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ASTM Selected Technical Papers
Fracture Mechanics: 25th Volume
By
F Erdogan
F Erdogan
1
Lehigh University
Symposium Chairman
Search for other works by this author on:
ISBN-10:
0-8031-1882-1
ISBN:
978-0-8031-1882-9
No. of Pages:
724
Publisher:
ASTM International
Publication date:
1995

Fatigue cracks are often nucleated as small shear cracks. The propagation of such a crack often results in a crack plane that is inclined to the loading axis in such a manner to induce a mixed Mode I, Mode II, and Mode III crack-tip field. In this study, crack growth rates of Mode II and Mode III shear cracks as well as Mode I cracks in large-grain Al 7029 aluminum alloy were measured. The crack-tip resolved shear stress intensity factor, KRSS, was defined and calculated for each slip system in a crystal. The result of the study shows that KRSS is capable of characterizing the shear decohesion mechanism of crack growth, explaining the morphological features of a crack surface, and correlating with shear crack growth rate.

1.
Forsyth
,
P. J. E.
,
Proceedings of Crack Propagation Symposium
,
College of Aeronautics
,
Cranfield, England
,
1961
, Vol.
1
, p. 76.
2.
Laird
,
C.
, “
The Influence of Metallurgical Structure on the Mechanisms of Fatigue Crack Propagation
,” Fatigue Crack Propagation, ASTM STP 415,
American Society for Testing and Materials
,
1967
, p. 131.
3.
Suresh
,
S.
and
Ritchie
,
R. O.
, “
Propagation of Short Fatigue Cracks
,”
International Metals Review
, Vol.
29
, No.
6
, pp. 445–476,
1984
.
4.
Chen
,
O. Y.
, “
Crystallographic Fatigue Crack Propagation in Single Crystal Nickel-Base Superalloy
,” Ph.D Dissertation,
The University of Connecticut
,
1985
.
5.
Chan
,
K. S.
,
Hack
,
J. E.
, and
Leverant
,
G. R.
, “
Fatigue Crack Growth in Mar-M200 Single Crystals
,”
Metallurgical Transactions A.
Vol.
18A
, pp. 581–591,
04
1987
.
6.
Wojcik
,
C. C.
,
Chan
,
K. S.
, and
Koss
,
D. A.
, “
Stage I Fatigue Crack Propagation in a Titanium Alloy
,”
Acta Metallurgica
, Vol.
36
, No.
5
, pp. 1261–1270,
1988
.
7.
Telesraan
,
J.
and
Ghosn
,
L. J.
, “
The Unusual Near-Threshold FCG Behavior of a Single Crystal Superalloy and the Resolved Shear Stress as the Crack Driving Force
,”
Engineering Fracture Mechanics
. Vol.
34
, No.
5/6
, pp. 1183–1196,
1989
.
8.
Diboine
,
A.
,
Peltier
,
J. M.
, and
Pelloux
,
R. M.
, “
Fatigue Crack Propagation in s Single Crystal Nickel Base Superalloy
,” High Temperature Fracture Mechanisms and Mechanics. EGF6 (Edited by
Bensussan
P.
),
1990
,
Mechanical Engineering Publications
,
London
, pp. 421–446.
9.
Lerch
,
B. A.
and
Antolovich
,
Stephen D.
, “
Fatigue Crack Propagation Behavior of a Single Crystal Crystalline Superalloy
,”
Metallurgical Transactions A
, Vol.
21A
, pp. 2169–2177,
08
1990
.
10.
Gudladt
,
H. J.
and
Lendvai
,
J.
, “
Hydrogen Assisted Stage I Crack Propagation in Cyclically Deformed Al-Zn-Mg Single Crystals
,”
Scripta Metallurgica
, Vol.
24
, pp. 1813–1818,
1990
.
11.
Li
,
C.
, “
Vector CTD Analysis for Crystallographic Crack Growth
,”
Acta Metallurgica
, Vol.
38
, No.
11
, pp. 2129–2134,
1990
.
12.
Okazaki
,
M.
, “
Analysis of Crack Tip Sliding Displacement in Anisotropic Elastic Media and Its Application to Stage I Fatigue Crack Growth
,”
Metallurgical Transactions A
, Vol.
22A
,
02
1991
, pp. 479–487.
13.
Buzzard
,
R. J.
,
Gross
,
B.
, and
Srawley
,
J. E.
, “
Mode II Fatigue Crack Growth Specimen Development
,” Fracture Mechanics: Seventeenth Volume. ASTM STP 905,
American Society for Testing and Materials
,
1986
, pp. 329–346.
14.
McEvily
,
A. J.
and
Boettner
,
R. C.
, “
On Fatigue Crack Propagation in FCC Metals
,”
Acta Metallurgica
, Vol.
11
, pp. 725–743,
1963
.
15.
Pelloux
,
R. M. N.
, “
Mechanisms of Formation of Ductile Fatigue Striations
,”
Transactions of ASM
. Vol.
62
, pp. 281–285,
1969
.
16.
Neumann
,
P.
, “
New Experiments Concerning the Slip Processes at Propagating Fatigue Cracks
,”
Acta Metallurgica.
Vol.
22
, pp. 1155–1165,
1974
.
17.
Vehoff
,
H.
and
Neumann
,
P.
, “
In situ SEM Experiments Concerning the Mechanism of Ductile Crack Growth
,”
Acta Metallurgica
, Vol.
27
, pp. 915–920,
1979
.
18.
Gell
,
M.
and
Leverant
,
G. R.
, “
The Characteristics of Stage I Fatigue Fracture in a High-Strength Nickel Alloy
,”
Acta Metallurgica
, Vol.
16
, pp. 553–561,
04
1968
.
19.
Duquette
,
D. J.
,
Gell
,
M.
, and
Piteo
,
J. W.
, “
A Fractographic Study of Stage I Fatigue Cracking in a Nickel-Base Superalloy Single Crystal
,”
Metallurgical Transactions
, Vol.
1
,
11
1970
, pp. 3107–3115.
20.
Tong
,
Z. X.
,
Lin
,
S.
, and
Hsiao
,
C. M.
, “
The Mechanism of Fatigue crack Propagation in Pure Aluminum Single Crystals
,”
Scripta Metallurgica
, Vol.
20
, pp. 977–982,
1986
.
21.
Tong
,
Z. X.
,
Lin
,
S.
, and
Hsiao
,
C. M.
, “
The Crystallographic Characteristics of Fatigue Crack Propagation in Pure Aluminum Single Crystals
,”
Scripta Metallurgica
, Vol.
20
, p. 971,
1986
.
22.
Nageswararao
,
M.
and
Gerold
,
V.
, “
Fatigue Crack Propagation in Stage I in an Aluminum-Zinc-Magnesium Alloy: General Characteristics
,”
Metallurgical Transactions A
, Vol.
7A
, pp. 1847–1855,
12
1976
.
23.
Vogel
,
W.
,
Wilhelm
,
M.
, and
Gerold
,
V.
, “
Persistent Slip Bands in Fatigued Peak Aged Al-Zn-Mg Single crystals — I
,”
Acta Metallurgica
, Vol.
30
. pp. 21–30,
1982
.
24.
Hong
,
S. I.
and
Laird
,
C.
, “
Faceted Fatigue Fracture and Its Relation to the Crystallographic Slip Systems in Cu-16 At. Pct Al Single Crystals
,”
Metallurgical Transactions A
. Vol.
22A
, pp. 415–425,
02
1991
.
25.
Chen
,
Q.
, “
Shear Fatigue Crack Growth Analysis in Large Grain Polycrystals
,” Ph.D. Dissertation,
Syracuse University
,
1992
.
26.
Chan
,
K. S.
and
Cruse
,
T. A.
, “
Stress Intensity Factors for Anisotropic Compact-Tension Specimens with Inclined Cracks
,”
Engineering Fracture Mechanics
. Vol.
23
, No.
5
, pp. 863–874,
1986
.
27.
Liu
,
H. W.
, “
Fatigue Crack Growth by Crack Tip Cyclic Plastic Deformation: the Unzipping Model
,”
International Journal of Fracture
, Vol.
39
, pp. 63–77,
1989
.
28.
Hertzberg
,
R. W.
, “
Fatigue Fracture Surface Appearance
,” Fatigue Crack Propagation, ASTM STP 415,
American Society for Testing and Materials
,
1967
, pp. 205–225.
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