Discretize or Use integration points

aliirmak · Post by **aliirmak** » Fri Feb 15, 2008 1:32 am

Which one is a better approach to solve a pushover analysis?

Discretize the elements into smaller elements using nodes or use about 5 integration points for the elements?

Thanks for the help

silvia · Post by **silvia** » Fri Feb 15, 2008 8:18 am

use 5 integration points with the force-based element, which is the optimal number.

aliirmak · Post by **aliirmak** » Mon Feb 18, 2008 6:09 am

Thanks a lot for the answer.

The two modeling styles i proposed above may give different results which is varying up to %15 so far. Definitely, elements having 5 integration points are more accurate.

So far, displacement based element with 5 ip was the best when i compared analytical results with experimental data. After i review material properties in my model, I will be able to tell distinctly which one (force based or displacement based) works for me best.