Efficient Design and Analysis of Lightweight Reinforced Core Sandwich and PRSEUS Structures
- Toubia, Elias A.
- December 2012.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Collier, Craig S., Ainsworth, James J., Lucking, Ryan C., Bednarcyk, Brett A., and Yarrington, Phillip W.
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
- Design, analysis, and sizing methods for two novel structural panel concepts have been developed and incorporated into the HyperSizer Structural Sizing Software. Reinforced Core Sandwich (RCS) panels consist of a foam core with reinforcing composite webs connecting composite facesheets. Boeing s Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) panels use a pultruded unidirectional composite rod to provide axial stiffness along with integrated transverse frames and stitching. Both of these structural concepts are ovencured and have shown great promise applications in lightweight structures, but have suffered from the lack of efficient sizing capabilities similar to those that exist for honeycomb sandwich, foam sandwich, hat stiffened, and other, more traditional concepts. Now, with accurate design methods for RCS and PRSEUS panels available in HyperSizer, these concepts can be traded and used in designs as is done with the more traditional structural concepts. The methods developed to enable sizing of RCS and PRSEUS are outlined, as are results showing the validity and utility of the methods. Applications include several large NASA heavy lift launch vehicle structures.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20120000909.
Structures, Structural Dynamics, and Materials Conference; 4-7 Apr. 2011; Demver, CO; Oman.
- Copyright, Distribution as joint owner in the copyright.
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