Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Difference Between Composite Section in (assign section) and Composite Layup in ABAQUS

Status
Not open for further replies.

isyhadh

Marine/Ocean
Joined
Nov 23, 2012
Messages
30
Location
GB
In terms of modelling composite in abaqus
did you notice there is section assign for composite and you can also model composite using composite layup?

can you explain to me what is the difference?
many thanks

regards
isyhadh
 
many thanks, Dan

can you show me more example on using composite section? because it is quite confusing, I familiar with composite layup but not composite section
if you could forward me more link to abaqus documentation or any tutorial, it will be really appreciated
but it is ok if you don't have time, no problem = )
cheers
 
Hi everyone!

In my case, I don´t usually use Abaqus/CAE for pre-processing my models. I use Hypermesh to generate the mesh, then I create the input file and I type the necessary commands I need. When I create the composite section by typing *SHELL SECTION, COMPOSITES I have to inuput the thickness, number of integration points, material and orientation, according to the example below.

*SHELL SECTION, ELSET = UMBILICAL, COMPOSITE, ORIENTATION = LOCAL
6.0, 3, HDPE, 0.0
4.5, 3, STEEL, -23.8
4.5, 3, STEEL, 21.8
5.2, 3, HDPE, 0.0

In this case, I created the mesh on the midsurface of the CAD model and I used S4 elements. Is this the best geometry to work with? If not, what would be the best surface (upper, lower or mid) to work with? Additionally, how does Abaqus deal with composite layers? Does it consider that all layers are towards the element normal vector, oppositely or half of the layers are upper and half lower?

Thank you in advance!
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top