Community > Discussion Forum > Uniform Compression of a Block - Bulk Modulus

Discussion Forum

Uniform Compression of a Block - Bulk Modulus

Topics: Structural Mechanics, 4.3a

Thread index  |  Previous thread  |  Next thread  |  Start a new discussion

RSS FeedRSS feed   |   Email notificationsTurn on email notifications   |   1 Reply   Last post: March 7, 2013 3:44pm UTC
Chris Layman

Chris Layman

March 7, 2013 3:25pm UTC

Uniform Compression of a Block - Bulk Modulus

Hi

I am trying to validate a bulk modulus calculation on a simple cube of a linear solid. I apply a uniform force per area on all six sides of the cube (all in compression). But I cannot get the model to solve, it keeps failing because the relative error is greater than the relative tolerance. Any ideas?

I'm sure this is some simple thing I am overlooking.

Thanks
Chris

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Nagi Elabbasi

Nagi Elabbasi
Certified Consultant
Veryst Engineering

March 7, 2013 3:44pm UTC in response to Chris Layman

Re: Uniform Compression of a Block - Bulk Modulus

If you are doing a stationary analysis you need sufficient boundary conditions to make the model stable. For your case you can model one eighth of the cube and apply symmetry boundary conditions on the 3 cut faces.

Nagi Elabbasi
Veryst Engineering

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse


Rules and guidelines