Skip to Main Content
Skip Nav Destination
ASTM Selected Technical Papers
Composite Materials: Testing and Design (6th Conference)
By
IM Daniel
IM Daniel
1
Professor and Director
,
Experimental Stress Analysis Laboratory, Illinois Institute of Technology
,
Chicago,
Illinois
;
symposium chairman and editor
Search for other works by this author on:
ISBN-10:
0-8031-0695-5
ISBN:
978-0-8031-0695-6
No. of Pages:
597
Publisher:
ASTM International
Publication date:
1982

Experimental studies of acoustic backscattering in the Rayleigh region (0.1 ≤ ka ≤ 1.0) from fiber-reinforced composites were conducted. A significant increase in backscattering was observed for those orientations which place the axis of the fibers or other discontinuities at normal incidence to the acoustic beam. Fiber orientations and the distribution of cracks within specific plies were easily mapped by this technique.

1.
Morse
,
P. M.
and
Ingard
,
K. V.
,
Theoretical Acoustics
,
McGraw-Hill
,
New York
,
1968
.
2.
Aks
,
S. O.
and
Vezzetti
,
D. J.
,
Ultrasonic Imaging
 0161-7346, Vol.
2
, No.
2
,
1980
, pp. 85-101.
3.
Vezzetti
,
D. J.
and
Aks
,
S. O.
,
Ultrasonic Imaging
 0161-7346, Vol.
2
, No.
3
,
1980
, pp. 195-212.
4.
Lax
,
M.
,
Review of Modern Physics
, Vol.
23
, No.
4
,
1951
, pp. 287-310.
5.
Waterman
,
P. C.
and
Truell
,
R.
,
Journal of Mathematical Physics
 0022-2488, Vol.
2
, No.
4
,
1961
, pp. 512-537.
6.
O'Donnell
,
M.
and
Miller
,
J. G.
,
Journal of Applied Physics
 0021-8979, Vol.
52
, No.
2
,
1981
, pp. 1056-1065.
7.
Varadan
,
V. K.
,
Varadan
,
V. V.
, and
Pao
,
Y.
,
Journal of the Acoustical Society of America
 0001-4966, Vol.
63
, No.
5
,
1978
, pp. 1310-1319.
8.
Bose
,
S. K.
and
Mal
,
A. K.
,
International Journal of Solid Structures
, Vol.
9
,
1973
, pp. 1075-1085.
9.
Data
,
S. K.
,
Journal of Applied Mechanics
 0021-8936, Vol.
42
, No.
3
,
1975
, pp. 165-170.
10.
Chang
,
S. L.
,
Journal of Applied Mechanics
 0021-8936, Vol.
36
, No.
9
,
1969
, pp. 523-527.
This content is only available via PDF.
You do not currently have access to this chapter.
Close Modal

or Create an Account

Close Modal
Close Modal