Frishmuth Consulting
Services, LLC
Dr. Ronald Frishmuth,
P.E.
P.O. Box 1624 Boerne, TX 78006
Phone: (2817703598
FAX: (210) 5492541
For further information:
info@appliedmechanics.net

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.
