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

Method of applying load on FEM

Method of applying load on FEM

Method of applying load on FEM

Hi all, I found this website very helpful and Im hoping to get a helping hand to answer the following question.

Is it correct to model a structrue (e.g:cabinet) by assigning mass density to all the material and then apply acceleration factor to the model? can this method be used at all model?

RE: Method of applying load on FEM

Depends on what you are trying to simulate, what results you want from the model, and what you are going to use the results for.  Please provide details.

RE: Method of applying load on FEM

I'm self-learning FEMAP. I'll be sizing the shell of the cabinet and the attachments (angles, fasteners).

RE: Method of applying load on FEM

Cabinet for what?  Where is it used?  how is it loaded?

RE: Method of applying load on FEM

How would you stress the cabinet by hand??
If you cant answer that then maybe you should't be using FE o do the work for you. If you want to learn FE correctly, then stress the item by hand, then stress it by FE, and work out why you get differences.
There are many pitfalls to be aware of for the inexperienced by simply using FE. Take for example a simple cantilever beam (quads elems)with an end vertical load, then hold the end in all six degrees and have a massive amount of elements, You watch the stress just take of at the corners and go to infinity if you could have enough elements. Wont tell you why this is, its part of the learning!

RE: Method of applying load on FEM


From your description you are trying to model the effect of selfweigth. Mass * acceleration (gravity) equals selfweight, so that should work.

However, having said that, are you trying to learn Femap or FEM? Because if you are trying to learn FEM I would recommend some basic theory before you start working with Femap. And definitly before you start working with real problems.

Good Luck


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


White Paper - PLM and ERP: Their Respective Roles in Modern Manufacturing
Leading manufacturers are aligning their people, processes, and tools from initial product ideation through to field service. They do so by providing access to product and enterprise data in the context of each person’s domain expertise. However, it can be complicated and costly to unite engineering with the factory and supply chain. Download Now
White Paper - Medical Device Design Control
Medical device product development is a highly integrated and regulated process. Implementation of a requirements tracking solution requires attention to a variety of nuanced topics. When presented with the task of tracking the many concept relationships in a project of this type, the initial software solution of choice tends to be a two-dimensional text systems. 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