Recent content by randall016

Thank you for the comment. I was not aware of the preflexing issue. Would this need to be done every time before taking measurements or just an initial break in? Everything is already temperature compensated.

I calculated 590MPa maximum stress (85,000 PSI). I am designing a flexure made of BeCu that a strain gage is mounted on. My max deflection is known so I used euler-bernoulli beam theory to calculated the deflection for a point load (y(x=L)=PL^3/3EI. I solved for P and substituted it into the...

I am calculating the strain in a cantilever beam with a point load for a given deflection. The deflection is around .5mm for a beam that is just over 5mm long (width is 3.8mm and height is 0.15mm). I was told for the assumption of small deflections to be valid, deflection should be 2% of the...

Alright thanks and the reason is for designing a displacement transducer. I know the working range so I want to optimize the strain in order to get the largest signal/noise ratio with a strain gauge.

So my approach is correct? Is there a better way to derive this relationship?

I am trying to derive the strain at the base of a cantilever beam with a known deflection. I know the bending stress is equal to Mc/I, so the strain is Mc/IE, where c is the distance from the neutral axis. For a point load ,P, the strain would then be PL/IE. Since the deflection is known I...