires about twice degree-of-freedoms than
the Bernoulli-Euler frame element requirement.</p>
<p>
4. The formulation of tangent stiffness matrix can be simplified, in condition
that the internal forces calculations are done using the appropriate
nonlinear formulation. The calculation of the tangent stiffness matrix and
the internal element forces can be done using different formulations.</p> / Master of Science

Identiferoai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/40785
Date26 January 2010
CreatorsMadutujuh, Nathan
ContributorsCivil Engineering, Holzer, Siegfried M., Dolan, James Daniel, Kuppusamy, Thangavelu
PublisherVirginia Tech
Source SetsVirginia Tech Theses and Dissertation
Detected LanguageEnglish
TypeMaster's project
FormatBTD, application/pdf
RelationLD5655.V851_1991.M358.pdf

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