Reply To: A question about quasi-static loading and oscillating response

[peteroznewman]

Andres, there are two sharp transitions that you should smooth out.  The first is at t=0 because the displacement before then is 0 then it suddenly becomes a ramp.  That is why I said a half period of a cosine function, the slope at t=0 is zero and the slope is zero again at the half period time.