Optimal design of axisymmetric filament wound structures based on semi-geodesic path algorithm = 준측지궤적 알고리즘을 적용한 필라멘트 와인딩 된 복합재 축대칭 구조물의 최적설계

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 250
  • Download : 0
In this paper, an optimal design procedure was suggested for axisymmetric filament wound structures under internal pressure. In the filament winding process, which is a popular technique for producing composite structures, a fiber bundle is placed on a rotating and removable mandrel. The process is consequently applied mainly to the manufacture of axisymmetric structures. The trajectory of the fiber path and the corresponding fiber angles cannot be chosen arbitrarily because of the stability requirement. The fiber path instability induced by the fiber slippage on a mandrel surface is too complicated to be predicted because it is affected by many parameters such as temperature, mandrel shape, fiber-resin combination, and surface treatment. So far, the results of the finite element analysis have been used only to understand the structural characteristics of filament wound structures because of the application of limited path equations to the analysis. Although finite element analysis is helpful for designing filament wound structures, most of the design and manufacturing of filament wound structures have been based on manufacturing experience and experiments. Thus, most designs have not been optimized to account for filament wound structures. Establishing an optimal design method for axisymmetric filament wound structures is therefore necessary. Such a method should do the following: improve finite element analysis, imply an adequate optimal design technique, consider manufacturing conditions and propose efficient designs. In the present study, the semi-geodesic path algorithm for filament wound structures was established. For this algorithm, the formulations of the winding angle and thickness were presented, and a numerical method of verifying the windability was explained. The path algorithm was verified through several representative applications of filament wound structures, And, finite element analysis of axisymmetric filament wound structures was performed ...
Advisors
Hong, Chang-Sunresearcher홍창선researcher
Description
한국과학기술원 : 항공우주공학전공,
Publisher
한국과학기술원
Issue Date
2004
Identifier
240616/325007  / 020005082
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 항공우주공학전공, 2004.8, [ x, 112 p. ]

Keywords

FILAMENT WINDING; OPTIMAL DESIGN; SEMI-GEODESIC PATH; 준측지궤적 삽입; 필라멘트와인딩; 최적설계

URI
http://hdl.handle.net/10203/26314
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=240616&flag=dissertation
Appears in Collection
AE-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0