Hi Chaps
This is my first post on here so please do tell me if I have the topic in the wrong section etc?
I have a problem whereby I have an axle on a crank arm which has a load imposed in a vertical direction. I'm looking to strain gauge the crank axle which is having the vertical load imposed on it as can be seen by the picture. The problem arrises where by you go out of plane of the strain gauge that is bonded to the axle, as you end up with the stress looking like it is reducing uptill it comes 90 DEG from vertical.
I've had thoughts about setting up three lots of strain gauges at 0 DEG, 45 DEG and 60 DEG and then looking at the equations but not sure where to start there.
Another idea is to attached two rosettes at 90DEG to each other as I'm not worried about the principle strain, just the maximum strain.
Any ideas of how to solve this problem?
This is my first post on here so please do tell me if I have the topic in the wrong section etc?
I have a problem whereby I have an axle on a crank arm which has a load imposed in a vertical direction. I'm looking to strain gauge the crank axle which is having the vertical load imposed on it as can be seen by the picture. The problem arrises where by you go out of plane of the strain gauge that is bonded to the axle, as you end up with the stress looking like it is reducing uptill it comes 90 DEG from vertical.
I've had thoughts about setting up three lots of strain gauges at 0 DEG, 45 DEG and 60 DEG and then looking at the equations but not sure where to start there.
Another idea is to attached two rosettes at 90DEG to each other as I'm not worried about the principle strain, just the maximum strain.
Any ideas of how to solve this problem?
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