Seismosoft | Earthquake Engineering Solutions

Many thanks, I had not thought about this issue.
Angelica

<t>Good morning,<br/>
I am trying to model a simple column element (0.1m x 0.1m x 1.2m) with a single bar (d16) to perform a Static time-history analysis.<br/>
I'm simply imposing a vertical displacement (0.01m, in tension and then return to zero). The base node is fixed and x,y and rz are ...

<t>Hi Matt Fox,<br/>
<br/>
Your concern is correct. Also (I wonder if that can help you in any way...), recall the occurrence of softening - i.e., in the components of the stiffness matrix related to the material behaviour - can lead to unrealistic negative damping forces (unrealistic energy input ...

<t>Hello TUC,<br/>
<br/>
I think it is now clear that SeismoSoft wants to guide analysts towards clever modeling options, leaving aside those that either do not make much sense or that would simply represent a waste of computing time.<br/>
<br/>
Regarding your question of whether it is preferable to ...

<t>Hi again TUC,<br/>
<br/>
Thanks for your reply and interest in this subject, the curiosity of people like you help fostering discussion and spreading knowledge among researchers and practitioners. I appreciate you forwarding me this paper, which I read with pleasure. Here are my comments: <br ...

<t>Hi TUC,<br/>
<br/>
Your answer is not really correct, in a straightforward way here's how things work:<br/>
<br/>
- Displacement-based (infrmDB) element: it corresponds to the classical finite element (first in chronological order), wherein certain displacement functions define the displacement ...

<t>Hi,<br/>
<br/>
You may also want to take a look at the following paper:<br/>
<br/>
EDOARDO COSENZA and ANDREA PROTA, EXPERIMENTAL BEHAVIOUR AND NUMERICAL MODELLING OF SMOOTH STEEL BARS UNDER COMPRESSION, Journal of Earthquake Engineering, Vol. 10, No. 3 (2006) 313–329<br/>
<br/>
Cheers,<br/>
<br ...

<t>Hi,<br/>
<br/>
Just to complement this discussion, I should stress that there are reasons for the fact that the number of integration sections in the “infrmDB” element is two and the integration scheme is Gauss-Legendre. Basically, since displacement-based elements use a cubic shape function for ...

<t>Dear Sabrina,<br/>
<br/>
Let me try to give you some additional hints.<br/>
<br/>
Elements “infrmFBPH” can be used if you observe a softening response of your cantilever wall (that is, a post-peak range of behavior that is of interest), as it will allow you to define the length over which the ...