Re: [Phys-l] stressed beam stiffness analysis with one end fixed

[Brian Whatcott <betwys1@sbcglobal.net>]

At 05:52 PM 8/1/2008, bc, you wrote:
> I am having great difficulty in analyzing the stiffness of a beam
> fixed at one end and the load at the free end, no that's easy; add
> the beam is under tension
>
> 1, will the curvature differ from the unstressed beam and
> 2, will that be the only reason the stiffness will differ.
>
> bc
>
> p.s. don't worry about how the stress is applied, only that it is
> perpendicular to the end face, always.


In the case of a pneumatic cantilever - the tension preload
is the reason that the beam can withstand an end load at all,
so that in this case, answer 1 is yes, and answer 2
 is (I guess) yes


Brian Whatcott    Altus OK    Eureka!