How to install strain gages in case of cyclic loading of a pipe
How to install strain gages in case of cyclic loading of a pipe
(OP)
Hi All
I have a pipe ( clamped from one side ) while a lateral load and a moment is being applied to the other end. due to the geometry difficulties, I need to install the strain gages near the loading end, where also the fracture happens. the loads are being applied in a harmonic regime under 10 Htz.
I would like to know how to install them ( orientations ) and calculations ( do they enter in polar coordinates ?) and possible errors and maximum temperature I can use a strain gage( this last one just for info)
I have a pipe ( clamped from one side ) while a lateral load and a moment is being applied to the other end. due to the geometry difficulties, I need to install the strain gages near the loading end, where also the fracture happens. the loads are being applied in a harmonic regime under 10 Htz.
I would like to know how to install them ( orientations ) and calculations ( do they enter in polar coordinates ?) and possible errors and maximum temperature I can use a strain gage( this last one just for info)





RE: How to install strain gages in case of cyclic loading of a pipe
You can also use an rosette gages in a variety of configurations to check shear, torque and eccentric loading.
Gages are made for a wide range of temperatures and exposures. You should be able to find a gage for almost any reasonable temperature range.
Calculations are straightforward and depend on the gages used, their gage factors, their length, etc....all of which are readily obtainable. As long as the material remains in the elastic stress range, the calculation is simply a stress-strain relationship for the particular material being used.
RE: How to install strain gages in case of cyclic loading of a pipe
Dik