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ASTM Selected Technical Papers
Composite Materials: Testing, Design, and Acceptance Criteria
By
A Zureick
A Zureick
editor
Search for other works by this author on:
AT Nettles
AT Nettles
editor
Search for other works by this author on:
ISBN-10:
0-8031-2893-2
ISBN:
978-0-8031-2893-4
No. of Pages:
280
Publisher:
ASTM International
Publication date:
2002

In order to design braiding sequences for three-dimensional braided components, a method to predict the yarn structure is necessary, because the mechanical properties of the component are dependent on the yarn structure. Satisfactory methods for predicting yarn structure based on braiding sequence are presently unavailable, although recent efforts [1] based on a finite element approach have yielded some positive results. In this paper we present a relatively efficient method based on an optimization approach. In our approach, the basic idea is to exploit the fact that the yarn structure of the braid must be the one that minimizes the total yarn length in the braid. Thus, the yarn structure can be predicted by minimizing the yarn length, subject to the condition that the yarns cannot intersect each other.

1.
Wang
,
Y.
, and
Sun
,
X.
, “
Determining the Geometry of Textile Preforms Using Finite Element Analysis
,”
Proceedings of the American Society for Composites Fifteenth Annual Conference
,
College Station, TX
,
09
2000
.
2.
Mouritz
,
A.P.
,
Bannister
,
M.K.
,
Falzon
,
P.J.
,
Leong
,
K.H.
, “
Review of Applications for Advanced Three-dimensional Fiber Textile Composites
,”
Composites Part A
, Vol.
30
,
1999
, pp. 1445–1461.
3.
Wang
,
Y.Q.
, and
Wang
,
A.S.D.
, “
Microstructure/Property Relationships in Three-dimensionally Braided Fiber Composites
,”
Journal of Composites Science and Technology
, Vol.
53
,
1995
, pp. 213–222.
4.
Sun
,
H.Y.
, and
Qiao
,
X.
, “
Prediction of the Mechanical Behavior of Three-dimensionally Braided Composites
, ”
Journal of Composites Science and Technology
, Vol.
57
,
1997
, pp. 623–629.
5.
Chen
,
L.
,
Tao
,
X.M.
, and
Choy
,
C.L.
, “
Mechanical Analysis of 3-D Braided Composites by the Finite Multiphase Element Method
,”
Journal of Composites Science and Technology
, Vol.
59
,
1999
, pp. 2383–2391.
6.
Li
,
W.
,
Hammad
,
M.
, and
Sheikh
,
A.
, “
Structural Analysis of 3-D Braided Preforms for Composites
,”
Journal of Textile Institute
, Vol.
81
,
1990
, pp. 491–514.
7.
Wang
,
Y.Q.
, and
Wang
,
A.S.D.
, “
On the Topological Yarn Structure of 3-D Rectangular and Tubular Braided Preforms
,”
Journal of Composites Science and Technology
, Vol.
51
,
1994
, pp. 575–586.
8.
Wang
,
Y.Q.
, and
Wang
,
A.S.D.
, “
Geometric Mapping of Yarn Structure Due to Shape Change in 3-D Braided Composites
,”
Journal of Composites Science and Technology
, Vol.
54
,
1995
, pp. 395–370.
9.
Wang
,
Y.Q.
, and
Wang
,
A.S.D.
, “
Spatial Distribution of Yarns and Thermo-mechanical Properties in 3-D Braided Tubular Composites
,”
Journal of Applied Composite Materials
, Vol.
4
,
1997
, pp. 121–132.
10.
Chen
,
L.
,
Tao
,
X.M.
, and
Choy
,
C.L.
, “
On the Microstructure of Three-dimensional Braided Preforms
,”
Journal of Composites Science and Technology
, Vol.
59
,
1999
, pp. 391–404.
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