Mohamad Edrisy
I am a university student, and for my thesis, I need to present
a guideline employing Elfini solver for Composite material.
I managed to validate some simple engineering problems with CLT,
Ansys, Abaqus up to now; however, for intermediate and advanced
problems, I wish some files or documents were helping me add in my
thesis as reference or assist me in concluding my thesis.
Iouri Apanovitch
I'm not sure if such a comprehensive document exists, to the best of my knowledge, it doesn't.
There's a section is the CATIA's online docs (Generative Structural Analysis > Importing Composite Properties) that sheds some light on it, but it's not a white paper kind of article.
In short, the FEA model for the composites uses shell/plate elements (no solids), with the stiffness properties for the shell elements computed automatically, based on the laminate layup. I believe, the standard method, well described in the literature, is used. This is what Import Composite Properties does.
But -- the layup must be created in the CATIA's Composite Part Design (CPD) workbench, you can't just specify the layup using some other means. So, in a sense, Import Comp Props provides the link between CPD and FEA workbench.
Which means, you must have access to the CPD workbench to do what you want to do.
Mohamad Edrisy
Dear Dr. Apanovitch, thank you for your response. I have
completed my thesis, it is approved, and it has now been delivered
to ProQuest for dissemination. It will soon become available in
ProQuest Dissertations & Theses.
Thesis title:
"Analysis Guidelines and Functionalities of the CATIA Native FEA
Solver for Composite Materials."
Here is the abstract:
The emergence of commercial FEA solvers was a significant
breakthrough that boosted the accuracy and complexity of
engineering design. While composite materials are special
materials, their mechanical properties can be custom-made by
considering the needs and requirements of the design problem. Given
the rapidly expanding global consumption of composite materials,
access to FEA solvers capable of assigning these materials is an
absolute requirement. The CATIA software is a platform for
designing, analyzing, and manufacturing of the parts. However,
there is no meaningful documentation in the public domain exploring
the finite element functionalities of CATIA software for composite
materials. Isotropic materials are used in numerous references
investigating the CATIA FEA solver; however, the extension to
composite materials has been lacking. The present study
investigates two phenomena: (1) the procedure to import composite
material properties into the Generative Structural Analysis
workbench, and (2) the pre-processing and the post-processing
toolbars and functionalities pertaining to this matter. The thesis
does not address the CAD modelling aspects of the composites per se
since there are many references available concentrating on such
issues in the CATIA public literature. The composite models are
selected from different scenarios labelled as benchmark problems.
The results generated by CATIA's native FEA solver for the static,
dynamic, and buckling cases are compared with other tools available
to the engineering community. These tools encompass the Classical
Lamination Theory and two commercial CAE codes, known as ABAQUS and
ANSYS.
Etienne Ardouin
Hi Mohamad and congrats on your thesis! sorry if a bit too late to share, but I did a basic comparison back in 2006, as Abaqus just became part of Dassault Systemes - doc reference attached.
For the future, I would strongly encourage you to look into SIMULIA 3DEXPERIENCE, where we have combined the advantage of CATIA V5 Analysis (full associativity) and Abaqus (shell integration schemes, pre and post-processing capabilities, such as useful tools for sizing, such as a ABD matrix calculator in the pre-processing). SIMULIA Abaqus is well established and recognized as a reference solver for Composites structural analysis.