국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Design of Structurally Efficient Tapered Struts (SETS)
저자	Deo, Ravi;; Benner, Harry;; Vincent, Dawson;; Olason, Eric;; Harrison, Richard
Keyword	AUGMENTATION;; BUCKLING;; CODING;; COMPRESSIVE STRENGTH;; DAMAGE;; DESIGN ANALYSIS;; EULER BUCKLING;; FAILURE MODES;; STIFFNESS;; STRUTS;; TOLERANCES (MECHANICS); WALLS
URL	http://hdl.handle.net/2060/20100021363
보고서번호	NASA/CR-2010-216699
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	A study was conducted to develop mass efficient composite struts. A closed-form design methodology for composite struts was developed using well established analyses to predict Euler buckling, local wall buckling;; compression strength, damage tolerance, and interlaminar shear at geometric gradients. The methodology was coded in a spreadsheet suitable for convenient and rapid sizing of tapered composite struts. This spreadsheet analysis was used to determine the influence of several variables such as material stiffness, strut diameter, and material allowables on strut weight for given loading conditions. The comparison showed that, while the Park Aerospace design method was well suited to preliminary sizing for a conservative design, the closed-form-analyses-based spreadsheet accounts for all possible failure modes and is a good optimum strut design tool. The report concludes with a set of recommendations for future work in analytical design and analysis methodology enhancements.