The present article is concerned with the application of the finite element method to the analysis of the onset of delamination growth in composites by means of the virtual crack closure technique (VCCT). The article reviews first the application of linear elastic fracture mechanics (LEFM) to the analysis of delamination, as well as the reasons why the VCC technique is the standard method of combining LEFM and the finite element method to predict onset of delamination growth. The article also reviews the different solutions proposed in the literature to deal with the oscillatory singularity associated with a crack between two dissimilar materials (as is the case for a delamination) and the practical details of the VCCT application in a general 3D analysis. Finally, the results of a numerical study of the mixed mode bending (MMB) interlaminar fracture test are shown. The study applies the concepts reviewed along the rest of this article and presents some practical recommendations for the analysis of a delamination front using finite elements. This review article includes 77 references.

1.
Miller
AG
,
Lowell
DT
, and
Seferis
JC
(
1994
),
The evolution of an aerospace material: Influence of design, manufacturing and in-service performance
,
Compos. Struct.
,
27
,
193
206
.
2.
Chamis CC and Ginty CA (1989), Fibre composite structural durability and damage tolerance: Simplified predictive methods, Composite Materials: Fatigue and Fracture 2, ASTM STP 1012, 338–355.
3.
Wolf K (1993), Strength prediction of impact damaged composites-an engineering model, Proc of ICCM-9, 6, Madrid, 343–350.
4.
Ferrigno A, La Barbera A, and Perugini P (1995), An engineering assessment of the static residual strength of composite laminates with impact-induced damages: integrated procedure based on 3D FEM and 2D theoretical analyses and experimental investigations, Proc of ICCM-10, 5, Whistler, BC, Canada, 679–686.
5.
Ishikawa T, Sugimoto S, Matsushuima M, and Hayashi Y (1995), Mechanical behaviour in compression after impact (CAI) test of CF/PEEK (APC-2) and conventional CF/epoxy flat laminates, Proc of ICCM-10, 5, Whistler, BC, Canada, 687–694.
6.
Kimpara I, Kageyama K, Ohsawa I, Suzuki T, and Yamashita A (1995), A proposal of prediction method of compressive residual strength of impact-damaged CFRP laminates, Proc of ICCM-10, 5, Whistler, BC, Canada, 655–662.
7.
Schellekens
JC
and
De Borst
R
(
1993
),
Free edge delamination in carbon epoxy laminates: a novel numerical/experimental approach
,
Compos. Struct.
,
28
,
467
474
.
8.
Cui
W
and
Wisnom
MR
(
1993
),
A combined stress-based and fracture-mechanics-based model for predicting delamination in composites
,
Composites
,
6
,
467
474
.
9.
Crisfield MA, Mi Y, Davies GAO, and Hellweg HB (1997), Finite element method and the progressive failure modelling of composite structures, CIMNE Proceedings, Computational plasticity: Fundamental and applications, Barcelona, 239–254.
10.
Chen
J
,
Crisfield
M
,
Kinloch
AJ
,
Busso
EP
,
Matthews
FL
, and
Qiu
Y
(
1999
),
Predicting progressive delamination of composite material specimens via interface elements
,
Mech. Compos. Mater.
,
6
,
301
317
.
11.
Ireman
T
,
Thesken
JC
,
Greenhalgh
E
,
Sharp
R
,
Ga¨dke
M
,
Maison
S
,
Ousset
Y
,
Roudolff
F
, and
La Barbera
A
(
1996
),
Damage propagation in composite structural elements-Coupon experiments and analyses
,
Compos. Struct.
,
36
,
209
220
.
12.
Olsson
R
,
Thesken
JC
,
Brandt
F
,
Jo¨nsson
N
, and
Nilsson
S
(
1996
),
Investigations of delamination criticality and the transferability of growth criteria
,
Compos. Struct.
,
36
,
221
247
.
13.
Ko¨nig M, Albinger J, and Ha¨nsel C (1993), Delamination buckling: numerical simulation of experiments, Proc of ICCM-9, 6, Madrid, 535–542.
14.
Ko¨nig M, Kru¨ger R, and Rinderknecht S (1995), Numerical simulation of delamination bucking and growth, Proc of ICCM-10, 1, Whistler, BC, Canada, 269–276.
15.
Krueger R, Ko¨nig M, and Ga¨dke M (1995), Predicting delamination growth under cyclic loading: an approach using computational structural analysis and testing, Proc of ICCM-10, 1, Whistler, BC, Canada, 561–568.
16.
Kutlu
Z
and
Chang
FK
(
1995
),
Composite panels containing multiple through-the-width delaminations and subjected to compression. Part I: analysis
,
Compos. Struct.
,
31
,
273
296
.
17.
Kutlu
Z
and
Chang
FK
(
1995
),
Composite panels containing multiple through-the-width delaminations and subjected to compression. Part II: Experiments and verification
,
Compos. Struct.
,
31
,
297
314
.
18.
Pradhan
SC
and
Tay
TE
(
1998
),
Three-dimensional finite element modelling of delamination growth in notched composite laminate under compression loading
,
Eng. Fract. Mech.
,
60
(
2
),
157
171
.
19.
Martin RH (1998), Incorporating interlaminar fracture mechanics into design, Int Conf on Designing Cost-Effective Composites, London, 83–92.
20.
Awerbuch
J
and
Madhukar
M
(
1985
),
Notched strength of composite laminates: predictions and experiments: A review
,
J. Reinf. Plast. Compos.
,
4
,
3
159
.
21.
Friedrich K (1989), Fractographic analysis of polymer composites, Application of Fracture Mechanics to Composite Materials, Elsevier.
22.
O’Brien TK (1982), Characterisation of delamination onset and growth in a composite laminate, Damage in Composite Materials, ASTM STP 775.
23.
Griffith AA (1924), The Theory of Rupture, Proc 1st Int Congress of Applied Mechanics, J Waltman Sr (ed) Delft, 55–63.
24.
Irwin GR (1958), Fracture, Handbuck der Physik 6, Springer, Berlin, 551–590.
25.
Kinloch
AJ
,
Wang
Y
,
Williams
JG
, and
Yaila
P
(
1993
),
The mixed-mode delamination of fibre composite materials
,
Compos. Sci. Technol.
,
47
,
225
237
.
26.
Hashemi S, Kinloch AJ, and Williams JG (1991), Mixed-mode fracture in fiber-polymer composite laminates, Composite Materials: Fatigue and Fracture, ASTM STP 1110, 143–168.
27.
Charalambrides
M
,
Williams
JG
,
Kinloch
AJ
, and
Wang
Y
(
1992
),
On the analysis of mixed mode fracture
,
Int. J. Fract.
,
54
,
269
291
.
28.
Davidson BD, Fariello PL, Hudson RC, and Sundaraman V (1997), Accuracy assessment of the singular-field-based mode-mix decomposition procedure for the prediction of delamination, Composite Materials: Testing and Design, 13, ASTM STP 1242, 109–128.
29.
Russell AJ and Street KN (1985), Moisture and temperature effects on the mixed mode delamination of unidirectional graphite/epoxy, Delamination and Debonding of Materials, ASTM-STP-876.
30.
Ramkumar RL and Whitcomb JD (1985), Characterization of mode I and mixed mode delamination growth in T300/5208 graphite/epoxy, Delamination and Debonding of Materials, ASTM-STP-876.
31.
Reeder JR and Crews JH (1991), Redesign of the mixed-mode bending test for delamination toughness. ICCM-8, Hawaii, Paper 36-B3.
32.
Sriram P, Khourchid Y, Hooper SJ, and Martin RH (1995), Experimental delamination of a mixed-mode fatigue delamination criterion, Composite Materials: Fatigue and Fracture 5, ASTM STP 1230.
33.
Hashemi
S
,
Kinloch
AJ
, and
Williams
JG
(
1990
),
Mechanics and mechanism of delamination in a polyether sulphone fibre composite
,
Compos. Sci. Technol.
,
37
,
429
462
.
34.
Bradley WL (1989), Relationship of matrix toughness to interlaminar fracture toughness, Application of Fracture Mechanics to Composite Materials, Elsevier Publ 159–188.
35.
Gong X and Benzeggagh M (1995), Mixed mode interlaminar fracture toughness of unidirectional glass/epoxy composite, Composite Materials: Fatigue and Fracture, 5, ASTM STP 1230, Philadelphia, 100–123.
36.
Whitney JM (1989), Experimental characterisation of delamination fracture, Interlaminar Response of Composite Materials, Elsevier Publ 161–250.
37.
Svenson
N
and
Gilchrist
MD
(
1998
),
Mixed mode delamination of multidirectional carbon fiber/epoxy laminates
,
Mech. Compos. Mater.
,
5
,
291
307
.
38.
Purslow D (1986), Matrix fractography of fibre-expoxy composites, Royal Aircraft Establishment, Tech Report 86046.
39.
Cvitkovich MK, Krueger R, O’Brien TK, and Minguet P (1998), De-bonding in composite skin/stringer configurations under multi-axial loading, Proc of 13th Annual Tech Conf on Composite Materials, Baltimore, 1014–1048.
40.
Broek D (1986), Elementary Engineering Fracture Mechanics, Kluwer Academic Publ, Dordrecht, The Netherlands.
41.
Wang
Y
and
Williams
JG
(
1992
),
Corrections for mode II fracture toughness specimens of composite materials
,
Compos. Sci. Technol.
,
43
,
251
256
.
42.
Parks
DM
(
1974
),
A stiffness derivative finite element technique for determination of crack tip stress intensity factors
,
Int. J. Fract.
,
10
,
487
502
.
43.
Hellen
TK
(
1975
),
On the method of virtual crack extension
,
Int. J. Numer. Methods Eng.
,
9
,
187
207
.
44.
Delorenzi
HG
(
1985
),
On the energy release rate calculations by the finite element method
,
Eng. Fract. Mech.
,
21
,
129
143
.
45.
Krueger R, Koenig M, and Schneider T (1993), Computation of local energy release rates along straight and curved delamination fronts of unidirectionally laminated DCB and ENF specimens, 34th SDM Conf, La Jolla, AIAA 93-1457.
46.
Ishikawa
H
(
1980
),
A finite element analysis of stress intensity factors for combined tensile and shear loading by only a virtual crack extension method
,
Int. J. Fract.
,
38
,
217
235
.
47.
Sha
GT
(
1984
),
On the virtual crack extension technique for stress intensity factors and energy release rate calculations for mixed fracture mode
,
Int. J. Fract.
,
25
,
33
42
.
48.
Rybicki
EF
and
Kanninen
MF
(
1987
),
A finite element calculation of stress-intensity factors by a modified crack closure integral
,
Eng. Fract. Mech.
,
9
,
931
938
.
49.
Williams
ML
(
1959
),
The stresses around a fault or crack in dissimilar media
,
Bull. Seismol. Soc. Am.
,
49
,
199
204
.
50.
Quian
W
and
Sun
CT
(
1997
),
Calculation of stress intensity factors for interlaminar cracks in composite laminates
,
Compos. Sci. Technol.
,
57
,
637
650
.
51.
Conminou
M
(
1978
),
The interface crack in a shear field
,
ASME J. Appl. Mech.
,
45
,
287
290
.
52.
Conminou
M
(
1979
),
The interface crack in a combined tension-compression and shear field
,
ASME J. Appl. Mech.
,
46
,
345
348
.
53.
Rice
JR
(
1988
),
Elastic fracture mechanics concepts for interfacial cracks
,
ASME J. Appl. Mech.
,
55
,
98
103
.
54.
Raju
IS
,
Crews
Jr
JH
, and
Aminpour
MA
(
1988
),
Convergence of strain energy release rate components for edge-delaminated composite laminates
,
Eng. Fract. Mech.
,
30
(
3
),
383
396
.
55.
Liu S, Kutlu Z, and Chang FK (1993), Matrix cracking-induced delamination propagation in graphite/epoxy laminated composites due to a transverse concentrated load, Composite Materials: Fatigue and Fracture, 4, ASTM STP 1156, 86–101.
56.
Davidson BD (1995), Prediction of energy release rate for edge delamination using a crack tip element approach, Composite Materials: Fatigue and Fracture, 5, ASTM STP 1230, 155–175.
57.
Raju
IS
,
Sistla
R
, and
Frishnamurthy
T
(
1996
),
Fracture mechanics analyses for skin-stiffener debonding
,
Eng. Fract. Mech.
,
54
(
3
),
371
385
.
58.
Glaessgen EH, Riddell WT, and Raju IS (1998), Effect of shear deformation and continuity on delamination modelling with plate elements, AIAA Paper No. AIAA-98-2023.
59.
Krueger R (1999), A shell/3D modelling technique for delamination in composite laminates, Proc of 14th Tech Conf of the American Society for Composites, 843–852.
60.
Raju
IS
(
1987
),
Calculation of strain-energy release rates with higher order and singular finite elements
,
Eng. Fract. Mech.
,
28
(
3
),
251
274
.
61.
De Roeck
G
and
Abdel-Wahab
MM
(
1995
),
Strain energy release rate formulae for 3D finite element
,
Eng. Fract. Mech.
,
50
(
4
),
569
580
.
62.
Atluri
SN
,
Kobayashi
AS
, and
Nakagaki
M
, (
1975
),
An assumed displacement hybrid finite element model for linear fracture mechanics
,
Int. J. Fract.
,
11
,
257
261
.
63.
Atluri SN and Nakagaki M (1986), Computational methods for plane problems of fracture, Computational Methods in the Mechanics of Fracture, Elsevier Sci Publ, 169–222.
64.
Atluri SN and Nishioka T (1986), Computational methods for three-dimensional problems of fracture, Computational Methods in the Mechanics of Fracture, Elsevier Sci Pub, 229–283.
65.
Barsoum
RS
(
1977
),
A triangular quarter point elements as elastic and perfectly-plastic crack tip elements
,
Int. J. Numer. Methods Eng.
,
11
,
85
98
.
66.
Abaqus/Standard Manuals, Release 5.8, Hibbitt, Karlsson, and Sorenssen, Inc.
67.
Raju IS (1986), Simple formulae for strain strain-energy release rates with higher order and singular finite elements. National Aeronautics and Space Administration, NASA CR 178186.
68.
Jime´nez MA, Revuelta D, Cuartero J, Clemente R, and Calvo J (1999), Simulacion mediante el me´todo de los elementos finitos del ensayo de fractura interlaminar en modo mixto MMB, Proc of Materiales Compuestos 99 AEMAC Conf, Malaga.
69.
Wilkins DJ, Eisenmann JR, Camin RA, Margolis WS, and Benson RA (1982), Characterising delamination growth in graphite-epoxy, Damage in Composite Materials, ASTM STP 775, 168–183.
70.
Sundaraman V and Davidson BD (1995), New test methods for determining fracture toughness as a function of mode mix for bimaterial interfaces, Application of Fracture Mechanics in Electronic Packaging and Materials, 11, 141–154.
71.
Davidson BD (1998), A predictive methodology for delamination growth in laminated composites, Part I: theoretical development and preliminary experimental results, Report AR-97/87 Department of Transportation, FAA.
72.
Reeder
JR
and
Crews
JH
(
1990
),
The mixed mode bending method for delamination testing
,
AIAA J.
,
28
(
7
),
1270
1276
.
73.
Shivakumar
KN
,
Crews
JH
, and
Avva
VS
(
1998
),
Modified mixed-mode bending test apparatus for measuring delamination fracture toughness of laminated composites
,
J. Compos. Mater.
,
32
(
9
),
814
828
.
74.
Bhashyam S and Davidson B (1996), An evaluation of data reduction methods for the mixed mode bending test, 37 AIAA Structures, Structural Dynamics, and Materials Conf, 886–896.
75.
Asp
LE
(
1998
),
The effects of moisture and temperature on the interlaminar delamination toughness of a carbon/epoxy composite
,
Compos. Sci. Technol.
,
58
,
967
977
.
76.
Juntti
M
,
Asp
LE
, and
Olsson
R
(
1999
),
Assessment of evaluation methods for the mixed-mode bending test
,
J. Compos. Technol. Res.
,
21
(
1
),
37
48
.
77.
Krueger R, Minguet PJ, and O’Brien TK (1999), A method for calculating strain energy release rates in preliminary design of composite skin/stringer debonding under multiaxial loading, NASA TM-1999-209365, ARL-TR-2012.
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