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ASTM Selected Technical Papers
Composite Reliability
By
EM Wu
EM Wu
1
Washington University
,
St. Louis, Mo. 63130
;
symposium chairman
.
Search for other works by this author on:
ISBN-10:
0-8031-0309-3
ISBN:
978-0-8031-0309-2
No. of Pages:
646
Publisher:
ASTM International
Publication date:
1975

To examine the time-temperature dependence of fiber-reinforced composite materials, forced vibration experiments have been conducted. After suitable statistical smoothing techniques have been applied to the raw data, the complex moduli (storage and loss moduli) of boron-epoxy and graphite-epoxy have been determined for a wide range of temperatures and frequencies. The materials are shown to exhibit an Arrhenius type of behavior.

1.
Halpin
,
J. C.
, “
Introduction to Viscoelasticity
,”
Composite Materials Workshop
,
Technomic
,
Stamford, Conn.
,
1968
, p. 87.
2.
Arthur
,
C. E.
,
Heller
,
A. S.
, and
Thakker
,
A. B.
, “
A Response Surface for the Complex Modulus of Composite Materials
,” AFML-TR-74-185,
Air Force Materials Laboratory
, Dayton, Ohio,
10
1974
.
3.
Heller
,
R. A.
,
Swift
,
G. W.
,
Stinchcomb
,
W. W.
,
Thakker
,
A. B.
, and
Liu
,
J. C.
, “
Time and Temperature Dependence of Boron/Epoxy and Graphite Epoxy Laminates
,” AFML-TR-73-261,
Air Force Materials Laboratory
, Dayton, Ohio,
11
1973
.
4.
Snowden
,
J. C.
,
Vibration and Shock in Damped Mechanical Systems
,
Wiley
,
New York
,
1968
, p. 271.
5.
Barr
,
A. J.
, and
Goodnight
,
J. H.
, “
SAS, A User's Guide to the Statistical Analysis System
,”
North Carolina State University
,
Raleigh, N.C.
,
1972
.
6.
Heller
,
R. A.
,
Thakker
,
A. B.
, and
Brinson
,
H. F.
, “
Accelerated Characterization of Fiber/Epoxy Composites, Part I. Viscoelastic Methods
,” AFML-TR-74-256, Part I,
Air Force Materials Laboratory
, Dayton, Ohio,
02
1975
.
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