The Effect of Water Immersion on the Mechanical Properties of Polystyrene Bead Foam Used in Soft Shell Cycle Helmets

McIntosh, A. and B. Dowdell. 1992. "A Field and Laboratory Study of the Performance of Pedal Cycle Helmets in Real Accidents," IRCOB (International Research Committee on Biokinetics of Impacts) Conf., Verona, IR-COBI Secretariat, Lyon pp. 51-60.

BS 6863. 1987. Pedal Cyclists' Helmets. London: British Standards Institution.

Dechow, F. J. and K. A. Epstein. 1978. ASTM STP 660, Thermal Measurements of Insulation, Philadelphia: American Society for Testing and Materials, p. 234.

Benning, C. J. 1969. Plastic Foams, Volume 1—Chemistry and Physics of Foam Formation. New York: Wiley Interscience.

Gibson, L. J. and M. F. Ashby. 1988. Cellular Solids. Oxford: Pergamon Press.

Stupak, P. R. , W. O. Frye and J. A. Donovan. 1991. "The Effect of Bead Fusion on the Energy Absorption of Polystyrene Foam," J. Cellular Solids, 27:484.

Schreyer, G. 1972. Construieren mit Kunststoffen. Vol. 2, Munich : Carl Hanser, p. 247.

Skinner S. J. , et al., 1965 . "How Polystyrene Foam Expands," Plastics Engng., 42:171.

Luikov, A. V 1968. Analytical Heat Diffusion Theory. London: Academic Press.

Skinner, S. J. and S. D. Eagleton. 1964. "Some Aspects of the Steam Moulding Process for Expandable Polystyrene, Part III," Plastics Institute Trans, 32:231.

Menges, G. and F. Knipshield. 1982. "Stiffness and Strength-Rigid Plastics Foams," in Mechanics of Cellular Polymers, N. C. Hilyard , ed., Barking : Applied Science.

Gilchrist, A. and N. J. Mills. 1987. "Fast Fracture of Rubber Toughened Thermoplastics used for the Shells of Motorcycle Helmets ," J. Mater. Sci., 22:2397-2406.

Knott, J. F. 1973. Fundamentals of Fracture Mechanics. London: Butter-worth, p. 228.

Mills, N. J. 1994. "Impact Properties," in The Physics of Low Density Cellular Solids, N. Hilyard and Cunningham , eds., London: Chapman & Hall.

Hodgson, V. R. 1990. "Impact, Skid and Retention Tests on Bicycle Helmets to Determine Their Head-Neck Protective Characteristics," report of Wayne State Univ., Dept. of Neurosurgery, Detroit.

1993. "Draft for Protective Helmets for Pedal Cyclists," Comite Europeen de Normalisation, Brussels, prEN 1078.

AS 2512.2. 1983. "General Requirements for the Conditioning and Preparation of Test Specimens and Laboratory Conditions," Standards Association of Australia.

Gilchrist, A. and N. J. Mills. 1991. "The Effectiveness of Foams in Bicycle and Motorcycle Helmets," Accident Analysis and Prevention, 23:153.