If I am performing a dynamic implicit analysis in ABAQUS with an input signal at the base with a timestep of dtsignal; how should I calculate my dtsolver?
Does ABAQUS interpolate the signal if the dtsolver
Abaqus analysis manual (analysis->dynamic stress displacement->explicit) has the answer of your question.
My main concern is the loading definition if the dtsolver is less than dtloading
The accuracy of implicit solver is dependent upon the increment size, which is in turn dependent on the tyep of analysis (quasi-static vs transient dynamics vs impact) and the excited modes of the structure of the structure. A general guideline for implicit solver is also given in abaqus analysis manual :)
My analysis is transient dynamic, I cannot see any guide lines in the manual that I understand atleast. I also dont see any explaination regarding using a time step for the solver less than the time step of the transient load
1) read again carefully "Implicit dynamic analysis" in abaqus analysis manual...this is general but will give you hint.
2) Go back to fundamentals of dynamic response and numerical algorithm.
3) If needed, read Concept and Applications of Finite Element Method" by Cook.
p.s. all these suggestions are based on assumption of you being a graduate student
In general, Abaqus interpolates all time-dependent quantities.
If your signal strongly varies over time, it may be neccessary to force abaqus to use small timesteps to capture all oscillations. You can also use time points to directly state times at which a solution has to be calculated.
Pls send me cae file or inp file of the video
https://www.youtube.com/watch?v=aPknctWkYuE
- Badges
- Science topic