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TECHNICAL PAPERS

Approximate Geometric Methods in Application to the Modeling of Fiber Placed Composite Structures

[+] Author and Article Information
Kurt Schueler

Department of Electrical Engineering and Computer Science, University of Kansas, 4413 Stone Meadows Ct., Lawrence, KS 66049

James Miller

Department of Electrical Engineering and Computer Science, University of Kansas, 2036 Eaton Hall, 1520 West 15th Street, Lawrence, KS 66045

Richard Hale

Department of Aerospace Engineering, University of Kansas, 2120 Learned Hall, 1530 W. 15th Street, Lawrence, KS 66045

J. Comput. Inf. Sci. Eng 4(3), 251-256 (Sep 07, 2004) (6 pages) doi:10.1115/1.1736685 History: Received March 01, 2004; Revised June 01, 2004; Online September 07, 2004
Copyright © 2004 by ASME
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References

Hale, R. D., 1999, “Excerpts From the Technical Proposal for Integrated Design and Analysis Tools for Reduced Weight, Affordable Fiber Steered Composites,” Proposal KU-FRL-22480-1, University of Kansas Flight Research Laboratory, Lawrence, KS.
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Unigraphics Solutions, Inc., 1999, “Parasolid Online Documentation Web, Parasolid V11.1.167,” Maryland Heights, MO.
Schueler, K., and Hale, R. D., 2002, “Object-Oriented Implementation of an Integrated Design and Analysis Tool for Fiber Placed Structures,” Proceedings-43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Denver, CO.
Hale, R. D., and Schueler, K., 2002, “Knowledge-Based Software Systems for Composite Design, Analysis and Manufacturing,” Proceedings-SAE General Aviation Technology Conference and Exposition, Wichita, KS.
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Figures

Grahic Jump Location
Fiber placement head delivers multiple tows in a course
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Steered course illustrates difference in feed rate across tows in the course
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The fiber axis is swept along V to create the initial reference curve
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Error associated with placing a point on a surface with circular arc cross section
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Offset curves on surface with inflections
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Offset curves on representative wing surface
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A laminate family curve at angle θ to offset curves
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Tows are dropped to control overlaps and gaps (shaded black) between neighboring courses
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P is found by orienting a plane at P and intersecting with the next curve
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Points are created along the reference curve, with normal and tangent vectors calculated at each point
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Cross section of placement surface showing calculation of offset point

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