From: Roger Turk <73527.1356(--nospam--at)compuserve.com>
Date: Fri, 16 Apr 1999 17:10:03 -0400
Karim Hosseinzadeh wrote:
. > I realize that there is certain stress concentration, but so what. My
. > belief always is that " MORE IS NOT LESS "
. > Another words why not just leave the parts as they are without lessening
. > them unless it is visually undesirable.
. > I would appreciate any comment.
Going back to Theory of Elasticity, the theoretical stress at a re-entrant
corner in a tension member is *infinity*, regardless of the average stress
level in the tension member. Therefore, you definitely do get, "MORE, NOT
LESS," and it turns out to be much, much more. Even with a round hole in a
tension member, the stress at the edge of the hole is 2 to 3 times the
average stress in the member.
A. Roger Turk, P.E.(Structural)