Originally Posted by
Mark Kelly
Yeah there is and you don't need a strain gauge.
The law of conservation of energy requires that any lost strain energy show up as heat. All you have to do is measure the temperature of the frame at the bottom bracket before and after climbing a big hill.
You're assuming that the lost energy accumulates and stores itself as heat in the bottom bracket, that there's no dissipation to other parts of the frame or drivetrain, and that there's no heat loss to atmosphere over the duration of the climbs.
Those assumptions would not withstand any peer review.
Resonant frequency...I'm not sure what you're looking for here as it relates to anything practical. There's a huge amount of variability in damping; material, layup. shaping.
Whatever. I'm just an idiot bike racer.