The effect of cooling rate from the molten state and annealing from the amorphous state on thermal and crystallization residual stress development in graphite fibre reinforced polyetheretherketone (APC-2) laminates is studied experimentally by measuring the radius of curvature developed in (0/90) unsymmetric laminates. Curvature is measured for cooling rates ranging from 1.5°C/min to 8000°C/min, and for annealing temperatures ranging from 175°C to 250°C. Stress relaxation effects are also quantified.
O'Bnen, T.K.1986. "Fatigue Delamination Behavior of PEEK Thermoplastic Composite Laminates," Proceedings lst Technical Conference , Oct 7-9, 1986, American Society for Composites , pp. 404-420
2.
Jeronimidis, G. and A.T. Parkyn.1988. "Residual Stresses in Carbon Fibre-Thermoplastic Matrix Laminates," Journal of Composite Materials, 22:401-415
3.
Nairn, J.A. and P. Zoller.1985. "Residual Thermal Stresses in Semicrystalline Thermoplastic Matrix Composites," Proceedings of the Fifth International Conference on Composite Materials, San Diego, California, July 29-30, 1985, pp. 931-946
4.
Nairn, J.A. and P. Zoller.1987 "The Development of Residual Thermal Stresses in Amorphous and Semicrystalline Thermoplastic Matrix Composites ," in Toughened Composites, ASTM STP 937, N J Johnston, ed., pp. 328-341
5.
Schulte, K.J. and H.T. Hahn.1989. "Prediction and Control Processing-Induced Residual Stresses in Composites: Part II AS4/PEEK Composite," final technical report, Air Force Office of Scientific Research, Grant 87-0242.
6.
Young, R.J., R.J. Day, M. Zakikhani and I.M. Robinson.1989. "Fibre Deformation and Residual Thermal Stresses in Carbon Fibre Reinforced PEEK," Composites Science and Technology, 34:243-258.
7.
Galiotis, C. , N. Melanitis, D.N. Batchelder, I.M. Robinson and J.A. Peacock.1988 "Residual Strain Mapping in Carbon Fibre/PEEK Composites," Composites, 19(4).321-324.
8.
Chapman, T.J. , J.W. Gillespie, Jr., R.B. Pipes, J.A.E. Manson and J.C. Seferis.1990. "Prediction of Process Induced Residual Stresses in Thermoplastic Composites ," Journal of Composite Materials, 24:616-643.
9.
Unger, W.J. and J.S. Hansen. In press. "The Effect of Thermal Processing on Residual Strain Development in Unidirectional Graphite Fibre Reinforced PEEK," Journal of Composite Matenals.
10.
Blundell, D.J. , J.M. Chalmers, M.W. Mackenzie and W.F. Gaskin.1985. " Crystalline Morphology of the Matrix of PEEK-Carbon Fiber Aromatic Polymer Composites I Assessment of Crystallinity," SAMPE Quarterly , 16(4).22-30.
11.
Downs, R.J. and L.A. Berglund.1987. "Apparatus for Preparing Thermoplastic Composites," Journal of Reinforced Plastics and Composites, 6.89-99.
12.
Curtis, P.T. , P. Davies, I.K. Partidge and J.P. Sainty.1987. "Cooling Rate Effects in PEEK and Carbon-Fibre PEEK Composites," Proceedings 6th International Conference on Composite Materials. London : Elsevier, pp. 4.401-4.412.
13.
Grossman, S.P. and M.F. Amateau.1988. "The Effect of Processing on Graphite Fiber/Polyether-Ether-Ketone Thermoplastic Composites ," Proceedings 33rd SAMPE Symposium, pp. 681-692.
14.
Davies, P., W. Cantwell, H. Richard, C. Mowlm and H.H. Kansch.1989 "Interlaminar Testing of Carbon Fiber/PEEK Composites,"Proceedings 3rd European Conference on Composite Matenals, Bordeaux, France, March 20-23, 1989.
15.
Blundell, D.J. and B.N. Osborn.1985. "Crystalline Morphology of the Matrix of PEEK-Carbon Fiber Aromatic Polymer Composites. II: Crystallization Behavior," SAMPE Quarterly, 17(1) 1-16
16.
Cebe, P., S. Hong and A. Gupta.1987. "Mechanical Properties and Morphology of Polyetheretherketone ," Toughened Composites, ASTM STP 937. Philadelphia: ASTM, pp. 342-357
17.
Ostberg, G. and J.C. Sefens.1987. "Annealing Effects on the Crystallinity of Polyetheretherketone (PEEK) and Its Carbon Fibre Composite ," Journ. of Appl. Poly. Science, 33:29-39.
18.
Timoshenko, S.1925. "Analysis of B1-Metal Thermostats," Journal of the Optical Society of America, 11:233-255
19.
Hyer, M.W.1981 "Some Observations on the Cured Shape of Thin Unsymmetric Laminates," Journal of Composite Materials, 15:175-193
Hamamoto, A. and M.W. Hyer.1987 "Non-Linear Temperature-Curvature Relationships for Unsymmetric Graphite Epoxy Laminates ," International Journal of Solids and Structures, 23(7) 919-935
22.
Kenny, J. , A. D'Amore, L. Nicolais, M. lannone and B. Scatteia.1989 "Processing of Amorphous PEEK and Amorphous PEEK Based Composites," SAMPE Journal, 25(4):27-34.
23.
Talbott, M.F. , G.S. Springer andL.A. Berglund.1987. "The Effects of Crystallmity on the Mechanical Properties of PEEK Polymer and Graphite Fiber Reinforced PEEK," Journal of Composite Materials, 21:1056-1081.
