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.
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.
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.
"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.
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.