Susan re. "Shear"

[Keith Roberts]

You're right. I should have said 'and still be called a shear force as long
as they are parallel and opposing directions. For our reference the bridge
top is one plane and the string trying to slide across it is in another. I
apologize if I confused the issue. Scissors shear what it is cutting as the
forces are not in the same plane vs wire cutters in which the forces are in
the same plane. Clear as mud?
Keith R
----- Original Message -----
From: "Ron Nossaman" <RNossaman@cox.net>
To: <pianotech@ptg.org>
Sent: Wednesday, July 31, 2002 6:19 PM
Subject: Re: Susan re. "Shear"


>
> >The dictionary I have says shear forces are two parallel forces acting in
> >opposite directions. The direction of these forces relative to our plane
of
> >reference can be in any direction.
> >Keith R
>
> And if the plane of reference isn't parallel to the parallel forces in
> opposition, where's the shear relative to our plane of reference? If there
> is no continuity in criteria for comparison, what bloody good is the
> comparison? That's the point.
>
>
> Ron N
>
>