Learning Forum

[Amith_Anoop_Kumar]

When I ran a simulation with static analysis and tarnsient analysis with same boundary conditions ,but in transient the same pressure load was given in steps but got lesser defromation and stress vales in transient compared to static. Why is that so

[Vigneswaran Sridharan]

Hi,
A static structural analysis determines the displacements, stresses, strains, and forces in structures or components caused by loads that do not induce significant inertia and damping effects.
On the other hand, a transient structural analysis (also called time-history analysis) is used to determine the dynamic response of a structure under the action of any general time-dependent loads. You can use it to determine the time-varying displacements, strains, stresses, and forces in a structure as it responds to any transient loads. The time scale of the loading is such that the inertia or damping effects are considered to be important.
Vignesh

[Amith_Anoop_Kumar]

so just on a short note as inertia and damping effects are considered hence we get lower stress values right. Thanks a lot

[peteroznewman]

The default analysis setting for Static Structural has Large Deflection turned Off.
The default analysis setting for Transient Structural has Large Deflection turned On.
Change Static Structural to have Large Deflection On and solve that model to see how the result changes and if it is closer to matching the Transient Structural model.
If the results don't match, then run the Transient Structural model for a longer end time and make sure damping is used and the results should converge on the new Static Structural result.

[Johnson Ezenwankwo]

Hello Peter, can I may you a question?

[peteroznewman]

Hello Johnson Ezenwankwo.

Yes, you may ask a question, but unless the title of this discussion is exactly what your question is about, it is best to start a New Discussion and provide a descriptive title and put a lot of detail in your post.

[Johnson Ezenwankwo]

Hello Peter, I did a simulation to obtain the homogenized properties of a UD RVE. XTension case comes out like so, with the edges pulled farther out than the other parts of the XFront. I feel something is not right as Abaqus gave different results both in deformation and values. 

[peteroznewman]

Hello Johnson Ezenwankwo,

Please click the Start a New Post button on the General Mechanical Channel.

You need to put a lot more description into your post than what you have above. Say what the analysis type is, the loads, the boundary conditions, the materials. I don't know much about RVE but someone who does might provide an answer.

[Johnson Ezenwankwo]

Thanks, Peter. I have created a new post about this issue. I await your feedback. 

[peteroznewman]

Hello Johnson Ezenwankwo,

Where is your New Post?  I don't see it under General Mechanical.

You can put a link to your post in your reply.

[Johnson Ezenwankwo]

https://community.ansys.com/?status/49639-49639-1684361619/

[peteroznewman]

You posted to the Feed which is not widely read. 

Go to the Learning Forum.  On the Learning Forum go to the General Mechanical section.  Then press the Start a New Post button.  Make the title of the post RVE Help or something like that.

Please label your figure to identify all the face names. Use arrows to point to the features in the image that you find are wrong.

 

[Johnson Ezenwankwo]

Hello Peter, I have just created a new post under Mechanical with added annotation to the graphics attached. 

[Ali aviation.khademi]

Hello Peter, I have deformed a plate in static structural, now, i want to keep it deformed and do the creep analysis. Where should i transfer the solution? I mean should i transfer it to the structural transient?(the option of "transfer solution  to" just offer explicit dynamics and other analysis but not the transient is an option). I have tried to do it manually by dragging from solution to setup, but after opening the model, the geometry of my model is undeformed (unlike the explicit that when i transfer static solution to it , it is deformed).

[Erik Kostson]

This is a very old post and your question is not directly related to the original post - open up a new discussion.

Closing post

Erik