×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

Welding Analysis with Element Birth/Death technique

Welding Analysis with Element Birth/Death technique

Welding Analysis with Element Birth/Death technique

(OP)
Dear All Experts;

I have examined a welding analysis. I used Goldak's Double Ellipsoidal model in APDL for moving heat source in transient thermal analysis.

I imported the loads obtained in thermal analysis to structural analysis.

I divided the weld line with 10 parts, the length of part 100 mm, the speed of welding is 10 mm/sec. also the weld line was divided 10 parts every divided part's length is 10 mm. in the beginning all the parts are death and for every 1 sec I activated parts respectively.

My question is that when I compare the resulşt between structural analysis which was made with element birth/death texhnique and structural analysis without using element birth and death techique for the same imported loads there is a big difference.

I obtained 200 Mpa values with the structural analysis which is executed without using birth/dead technique and I obtained too much values like 1900 Mpa values with the structural analysis which is executed with using birth/death technique?,

Why do I obtain these different values with these structural analysis which the same boundary condition are used.

I did not use element birth and death technique for transient thermal analysis.

I thank you in advice.



Best regards...

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


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
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

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