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An understanding of the effects of thermo-oxidation in high-temperature PMCs for structural components subjected to arbitrary service environments is critical to life-performance predictions. Durability and degradation mechanisms in composites are fundamentally influenced by the fiber, matrix, and interphase regions that constitute the composite domain. The thermo-oxidative behavior of the composite is significantly different from that of the constituents as the composite microstructure, including the fiber/matrix interphases/interfaces, architecture, and ply layup introduce anisotropy in the diffusion and oxidation behavior. In this work, light microscopy and scanning electron microscopy techniques are used to characterize the oxidative process in laminated and textile carbon-fiber-reinforced polyimide composites. The observed anisotropy in composite oxidation is explained by carefully monitoring the development and growth of damage through the use of fluorescence imaging using dye impregnation. It is shown that alternative pathways for transport of oxygen into the interior of the composite are fiber–matrix debonds and matrix cracks that propagate with the oxidation front. It has been further determined through closer examination of the oxidation front and the crack front for discrete regions of the various composite specimens, that the oxidation front consistently precedes the crack front. This mechanism for accelerated oxidation is an excellent example of the intrinsic coupling of chemical oxidative aging and damage, which needs to be properly represented in predictive models.
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Schoeppner, G. A., Tandon, G. P., and Pochiraju, K. V. (2008) “Predicting thermo-oxidative degradation and performance of high temperature polymer matrix composites” in Multiscale Modeling and Simulation of Composite Materials and Structures, Y. Kwon, D. Allen and R. Talreja, eds, ISBN: 978-0-387-36318-9, Springer Verlag, pp 359–462. CrossRef
Saff, C., Hahn, G., Griffith, J., Ingle, R. and Nelson, K. (2005) Accelerated insertion of materials – composites. AIAA-2005–2165 46th AIAA/ASME/ASCE/ AHS/ASC Structures, Structural Dynamics and Materials Conference, Austin TX.
Accelerated Test Methods for Durability of Composites, High Speed Research Materials Durability (Task 23), High Speed Research Program, March 1998.
Brinson, L. C. and Gates, T. S. (1995) Effects of physical aging on long term creep of polymers and polymer matrix composites. Int. J Solids Struct, 32:827–46. CrossRef
Veazie, D. R. and Gates, T. S. (1998) Effects of aging-time reference on the long term behavior of the IM7/K3B composite. 39th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference Paper AIAA 98–1962.
Struik, L. C. E. (1978) Physical aging in amorphous polymers and other materials. Elsevier, Amsterdam.
Seferis, J. C. (1999) Aging analyses of polymer composites through time-temperature equivalence. J Comp Tech and Research 21:173–179. CrossRef
Sullivan, J. L. (1990) Creep and physical aging of composites. Comp Sci and Tech 39:207–32. CrossRef
McKenna, G. B. (1994) On the physics required for the prediction of long term performance of polymers and their composites. J. Res. NIST, 99:169–189.
Scott, D. W., Lai, J. S. and Zureick, A. H. (1995) Creep behavior of fiber reinforced polymeric composite: a review of the technical literature. Journal of Reinforced Plastics and Composites 14:588–617.
Lincoln, J. E. (2001) Structure-property-processing relationships and the effects of physical structure on the hygrothermal durability and mechanical response of polyimides. Ph.D. Thesis, Michigan State University.
Colin, X. and Verdu, J. (2005). Strategy for studying thermal oxidation of organic matrix composites. Composite Science & Technology, 65:411–419. CrossRef
Colin, X., Marais, C. and Verdu, J. (2005) Kinetic modeling of the stabilizing effects of carbon fibers on thermal aging of thermoset matrix composites. Comp Sci and Tech 65:117–127. CrossRef
Tandon, G. P., Pochiraju, K. V. and Schoeppner, G. A. (2008) Thermo-oxidative behavior of high temperature PMR-15 resin and composites. Materials Science and Engineering – A, 498: 150–161. CrossRef
Tandon, G. P. and Pochiraju, K. V. (2011) “Heterogeneous thermo-oxidative behavior of multidirectional laminated composites,” Journal of Composite Materials 45(4):415–435. CrossRef
Skontorp, A., Wong, M. S. and Wang, S. S. (1995), High-temperature anisotropic thermal oxidation of carbon-fiber reinforced polyimide composites. Theory and experiment. Proc of ICCM-10, Whistler B.C., Canada, IV:375.
Wang, S. S., Chen, X. and Skontorp, A. (2003) High-temperature mechanics modeling and experiments of thermal oxidation, degradation and damage evolution in carbon/fiber/polyimide composites. Technical Report CEAC-TR-03-0106, University of Houston.
Bowles, K. J. and Nowak, G. (1988) Thermo-oxidative stability studies of Celion 6000/PMR-15 unidirectional composites, PMR-15, and Celion 6000 fiber. J Composite Materials 22:966–985. CrossRef
Bowles, K. J., Jayne, D., Leonhardt, T. A. and Bors, D. (1993) Thermal stability relationships between PMR-15 resin and its composites. NASA Technical Memorandum 106285.
Bowles, K. J. (1999) Durability of graphite-fiber reinforced PMR-15 composites aged at elevated temperatures. J Comp Tech and Research 21:127–132. CrossRef
Wong, M. S., Skontorp, A. and Wang, S. S. (1994) Thermal oxidation of carbon fibers and carbon-fiber reinforced high-temperature polyimide composite at elevated temperature. In: Proc. of Am. Soc. Comp., 9 th Tech. Conf., Technomic Publ. Co., Lancaster, PA., 458–467.
Tsotsis, T. K. (1998) Long-term thermo-oxidative aging in composite materials: experimental methods. Journal of Composite Materials 32:1115–1135. CrossRef
Tsotsis, T. K. and Lee, S. M. (1998) Long-term thermo-oxidative aging in composite materials: failure mechanisms. Composites Science and Technology, 58:355–368. CrossRef
Tsotsis, T. K., Keller, S., Lee, K., Bardis, J. and Bish, J. (2001) Aging of polymeric composite specimens for 5000 hours at elevated pressure and temperature. Comp Sci and Tech 61:75–86. CrossRef
Abdeljaoued, K. (1999) Thermal oxidation of PMR-15 polymer used as a matrix in composite materials reinforced with carbon fibers. MS thesis, Ecole Nationale Superieure des Arts et Metiers, Paris.
Bellenger, V., Decelle, J. and Huet, N. (2005) Aging of a carbon epoxy composite for aeronautic applications. Composites Part B: Engineering 36:189–194. CrossRef
Whitley, K. S. and Collins, T. J. (2006) Mechanical properties of T650/AFR-PE-4 at elevated temperatures for lightweight aeroshell designs. AIAA-2006-2202 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Newport, Rhode Island, AIAA-2006-2202.
Nelson, J. B. (1983) Thermal aging of graphite polyimide composites,” in Long-Term Behavior of Composites, T. K. O’Brien, ed., ASTM STP 813: American Society for Testing and Materials, Philadelphia, pp. 206–221.
Bowles, K. J., and Meyers, A. (1986) Specimen geometry effects on graphite/PMR-15 composites during thermo-oxidative aging,” in Proceedings 31st International SAMPE Symposium, April 7–10, 1986.
Bowles, K. (1991) Effect of fiber reinforcements on thermo-oxidative stability and mechanical properties of polymer matrix composites. NASA TM 103648.
Nam, J. D. and Seferis, J. C. (1992) Anisotropic thermo-oxidative stability of carbon fiber reinforced polymeric composites. SAMPE Quarterly 24:10–18.
Salin, I. M. and Seferis, J. C. (1993) Anisotropic effects in thermogravimetry of polymeric composites. J. Polymer Science 31:1019–1027.
Schoeppner, G. A., Tandon, G. P. and Ripberger, E. R. (2007) Anisotropic oxidation and weight loss in PMR-15 composites. Composites Part A: Applied Science and Manufacturing 38:890–904. CrossRef
Tandon, G. P., Ragland, W. R. and Schoeppner, G. A. (2009) Using optical microscopy to monitor anisotropic oxidation growth in high-temperature polymer matrix composites. Journal of Composite Materials, 43:583–603. CrossRef
Weitsman, Y. (1987) Stress assisted diffusion in elastic and viscoelastic materials. J. Mechanics and Physics of Solids, 35(1):73–97. CrossRef
Bowles, K. J., Madhukar, M., Papadopolous, D. S., Inghram, L. and McCorkle, L. (1995) The effects of fiber surface modification and thermal aging on composite toughness and its measurement. NASA TM-106765.
Upadhyaya, D. and Tsakiropoulos, P. (1995) Evaluation of the effect of sizing levels on transverse flexural and shear strengths of carbon/epoxy composites. Journal of Materials Processing Technology 54:17–20. CrossRef
Paipetis, A. and Galiotis, C. (1996) Effect of fiber sizing on stress transfer efficiency in carbon/epoxy model composites. Composites Part A 27A:755–767. CrossRef
Kung, H. K. (2006) Effects of surface roughness on high-temperature oxidation of carbon-fiber-reinforced polyimide composites. Journal of Composite Materials 39:1677–1687. CrossRef
Skontorp, A. and Wang, S. S. (1995) High temperature creep with physical and chemical aging, and associated viscoelastic constitutive equations of polyimide-matrix composites. Recent Advances in Composite Materials, S.R. White. H.T. Hahn, and W.F. Jones, Eds., ASME MD Vol. 56, American Society of Mechanical Engineers, New York, NY, 57–70.
Kung, H. K. (1996) High-temperature oxidation, aging and creep in carbon-fiber reinforced polyimide composites during thermal fatigue. Ph.D. Thesis, Univ. of Houston, TX.
McManus, H. L., and Chamis, C. C. (1996) Stress and damage in polymer matrix composite materials due to material degradation at high temperatures,” NASA Technical Memorandum 4682.
Colin, X. and Verdu, J. (2003) Thermal aging and lifetime prediction for organic matrix composites. Plastics, Rubber and Composites 32:349–356. CrossRef
Zhang, Y., Xia, Z. and Ellyin, F. (2005) Nonlinear viscoelastic micromechanical analysis of fibre-reinforced polymer laminates with damage evolution. International Journal of Solids and Structures 42:591–604. CrossRef
Ahci, E. and Talreja, R. (2006) Characterization of viscoelasticity and damage in high temperature polymer matrix composites. Comp Science and Tech. 66:2506–2519. CrossRef
Colin, X., Mavel, A., Marais, C. and Verdu, J. (2005) Interaction between cracking and oxidation in organic matrix composites,” Journal of Composite Materials, 39:1371–1389. CrossRef
Pochiraju, K. V. and Tandon, G. P. (2009) Interaction of oxidation and damage in high temperature polymeric matrix composites. Composites Part-A, V 40, Issue 12, pp. 1931–1940. CrossRef
Lafarie-Frenot, M. C., and Rouquie, S. (2004) Influence of oxidative environments on damage in C/epoxy laminates subjected to thermal cycling. Composites Science and Technology, 64:1725–1735. CrossRef
Rouquie, S., Lafarie-Frenot, M. C., Cinquin, J. and Colombaro, A. M. (2005) Thermal cycling of carbon/epoxy laminates in neutral and oxidative environments. Composites Science and Technology, 65: 403–409. CrossRef
Ammar-Khodja, I., Picard, C., Fois, M., Marais, C. and Netchitailo, P. (2009) Preliminary results on thermo-oxidative aging of multi-hole carbon/epoxy composites. Composites Science and Technology, 69:1427–1431. CrossRef
Bowles, K. J., McCorkle, L. and Ingraham, L. (1998) Comparison of graphite fabric reinforced PMR-15 and Avimid N composites after long term isothermal aging at various temperatures. NASA/TM-1998-107529.
Bowles, K. J., Tsuji, L., Kamvouris, J. and Roberts, G. D. (2003) Long-term isothermal aging effects on weight loss, compression properties, and dimensions of T650-35 fabric-reinforced PMR-15 composites–data. NASA TM-2003-211870.
Bowles, K. J. (1998) Thermal and mechanical durability of graphite-fiber-reinforced PMR-15 composites. NASA TM 113116/REV1.
Cunningham, R. A. (1996) High temperature degradation mechanisms in polymer matrix composites. MS Thesis, M.I.T., Cambridge, MA.
Chung, K., Seferis, J. C. and Nam, J. D. (2000) Investigation of thermal degradation behavior of polymeric composites: prediction of thermal cycling effect from isothermal data. Composites Part A 31:945–957. CrossRef
Chung, K. and Seferis, J. C. (2001) Evaluation of thermal degradation on carbon fiber/cyanate ester composites. Poly Degradation and Stability 71:425–434. CrossRef
Tandon, G. P., Hall, R. B., Jefferson, G. and Hay, R. (2009) Durability and damage tolerance of complex 3-d fiber composites. Presented at AFOSR Low Density Materials Program Review, Oct. 8–9, Arlington, VA.
Tandon, G. P., Ragland, W. R., and Hall, R. B. (2010) Thermo-oxidative response of polyimide textile composites. Presented at 30th High Temple Workshop, Feb 1–4, Destin, FL.
- Characterization of Thermo-Oxidation in Laminated and Textile Composites
G. P. Tandon
- Springer US
- Chapter 9
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