This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of FEM Results Based upon FOA
Technical Paper
2004-01-1729
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In FOA (First Order Analysis) any vehicle body structure might be interpreted as a collective simple structure that can be decomposed into 3 fundamental structure types. The first structure is the “BEAM”, whose cross sectional properties as well as its material dominates the mechanical behavior, the second is the “PANEL (shear panel, plate, and shell)”, whose mechanical behavior can be varied by changing its geometrical properties in the thickness direction, i.e. adding beads or flanges. The third structure is the “JOINT”, which connects the proceeding structures, and transfer complex three-dimensional loads with three-dimensional deformation. In the present work, we shall propose a methodology to identify a portion of an arbitrary FE model of an automotive body structure, with a “BEAM” structure in the FOA approach. In the latter chapter of this paper, cross section loads will be related with cross sectional properties in the aspect of the element strain energy concept. Comparing the ratio of contribution of each physical energy component can help us to decide which cross sectional properties are not efficient and need to be improved under a specific loading condition. In order to check the validity of this approach, some examples of validation that use a simple box beam and a practical vehicle body structure will be presented. Finally, sizing optimization which employs the Response Surface Methodology (RSM) will be introduced in order to stiffen a cross sectional property which shows poor capacity relatively.
Recommended Content
Citation
Kunishi, D. and Kikuchi, N., "Analysis of FEM Results Based upon FOA," SAE Technical Paper 2004-01-1729, 2004, https://doi.org/10.4271/2004-01-1729.Also In
References
- Kikuchi Noboru Kojima Yoshio Nishigaki Hidekazu Tsurumi Yasuaki Nakagawa Noriaki Mori Nobuyuki Nishiwaki Shinji Sugiura Hideki Mizutani Yoshiteru Amago Tatsuyuki R&D Review of Toyota CRDL Vol 37 No 1 1 36 March 2002
- Cook Robert D. Young Warren C. Advanced Mechanics of Materials Prentice Hall
- American Iron and Steel Institute AISI/CARS 2000 Automotive Design Manual 3.11.1 26
- Katori Hiroaki A Note on the Shear Center (Thin-walled Cross Section) The Japan Society of Mechanical Engineers Tokai Branch No.003-1 143 144
- Shen Han-Wei Johnson Christopher R. Sweep Simplices: A fast iso-surface extraction algorithm for unstructured grids IEEE Visualization '95 143 150 October 1995