This paper presents an extension of the correspondence principle (as applied to homogeneous viscoelastic solids) to nonhomogeneous viscoelastic solids under the assumption that the relaxation (or creep) moduli be separable functions in space and time. A few models for graded viscoelastic materials are presented and discussed. The revisited correspondence principle extends to specific instances of thermoviscoelasticity and fracture of functionally graded materials.

1.
Reiter
,
T.
,
Dvorak
,
G. J.
, and
Tvergaard
,
V.
,
1997
, “
Micromechanical Models for Graded Composite Materials
,”
J. Mech. Phys. Solids
,
45
, pp.
1281
1302
.
2.
Cai
,
H.
, and
Bao
,
G.
,
1998
, “
Crack Bridging in Functionally Graded Coatings
,”
Int. J. Solids Struct.
,
35
, pp.
701
717
.
3.
Erdogan
,
F.
,
1995
, “
Fracture Mechanics of Functionally Graded Materials
,”
Composites Eng.
,
5
, pp.
753
770
.
4.
Jin
,
Z.-H.
, and
Batra
,
R. C.
,
1998
, “
R-Curve and Strength Behavior of a Functionally Graded Material
,”
Mater. Sci. Eng., A
,
242
, pp.
70
76
.
5.
Kawasaki
,
A.
, and
Watanabe
,
R.
,
1987
, “
Finite Element Analysis of Thermal Stress of the Metals/Ceramics Multi-Layer Composites with Controlled Compositional Gradients
,”
J. Jpn. Inst. Met.
,
51
, pp.
525
529
.
6.
Noda
,
N.
,
1999
, “
Thermal Stresses in Functionally Graded Materials
,”
J. Therm. Stresses
,
22
, pp.
477
512
.
7.
Paulino
,
G. H.
,
Fannjiang
,
A. C.
, and
Chan
,
Y. S.
,
1999
, “
Gradient Elasticity Theory for a Mode III Crack in a Functionally Graded Material
,”
Mater. Sci. Forum
,
308–311
, pp.
971
976
.
8.
Reddy
,
J. N.
, and
Chin
,
C. D.
,
1998
, “
Thermomechanical Analysis of Functionally Graded Cylinders and Plates
,”
J. Therm. Stresses
,
21
, pp.
593
626
.
9.
Aboudi
,
J.
,
Pindera
,
M. J.
, and
Arnold
,
S. M.
,
1999
, “
Higher-Order Theory for Functionally Graded Materials
,”
Composites, Part B
,
30B
, pp.
777
832
.
10.
Hirai, T., 1996, “Functionally Gradient Materials,” Processing of Ceramics, Part 2 (Materials Science and Technology, Vol. 17B), R. J. Brook, ed., VCH Verlagsgesellschaft mbH, Weinheim, Germany, pp. 292–341.
11.
Suresh, S., and Mortensen, A., 1998, Fundamentals of Functionally Graded Materials, The Institute of Materials, IOM Communications Ltd., London.
12.
Christensen, R. M., 1971, Theory of Viscoelasticity, Academic Press, New York.
13.
Rice
,
J. R.
,
1968
, “
A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and Cracks
,”
ASME J. Appl. Mech.
,
35
, pp.
379
386
.
14.
Honein
,
T.
, and
Herrmann
,
G.
,
1997
, “
Conservation Laws in Nonhomogeneous Plane Elastostatics
,”
J. Mech. Phys. Solids
,
45
, pp.
789
805
.
15.
Landes, J. D., and Begley, J. A., 1976, “A Fracture Mechanics Approach to Creep Crack Growth,” ASTM STP 590, American Society for Testing and Materials, Philadelphia, PA, pp. 128–148.
16.
Schapery
,
R. A.
,
1984
, “
Correspondence Principles and a Generalized J Integral for Large Deformation and Fracture Analysis of Viscoelastic Media
,”
Int. J. Fract.
,
25
, pp.
195
223
.
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