The response of an epoxy resin has been investigated using the methods of plate impact to generate planar shock waves. In particular, the Hugoniot, both in stress–particle velocity and shock velocity–particle velocity space, and the variation of shear strength with impact stress, have been investigated. Comparison of the results of this investigation with those of previous workers shows good agreement. Measurements of lateral stress, which have been used to determine the shear strength have indicated that shear strength increases with longitudinal stress in the range investigated. Further, lateral stresses have been shown to decrease behind the shock front, implying an increase of strength of this material during shock loading. It would seem possible that this is a manifestation of the viscoplastic nature of epoxy based resins.

1.
L. M.
Barker
and
R. E.
Hollenbach
,
J. Appl. Phys.
41
,
4208
(
1970
).
2.
D. E.
Munson
,
R. R.
Boade
, and
K. W.
Schuler
,
J. Appl. Phys.
49
,
4797
(
1978
).
3.
L. C.
Chhabildas
and
J. W.
Swegle
,
J. Appl. Phys.
53
,
954
(
1982
).
4.
A. Z.
Zhuk
,
G. I.
Kanel
, and
A. A.
Lash
,
J. Phys. IV
4
,
403
(
1994
).
5.
A. V.
Plastinin
and
V. V.
Silvestrov
,
Mech. Compos. Mater.
31
,
549
(
1995
).
6.
W. R. Thissell, A. K. Zurek, and F. Addessio, in Shock Compression of Condensed Matter 1995, edited by S. C. Schmidt and W. C. Tao (AIP, Woodbury, New York, 1996), p. 551.
7.
D. E.
Munson
and
R. P.
May
,
J. Appl. Phys.
43
,
962
(
1972
).
8.
W. J. Carter and S. P. Marsh, Hugoniot equation of state of polymers, Report No. LA-13006-MS, 1995.
9.
L. W. Meyer, F. J. Behler, K. Frank, and L. S. Magness, in Proceedings of the 12th International Symposium on Ballistics, 1990, p. 419.
10.
A. Hopkins and N. S. Brar, in Shock Compression of Condensed Matter 1999, edited by M. D. Furnish, L. C. Chhabildas, and R. S. Hixson (AIP, Melville, New York, 2000), p. 423.
11.
J. C. F.
Millett
,
N. K.
Bourne
,
Z.
Rosenberg
, and
J. E.
Field
,
J. Appl. Phys.
86
,
6707
(
1999
).
12.
N.
Bourne
,
J.
Millett
,
Z.
Rosenberg
, and
N.
Murray
,
J. Mech. Phys. Solids
46
,
1887
(
1998
).
13.
J. C. F.
Millett
and
N. K.
Bourne
,
J. Appl. Phys.
88
,
7037
(
2000
).
14.
Y. V. Bat’kov, S. A. Novikov, and N. D. Fishman, in Shock Compression of Condensed Matter 1995, edited by S. C. Schmidt and W. C. Tao (AIP, Seattle, WA, 1996), p. 577.
15.
Z.
Rosenberg
,
D.
Yaziv
, and
Y.
Partom
,
J. Appl. Phys.
51
,
3702
(
1980
).
16.
Z.
Rosenberg
and
Y.
Partom
,
J. Appl. Phys.
58
,
3072
(
1985
).
17.
J. C. F.
Millett
,
N. K.
Bourne
, and
Z.
Rosenberg
,
J. Phys. D
29
,
2466
(
1996
).
18.
K. W.
Schuler
and
J. W.
Nunziato
,
J. Appl. Phys.
47
,
2995
(
1976
).
19.
N. K.
Bourne
and
Z.
Rosenberg
,
Meas. Sci. Technol.
8
,
570
(
1997
).
This content is only available via PDF.
You do not currently have access to this content.