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Title: Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838)

Abstract

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?

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10107937
Report Number(s):
UCRL-ID-115701
ON: DE94004225
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 27 Oct 1993
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; WINDING MACHINES; MATHEMATICAL MODELS; COMPOSITE MATERIALS; FABRICATION; NUMERICAL SOLUTION; MECHANICAL ENGINEERING; CURVILINEAR COORDINATES; 420200; 360101; FACILITIES, EQUIPMENT, AND TECHNIQUES; PREPARATION AND FABRICATION

Citation Formats

Geraghty, P. Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838). United States: N. p., 1993. Web. doi:10.2172/10107937.
Geraghty, P. Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838). United States. https://doi.org/10.2172/10107937
Geraghty, P. Wed . "Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838)". United States. https://doi.org/10.2172/10107937. https://www.osti.gov/servlets/purl/10107937.
@article{osti_10107937,
title = {Filament to mandrel gap analysis: Resulting gap from filament winding over a cone-cylinder transition mandrel (reference NMTP NO. 93838)},
author = {Geraghty, P},
abstractNote = {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?},
doi = {10.2172/10107937},
url = {https://www.osti.gov/biblio/10107937}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {10}
}