Originally Posted by
Bad Lag
I was thinking of hysteresis in terms of energy loss per cycle. The time delay (dynamic lag) is an "instantaneous" delay within the cycle.
Push a spring hard and fast. It compresses instantaneously but it also rebounds (car suspension) but it never gives back everything you put into it. The energy lost contributes to making the spring heat up and fatigue.
I get that there's loss, there has to be. But we all appreciate steel's ability to tolerate some flex for decades before weakening and it's the fact that the tempo can change the efficiency of the steel to minimize loss and return variable amounts of the original input that I find interesting.