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Summary: ABSTRACT
Title of Thesis: Analysis and Evaluation of a Shell Finite
Element with Drilling Degree of Freedom
Name of degree candidate: Lanheng Jin
Department of Civil Engineering
and Institute for System Research
University of Maryland at College Park
Degree and Year: Master of Science, 1994
Thesis directed by: Dr. Mark A. Austin
Associate Professor
Department of Civil Engineering
and Institute for System Research
University of Maryland at College Park
A at shell nite element is obtained by superposing plate bending and mem-
brane components. Normally, shell elements of this type possess ve degrees of
freedom DOF, three displacement DOF, u, v and w, and two in-plane rotation
DOF, x and y, at each node. A sixth degree of freedom, z, is associated with
the shell normal rotation, and is not usually required by the theory. In practice,
however, computational and modeling problems can be caused by a failure to
include this degree of freedom in nite element models.
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