I Have got a problem. I am trying to replicate of finding out "Natural frequency of the I-40 Bridge over Rio grande" results which was done and reported by C.R.Farrar et al. I tried the way he proceeded but not matching with the results I got from Abaqus.
Hello All:
I am running a simple thermal tension coupon test with two steps.
Step 1: Apply a 10 lbs load on the coupon at certain temp.
Step 2: Keep the strain constant and reduce temp ( the material would
try to contract but I must keep the strain constant by increasing load)
Is there a way for me to do step 2 in abaqus and have it predict the load or stress required to maintain constant strain?
I would appreciate your comments? Thanks
Very urgent two enquires:
1. How to model rotational spring element in order to define a curve
like M=k*(theta) where theta is the rotaional angle? It seems that
abaqus could only provide F=kx model.
2. there is a dashpot connector element which behaves like F=C * V
(where C is a constant), can I ask how to model F=C*(dv/dt)=C*a(where a
is the derivative of change of velocity)?
Thanks.
