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Design of Fiber Reinforced Foam Sandwich Panels for Large Ares V Structural ApplicationsThe preliminary design of three major structural components within NASA's Ares V heavy lift vehicle using a novel fiber reinforced foam composite sandwich panel concept is presented. The Ares V payload shroud, interstage, and core intertank are designed for minimum mass using this panel concept, which consists of integral composite webs separated by structural foam between two composite facesheets. The HyperSizer structural sizing software, in conjunction with NASTRAN finite element analyses, is used. However, since HyperSizer does not currently include a panel concept for fiber reinforced foam, the sizing was performed using two separate approaches. In the first, the panel core is treated as an effective (homogenized) material, whose properties are provided by the vendor. In the second approach, the panel is treated as a blade stiffened sandwich panel, with the mass of the foam added after completion of the panel sizing. Details of the sizing for each of the three Ares V components are given, and it is demonstrated that the two panel sizing approaches are in reasonable agreement for thinner panel designs, but as the panel thickness increases, the blade stiffened sandwich panel approach yields heavier panel designs. This is due to the effects of local buckling, which are not considered in the effective core property approach.
Document ID
20100040417
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Bednarcyk, Brett A.
(NASA Glenn Research Center Cleveland, OH, United States)
Arnold, Steven M.
(NASA Glenn Research Center Cleveland, OH, United States)
Hopkins, Dale A.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
October 1, 2010
Subject Category
Composite Materials
Report/Patent Number
AIAA Paper 2010-2781
E-17452
NASA/TM-2010-216823
Meeting Information
Meeting: 51st Structures, Structural Dynamics, and Materials Conference
Location: Orlando, FL
Country: United States
Start Date: April 12, 2010
End Date: April 15, 2010
Sponsors: American Helicopter Society, Inc., American Inst. of Aeronautics and Astronautics, American Society of Mechanical Engineers, American Society for Composites, American Society of Civil Engineers
Funding Number(s)
WBS: WBS 727950.04.03.22
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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