I wasn't suggesting that photoelasticity is not a valuable tool. I'm
just not sure if the setup is good enough for analysis of stress
concentrations to yield numerical results. I've never personally used
it.
Roger
On 26 Feb 2009, at 1:24 PM, Per Öfverbeck wrote:
26 feb 2009 kl. 19.32 skrev Roger Eichhorn:
.... Flexing the Lexan slightly increases the effect as the stress
increases. I'm not familiar enough with the technique to know
whether or not it's suitable for analysis of stress concentrations.
It is indeed eminently suitable, and has been extensively used for
this very purpose, with plexiglass models of structural details.
Today, computer modelling has taken over, but it is still a
suggestive educational method.
Per Öfverbeck
http://elgfoto.se
"In a world without walls or fences, who needs Windows or Gates"
