×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Asking for suggestions on large distortion model

Asking for suggestions on large distortion model

Asking for suggestions on large distortion model

(OP)
My purpose is to model a process of dynamic vesicle spreading severely
on a substrate.

Initially, the vesicle is a hollow sphere (may be filled with liquid).
It's made of thin membrane subjected to adhesive force from its substrate.
(Please see the attachment, it's an illustration of cell spreading)
The physical problem I'm interested in is a coupled thermal-mechanical
problem.

So I'd like to conduct fully-coupled thermal-stress analysis in Abaqus.
In consideration of the thin membrane structure, I choose S4T element,
(There seems to be no membrane element that supports thermal-stress analysis?)
In consideration of the large deformation and severe distortion, I'd like
to invoke the ALE adaptive mesh scheme. However, I searched the Abaqus/doc
and it appeared that there are only solid elements that support ALE adaptive
mesh scheme. For this large distortion problem, Abaqus/Explicit seems to be
more efficient than Abaqus/Standard? However, I found that S4T element is not
supported in Abaqus/Explicit, so only continuum shell element (such as SC8RT)
could be a substitute. Whereas, SC8RT seems not to be supported in Adaptive mesh
either.

Probably for this problem, the best solution is to invoke user element, but this
is an effortful work. Besides user element, would you give me any suggestion on
how to model such a complicated process? Also, if you find any mistake in what I
stated above, please point it out, thank you!

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!


Resources