Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

steptime value ?

steptime value ?

steptime value ?

Hello everyone,
I would like to know if there is a rule for defining the value of steptime ?

Thank you for your help !

RE: steptime value ?

Yes, it should correspond to the actual time period of the simulated event/process if it’s dynamic analysis. In case of statics, step time is generally not a physical time but rather a measure used for load incrementation. Step time in static analyses may correspond to real time if you include rate-dependent material behavior or temperatures from previous transient heat transfer simulation.

RE: steptime value ?

Thank you for your reply.
Yes, I am talking about an explicit case.
What do you mean about the actual time period ?

RE: steptime value ?

For example if you simulate an impact that lasts for 0.1 s then your step time should be also set to 0.1 s. Or if you want to analyze the temperature in a boiler after 10 minutes of heating then your step time should be set to 10 minutes (600 s).

RE: steptime value ?

Now, I get what you mean
By the way, I am working on deep drawing process

Thank you for your answer

RE: steptime value ?

If you simulate the process in Explicit as quasi-static, then you can set the time scale as you like. Usually you'll compensate that with mass scaling.

RE: steptime value ?

In case of quasi-static processes (like this one) one of the methods to reduce the computational cost (and get results faster) is to speed up the process artificially (decrease it’s time period when specifying step time). You can also use mass scaling for this purpose. Just keep in mind that both methods have to be used carefully since they can influence the results by increasing inertia forces.

You can find more details about that in the documentation chapter "Explicit dynamic analysis".

RE: steptime value ?

Yes, absolutely

These answers help me a lot !

Many thanks

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
The Great Project Profitability Debate
A/E firms have a great opportunity to lead the world into the future, but the industry’s greatest asset—real-time data—is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close