Rinde, J. A., Lawrence Radiation Laboratories/Livermore, California, unpublished work.
2.
Rand, P. B., Buckner, R. , Sandia Laboratories/Albuquerque, New Mexico, unpublished work.
3.
Novak, R. C., Bert, C. W., "Theoretical and Experimental Bases for More Precise Elastic Properties of Epoxy," Journal of Composite Materials, Vol. 2, No. 4 (1968), p. 506.
4.
Lubitz, H., "Minicel Polypropylene Foam," Journal of Cellular Plastics, Vol. 5, No. 4 (1969), p. 221.
5.
Hermansen, R. D., Rapid Attainment of Dimensional Stability in Molded Urethane Foam Parts, SC-DR-68-649, Sandia Laboratories/Albuquerque, New Mexico (December 1968).
6.
Ball, B. A., NOPCO Bx 105C Series Rigid Foam Characterization, SC-DR-67-697, Sandia Laboratories /Albuquerque, New Mexico (October 1967).
7.
Traeger, R. K., "Physical Properties of Rigid Polyurethane Foams," Journal of Cellular Plastics, Vol. 3, No. 9 (1967), p. 405.
8.
Briscall, H., Thomas, C. R., "Cellular Structure and Physical Properties of Plastics," British Plastics, Vol. 41, No. 7 (1968), p. 79.
9.
Kujawa, F. M., "High Density Urethane Foam Prepared by the One-Shot Technique," Journal of Cellular Plastics, Vol. 1, No. 3 (1965), p. 400.
10.
Bender, R. J., ed., Handbook of Foamed Plastics , Lake Publishing Corp./Libertyville, Illinois, pp. 105-109.
11.
Benning, C. J., "Polyethylene Foam III—Orientation in Thermoplastic Foams," Journal of Cellular Plastics, Vol. 3, No. 4 (1967), p. 174.
12.
Hermansen, R. D., Sandia Laboratories/Albuquerque, New Mexico, unpublished data.
13.
Rand, P. B., Further Physical Property Characterization of 3.0 and 6.0 lb/ft3 Carbon Foams, SC-DR-69-113 , Sandia Laboratories/Albuquerque, New Mexico (March 1969).
14.
Rand, P. B., Physical Property Characterization of 3.0 and 6.0 lb/ft3 Carbon Foams, SC-DR-68-793, Sandia Laboratories/Albuquerque, New Mexico (December 1968).
15.
Hartsock, J. A., "Experiments on the Creep of Rigid Urethane Foam in Shear," Journal of Cellular Plastics, Vol. 3, No. 2 (1967), p. 81.
16.
Lepper, J. K., Hetherington, N. W., A Statistical Description of the Uniaxial Creep Behavior of Polypropylene Foam, Lawrence Radiation Laboratories/Livermore, California, UCRL-70158 (September 26, 1966).
17.
Lepper, J. K., Hammon, H. G., Thompson, P. R., Creep Properties of Polystyrene Bead Foam, Lawrence Radiation Laboratories/Livermore, California, UCRL-14919, Rev. 1 (October 15, 1966).
18.
Chambers, R. E., Structural Properties of Rigid Foams, MIT R63-13 (February 1963).
19.
Rosen, B., ed., Fracture Processes in Polymeric Solids, Interscience, (1964).
20.
Andrews, E. H., Fracture in Polymers, American Elsevier (1968).