NDLI: Structural efficiency of composite struts for aerospace applications

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Structural efficiency of composite struts for aerospace applications

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jegley, Dawn C. Wu, K. Chauncey Oremont, Leonard McKenney, Martin J.
Copyright Year	2011
Description	The structural efficiency of carbon-epoxy tapered struts is considered through trade studies, detailed analysis, manufacturing and experimentation. Since some of the lunar lander struts are more highly loaded than struts used in applications such as satellites and telescopes, the primary focus of the effort is on these highly loaded struts. Lunar lander requirements include that the strut has to be tapered on both ends, complicating the design and limiting the manufacturing process. Optimal stacking sequences, geometries, and materials are determined and the sensitivity of the strut weight to each parameter is evaluated. The trade study results indicate that the most efficient carbon-epoxy struts are 30 percent lighter than the most efficient aluminum-lithium struts. Structurally efficient, highly loaded struts were fabricated and loaded in tension and compression to determine if they met the design requirements and to verify the accuracy of the analyses. Experimental evaluation of some of these struts demonstrated that they could meet the greatest Altair loading requirements in both tension and compression. These results could be applied to other vehicles requiring struts with high loading and light weight.
File Size	61720099
Page Count	17
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110008733
Archival Resource Key	ark:/13960/t3fz28g71
Language	English
Publisher Date	2011-04-04
Access Restriction	Open
Subject Keyword	Structural Mechanics Fabrication Epoxy Matrix Composites Struts Manufacturing Sequencing Aerospace Engineering Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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