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ASTM Selected Technical Papers
Fracture Mechanics: Nineteenth Symposium
By
TA Cruse
TA Cruse
1
Southwest Research Institute
,
San Antonio, TX 78284
;
symposium chairman and editor
.
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ISBN-10:
0-8031-0972-5
ISBN:
978-0-8031-0972-8
No. of Pages:
952
Publisher:
ASTM International
Publication date:
1988

Approximate methods that are less time-consuming than finite-element method (FEM) analysis are needed for dynamic crack propagation and arrest calculations. In this context the one-dimensional wave propagation models, where the cracked section is modeled by a flexibility matrix, may be a reasonable alternative. Such models are compared with fully dynamic two-dimensional FEM calculations of experimentally observed crack growth histories in an edge-cracked rectangular sheet. A fairly good agreement is obtained; the discrepancies could mainly be ascribed to differences in the end conditions. The author concludes that spring models are worth further examination in order to make them a practical tool for engineering design analysis.

1.
Brickstad
,
B.
and
Nilsson
,
F.
,
Engineering Fracture Mechanics
 0013-7944, Vol.
23
, No.
1
,
1986
, pp. 61-70.
2.
Freund
,
L. B.
and
Herrmann
,
G.
,
Journal of Applied Mechanics
 0021-8936, Vol.
43
,
1976
, pp. 112-116.
3.
Adeli
,
H.
,
Herrmann
,
G.
, and
Freund
,
L. B.
,
Journal of Applied Mechanics
 0021-8936, Vol.
44
,
1977
, pp. 647-651.
4.
Rice
,
J. R.
and
Levy
,
N.
,
Journal of Applied Mechanics
 0021-8936, Vol.
39
,
1972
, pp. 185-194.
5.
Brickstad
,
B.
and
Nilsson
,
F.
,
International Journal of Fracture
, Vol.
16
, No.
1
,
1980
, pp. 71-84.
6.
Brickstad
,
B.
,
International Journal of Fracture
, Vol.
21
,
1983
, pp. 177-191.
7.
Benthem
,
J. P.
and
Koiter
,
W. T.
in
Methods of Analysis to Crack Problems
,
Sih
G. C.
, Ed.,
Noordhoff, Leyden
,
The Netherlands
,
1973
, Chapter 3, pp. 159-162.
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