The enforcement of bonding interactions between sets of shell elements
that have a physical gap is more robust.
The image above shows
a
model with three shell
surfaces.
One pair of shells has a physical gap of
1mm, while the
second pair of shells has a gap of
1.1mm. By
setting a user-defined Maximum gap for bonding to
1mm
(the
maximum gap between geometric entities to enforce local bonding interactions), only the
pair of shells with a gap of
1mm should be
bonded.
An improved algorithm enforces the proper
bonding interactions irrespective of the
mesh
size.
In
previous
releases, if you applied a coarse shell mesh to the three surfaces, the algorithm
erroneously
enforced a bonding interaction to the second shell pair with
a
1.1mm
gap.