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ASTM Selected Technical Papers
Composite Materials: Fatigue and Fracture, Fourth Volume
By
W Stinchcomb
W Stinchcomb
1
Virginia Polytechnic Institute and State University and the U.S. Air Force Academy
;
symposium chairman and editor
Search for other works by this author on:
N Ashbaugh
N Ashbaugh
2
University of Dayton, Research Institute
,
Dayton, OH
;
symposium chairman and editor
Search for other works by this author on:
ISBN-10:
0-8031-1498-2
ISBN:
978-0-8031-1498-2
No. of Pages:
6608
Publisher:
ASTM International
Publication date:
1993

An investigation was performed to study the delamination propagation induced by matrix cracking in graphite/epoxy laminated composite beams subjected to transverse concentrated loading. The major focus of the study was to fundamentally understand the interaction between matrix cracking and delamination propagation in laminated composites resulting from transverse loadings. A nonlinear finite element analysis combined with a failure criterion and fracture mechanics was developed for modeling the damage initiation and propagation in composite beams subjected to a concentrated line load. A contact analysis based on the Lagrange multiplier technique was also adopted for modeling the contactslip condition of delamination and matrix crack surfaces during loading. Results of the calculations based on the analysis were compared favorably with the existing data and the data generated during the investigation.

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G. M.
and
Elber
,
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, “
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,”
Proceedings
, U. S. Army Symposium on Solid Mechanics
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,
09
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.
2.
Elber
,
W.
, “
Failure Mechanics in Low-Velocity Impacts on Thin Composite Plates
,” NASA technical paper TP 2152,
NASA-Langley Research Center
,
Hampton, VA
,
1983
.
3.
Sjöblom
,
P. O.
and
Hartness
,
J. T.
, “
On Low-Velocity Impact of Composite Materials
,”
Journal of Composite Materials
, Vol.
22
,
01
1988
, pp. 30–52.
4.
Joshi
,
S. P.
and
Sun
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, “
Impact-Induced Fracture in a Laminated Composite
,”
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, Vol.
19
,
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5.
Poe
,
C. C.
 Jr.
, “
Simulated Impact Damage in a Thick Graphite/Epoxy Laminate Using Spherical Indenters
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.
6.
Starbuck
,
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, “
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Virginia Polytechnic Institute and State University
, Blacksburg, VA,
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.
7.
Finn
,
S.
, “
Delaminations in Composite Plates Under Transverse Static or Impact Loading
,” Ph.D. dissertation,
Department of Aeronautics and Astronautics, Stanford University
, Stanford, CA,
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.
8.
Chang
,
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,
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,
H. Y.
, and
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,
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, “
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,”
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, Vol.
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,
08
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Chang
,
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,
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, and
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, “
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,”
Journal of Composite Materials
, Vol.
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,
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, pp. 1011–1038.
10.
Choi
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,
Wang
,
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, and
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, “
Effect of Laminate Configuration and Impactor's Mass on the Initial Impact Damage of Composite Plates Due to Line-Loading Impact
,”
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, Vol.
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, No.
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,
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Chang
,
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,
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,
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, and
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,
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, “
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,”
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,
05
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12.
Choi
,
H. Y.
, “
Damage in Graphite/Epoxy Laminated Composites Due to Low-Velocity Impact
,” Ph.D. dissertation,
Department of Mechanical Engineering, Stanford University
, Stanford, CA,
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.
13.
Wu
,
H. T.
and
Springer
,
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, “
Impact Induced Stresses, Strains, and Delaminations in Composites Plates
,”
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, Vol.
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,
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14.
Liu
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, “
Impact Induced Delamination—A View of Bending Stiffness Mismatching
,”
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, Vol.
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,
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, pp. 674–692.
15.
Sun
,
C. T.
and
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,
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, “
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,”
Composite Science and Technology
 0266-3538, Vol.
34
,
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, pp. 365–377.
16.
Kutlu
,
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and
Chang
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, “
Modeling Compression Failure of Laminated Composites Containing Multiple Through-the-Width Delaminations
,”
Journal of Composite Materials
, Vol.
26
,
1992
, pp. 350–387.
17.
Chang
,
F. K.
and
Kutlu
,
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, “
Collapse Analysis of Composite Panels Containing Multiple Delaminations
,”
Proceedings
, AIAA/ASME/ASCE/AHS 30th Structures, Structural Dynamics and Materials (SMD) Conference,
Mobile, AL
,
04
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.
18.
Kutlu
,
Z.
, “
Compression Failure of Laminated Composite Panels Containing Multiple Delaminations
,” Ph.D. dissertation,
Department of Mechanical Engineering, Stanford University
, Stanford, CA,
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.
19.
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,
K. J.
,
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,
Prentice-Hall, Inc.
,
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,
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.
20.
Chang
,
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and
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,
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, “
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,”
Journal of Composite Materials
, Vol.
25
, No.
1
,
01
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, pp. 2–43.
21.
Chang
,
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and
Springer
,
G. S.
, “
The Strengths of Fiber Reinforced Composite Bends
,”
Journal of Composite Materials
, Vol.
20
, No.
1
,
01
1986
, pp. 30–45.
22.
Liu
,
S.
,
Kutlu
,
Z.
, and
Chang
,
F. K.
, “
Delamination Propagation Induced by Matrix Cracking in Laminated Composites Subjected to Transverse Loading
,” AFOSR Technical Report of 1991 for Contract No. 89-0554.
23.
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,
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, “
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,”
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,
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, pp. 232–236.
24.
Cominou
,
M.
and
Chang
,
F. K.
, “
The Interface Crack in a Shear and Bending Field
,”
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,
Wang
S. S.
and
Renton
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, Eds.,
1981
, pp. 287–291.
25.
Anderson
,
G. P.
,
Devries
,
K. L.
, and
Williams
,
M. L.
, “
Finite Element in Adhesion Analysis
,”
International Journal of Fracture
, Vol.
9
,
1973
, pp. 421–435.
26.
Wang
,
A. S. D.
and
Crossman
,
F. W.
, “
Initiation and Growth of Transverse Cracks and Edge Delamination in Composites, Part I—An Energy Method
,”
Journal of Composite Materials
, Vol.
14
,
1980
, pp. 71–87.
27.
Kybicki
,
E. F.
and
Pagano
,
N. J.
, “
A Study of the Influence of Micro-Structure on the Modified Effective Modulus Approach for Composite Laminates
,”
Proceedings
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AIMMPE
,
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.
28.
Sun
,
C. T.
and
Jih
,
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, “
On the Strain Energy Release Rates for Interfacial Cracks in Bimaterial Media
,”
Engineering Fracture Mechanics
 0013-7944, Vol.
28
,
1987
, pp. 13–27.
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