Mechanical performance of carbon-fibre and glass-fibre-reinforced epoxy I-beams: II. Fractographic failure observations

Composites Science and Technology

Volumn 56, Issue 9, 1996, Pages 1031-1045

  Gilchrist, M D ^a   Kinloch, A J ^b   Matthews, F L ^b  

^a UNIVERSITY COLLEGE DUBLIN   (Ireland)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

Buckling; Carbon and glass fibre composites; Delamination; Flexure; Fractography; Fracture; I beam; Interlaminar stress

Indexed keywords

BENDING STRENGTH; BUCKLING; CARBON FIBER REINFORCED PLASTICS; CRACK INITIATION; DELAMINATION; FAILURE ANALYSIS; FATIGUE OF MATERIALS; FINITE ELEMENT METHOD; FRACTOGRAPHY; FRACTURE MECHANICS; GLASS FIBER REINFORCED PLASTICS; STRUCTURAL ANALYSIS;

I BEAMS; INTERLAMINAR STRESS;

COMPOSITE BEAMS AND GIRDERS;

COMPOSITES, CARBON-FIBRE-REINFORCED; COMPOSITES, GLASS-FIBRE-REINFORCED; MECHANICAL PROPERTIES;

EID: 0030237117     PISSN: 02663538     EISSN: None     Source Type: Journal    
DOI: 10.1016/0266-3538(96)00068-1     Document Type: Article

References (44)

1. Purslow, D., Some fundamental aspects of composites fractography. Royal Aircraft Establishment, Technical Report 81127, 1981.
2. Purslow, D., Fractographic analysis of failures in CFRP. Characterisation, Analysis and Significance of Defects in Composite Materials, AGARD, Conf. 355M, London, 1983, pp. 1.1-1.11.
3. Purslow, D. Composites fractography without an SEM - The failure analysis of a CFRP I-beam. Composites, 15 (1984) 43-48.
4. Purslow, D., Matrix fractography of fibre-epoxy composites. Royal Aircraft Establishment, Technical Report 86046, 1986.
5. 'tHart, W. G. L., Scanning electron microscopy of fracture surfaces of carbon composite materials. NLR TR 76035 U, National Aerospace Laboratory, The Netherlands, 1976.
6. Miller, A. G. & Wingert, A. L., Fracture surface characterization of commercial graphite/epoxy systems. Nondestructive Evaluation and Flaw Criticality for Composite Materials, ASTM STP 696, ed. R. B. Pipes. American Society for Testing and Materials, Philadelphia, PA, 1979, pp. 223-273.
7. Morris, G. E., Determining fracture directions and fracture origins on failed graphite/epoxy surfaces. Nondestructive Evaluation and Flaw Criticality for Composite Materials, ASTM STP 696, ed. R. B. Pipes. American Society for Testing and Materials, Philadelphia, PA, 1979, pp. 274-297.
8. Hibbs M. F. & Bradley, W. L., Correlations between micromechanical failure processes and the delamination toughness of graphite/epoxy systems. Fractography of Modern Engineering Materials: Composites and Metals, ASTM STP 948, ed. J. E. Masters & J. J. Au. American Society for Testing and Materials, Philadelphia, PA, 1987, pp. 68-97.
9. Bradley, W. L., Relationship of matrix toughness to interlaminar fracture toughness. Application of Fracture Mechanics to Composite Materials, ed. K. Friedrich. Elsevier, Amsterdam, 1989, pp. 159-187.
10. Richards-Frandsen, R. & Naerheim, Y., Fracture morphology of graphite/epoxy composites. J. Comp. Mater., 17 (1983) 105-113.
11. Donaldson, S. L., Fracture toughness testing of graphite/epoxy and graphite/PEEK composites. Composites, 16 (1985) 103-112.
12. Johannesson, T., Sjöblom, P. & Seldén, R., The detailed structure of delamination fracture surfaces in graphite/epoxy laminates. J. Mater. Sci., 19 (1984) 1171-1177.
13. Morris, G. E., Determining fracture directions and fracture origins on failed graphite/epoxy surfaces. Nondestructive Evaluation and Flaw Criticality for Composite Materials, ASTM STP 696, ed. R. B. Pipes. American Society for Testing and Materials, Philadelphia, PA, 1979, pp. 274-297.
14. Johannesson, T. & Blikstad, M., Fractography and fracture criteria of the delamination process. Delamination and Debonding of Materials, ASTM STP 876, ed. W. S. Johnson. American Society for Testing and Materials, Philadelphia, PA, 1985, pp. 411-423.
15. Arcan, L., Arcan, M. & Daniel, I. M., SEM fractography of pure and mixed-mode interlaminar fractures in graphite/epoxy composites. Fractography of Modern Engineering Materials: Composites and Metals, ASTM STP 948, ed. J. E. Masters & J. J. Au. American Society for Testing and Materials, Philadelphia, PA, 1987, pp. 41-67.
16. Lee, S. M., Fractography of composite materials. International Encyclopedia of Composites, Vol 2. VCH Publishers, 1990, pp. 268-289.
17. Smith, B. W. & Grove, R. A., Determination of crack propagation directions in graphite/epoxy structures. Fractography of Modern Engineering Materials: Composites and Metals, ASTM STP 948, ed. J. E. Masters & J. J. Au. American Society for Testing and Materials, Philadelphia, PA, 1987, pp. 154-173.
18. Friedrich, K., Fractographic analysis of polymer composites. Application of Fracture Mechanics to Composite Materials, ed. K. Friedrich. Elsevier, Amsterdam, 1989, pp. 425-487.
19. Russell, A. J. & Street, K. N., The effect of matrix toughness on delamination: Static and fatigue fracture under mode II shear loading of graphite fibre composites. Toughened Composites, ASTM STP 937, ed. N. J. Johnston. American Society for Testing and Materials, Philadelphia, PA, 1987, pp. 275-294.
20. Carlsson, L. A., Trethewey, B. R. & Gillespie, J. W., Mode II cyclic delamination growth. J. Comp. Mater., 22 (1988) 459-483.
21. Gilchrist, M. D. & Svensson, N., A fractographic analysis of delamination within multidirectional carbon/epoxy laminates. Comp. Sci. Technol., 55 (1995) 195-207.
22. Greenhalgh, E. S., Characterisation of mixed mode fracture in unidirectional laminates. Defence Research Agency, Contractor Report FMC CR941003, 1994.
23. Lowe, A. E., Structure and matrix dominated properties of T300/914 carbon epoxy composites. PhD thesis, Department of Material Science and Metallurgy, Cambridge University, 1992.
24. Greenhalgh, E. S., Mechanical evaluation of carbon-fibre reinforced thermoplastic I-beams. Defence Research Agency, Technical Report 92071, 1993.
25. Gamziukas, V., Skjuvprov med I-balkar av kolfiberarmerad plast med urtag i livet. FFA Report TN 1986-78, Aeronautical Research Institute of Sweden (FFA), 1986 (in Swedish).
26. Hollmann, K., Failure analysis of a shear loaded graphite/epoxy beam containing an irregular cutout. Engng. Fract. Mech., 39 (1991) 159-175.
27. Gilchrist, M. D., Kinloch, A. J. & Matthews, F. L., Mechanical performance of carbon-fibre and glass-fibre-reinforced epoxy I-beams: III - Fatigue behaviour (in prep.).
28. Gilchrist, M. D., Kinloch, A. J., Matthews, F. L. & Osiyemi, S. O., Mechanical performance of carbon-fibre and glass-fibre-reinforced epoxy I-beams: I. Mechanical behaviour. Comp. Sci. Technol. (in press).
29. LAP: Laminate Analysis Program, Centre for Composite Materials, Imperial College, London, 1991.
30. Curtis, P. T. (ed.), CRAG test methods for the measurement of the engineering properties of fibre reinforced plastics. Royal Aircraft Establishment Technical Report 88012, 1988.
31. Kaczmarek, H., Ultrasonic detection of the development of transverse cracking under monotonic tensile loading. Comp. Sci. Technol., 46 (1993) 67-75.
32. Davies, P., The effect of temperature on the interlaminar fracture of tough composites. Proc. 6th Int. Conf. on Composite Materials (ICCM-VI), Vol. 3. Elsevier, London, 1987, pp. 3284-3294.
33. Hamada, H., Ramakrishna, S. & Sato, H., Effect of testing temperature on the energy absorption behavior of carbon fibre/PEEK composite tubes. J. Reinf. Plast. Comp., 15 (1996) 30-47.
34. Hull, D., A unified approach to progressive crushing in fibre reinforced composite tubes. Comp. Sci. Technol., 40 (1991) 377-421.
35. Farley, G. L. & Jones, J. M., Analogy for the effect of material and geometrical variables on energy-absorption capability of composite tubes. J. Comp. Mater., 26 (1992) 78-89.
36. Hamada, H., Coppola, J. C., Hull, D., Maekawa, Z. & Sato, H., Comparison of energy absorption of carbon/epoxy and carbon fibre/PEEK composite tubes. Composites, 23 (1992) 245-252.
37. Shikhmanter, L., Cina, B. & Eldror, I., Fractography of multidirectional CFRP composites tested statically. Composites, 22 (1991) 437-444.
38. Bascom, W. D., Boll, D. J., Fuller, B. & Phillips, P. J., Fractography of interlaminar fracture of carbon-fibre epoxy composites. J. Mater. Sci., 20 (1985) 3184-3190.
39. Gilchrist, M. D., Kinloch, A. J., Matthews, F. L. & Wang, Y., Mechanical performance of carbon-fibre and glass-fibre-reinforced epoxy I-beams: IV - Finite element predictions (in prep.).
40. Agarwal, B. D. & Broutman, L. J., Analysis and Performance of Fibre Composites, Wiley, 1990.
41. Lovell, D. R., Carbon and High Performance Fibres Directory, 5th edn. Chapman and Hall, 1991.
42. Nairn, J. A., Hu, S. & Bark, J. S., A critical evaluation of theories for predicting microcracking in composite laminates. J. Mater. Sci., 28 (1993) 5099-5111.
43. Nairn, J. A. & Hu, S., Matrix microcracking. Damage Mechanics of Composite Materials, ed. R. Talreja. Elsevier, 1994, pp. 187-243.
44. Nairn, J. A., Some new variational mechanics results on composite microcracking. Proc. ICCM 10, Whistler, BC, Canada, 14-18 April 1995.