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Frishmuth Consulting Services, LLC
Dr. Ronald
Frismuth, P.E.
P.O. Box 690626
Houston, TX 77269-0626
Voice (281) 807-0203
FAX: (281) 807-9134
For further information:
info@applied-mechanics.net
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Finite Element Analysis
These three figures provide
typical examples of finite element analyses performed by Dr. Frishmuth
recently. The figure to the left is a three dimensional model of a segment
of a dog type connector. This model was constructed and loads applied so
that the stress concentration in the dog window could be established. One
half of the dog window is shown near the center of the model. The plane
that cuts the dog window in half is a plane of symmetry in the model.
The figure below is a shell
element model of a complex structural joint. Others constructed a global
model using beam elements and generated the forces and moments to be
imposed on this shell model. The shell model was necessary to correctly
define regions of high stress in this very complex joint. Although not
visible in the figure, there are several plates buried inside those shown.
The figure below is an
axisymmetric model of a typical clamp type connection. The locking ring to
the right of the figure is driven downward. The ring slides behind (to the
right) of the clamp segment. This action pulls the upper clamp flange and
the lower clamp flange toward each other and squeezes the seal (the small
part to the left of the figure) between the flanges. Analysis is necessary
in this type connection to establish the load to set the seal as well as
to predict the tension and bending capacity of the connection. Connectors
of many different designs are often analyzed in this fashion.
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