Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838)
The composites industry employs a method of high speed continuous reinforcement lay-down called filament winding. This is a process where resin impregnated tows, bundles of filament, are wound over a rotating mandrel. The tows, hereafter referred to as filament, are laid down over the rotating mandrel at a prescribed wind angle. Consider a cylindrical filament winding mandrel with conical features such that the filament is tangent to both the cylinder and the cone simultaneously. A gap is formed between the points of tangency. The gap distance measured along a line normal to the filament and intersecting the mandrel`s axis of rotation. The maximum distance occurs between the filament and a point on the intersection of the cylinder and the cone. The problems this paper addresses are: given a cylindrical filament winding mandrel with conical features, what is the gap size for a given wind angle; conversely what is the wind angle for a given gap size; and what does the geometry need to be in the mandrel transition area between the cylinder cone such that the filament remains in contact with the mandrel at all times?
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10107937
- Report Number(s):
- UCRL-ID-115701; ON: DE94004225
- Resource Relation:
- Other Information: PBD: 27 Oct 1993
- Country of Publication:
- United States
- Language:
- English
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