1. D. Broek, “Elementary engineering fracture mechanics”, 4th Revised Edn (Kluwer Academic, Boston, 1991).
2. M. R. Piggott, “Load-bearing fiber composites” (Pergamon Press, New York, 1980).
3. S. J. Grisaffe, Adv. Mater. Process.
137(3) (1990) 43.
4. Idem, ibid.
137(3) (1990) 93.
5. J. R. Stephens, ibid.
137(4) (1990) 35.