First of all, let me tell you I don't know much about physics, engineering etc. I know a little bit of math, through Calculus. I also know a little bit about Electronics. Anyways on to the questions! Let's say I have a hollow steel shaft. Strain gages have been applied for measuring torque. Now if I know the Zero load microstrain, Gage Factor, Inner and Outer Diameter of the shaft, Gage resistances. Am I able to calclulate and estimate what my total bridge output, and Actual strain is at a certain clockwise torque in NM applied to the shaft. How can I determine breaking points for X amount of cycles. These questions may be a little vague, and for that I'm sorry. I'm trying to figure out how a piece of software I have, calculates this type of information. Any help or information about this would be greatly appreciated. Thank you!