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ASTM Selected Technical Papers
Fracture Analysis: Proceedings of the 1973 National Symposium on Fracture Mechanics, Part II
By
GR Irwin
GR Irwin
1Dept. of Mechanical Engineering,
University of Maryland
, College Park,
Md.
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ISBN-10:
0-8031-0361-1
ISBN:
978-0-8031-0361-0
No. of Pages:
261
Publisher:
ASTM International
Publication date:
1974

A new concept in elastic-plastic analysis using finite element techniques is analyzed. The resulting procedural scheme, called Unimod, is found to be an effective method of performing stress analysis of complex elastic-plastic defect problems which cannot be handled by classical elastic fracture mechanics. Advantages of the Unimod scheme include extreme versatility, universal applicability to existing programs and conceptual as well as operational simplicity.

1.
Hilton
,
P. D.
and
Hutchinson
,
J.
,
Journal of Engineering Fracture Mechanics
, Vol.
3
,
1971
, pp. 435–451.
2.
Swedlow
,
J. L.
,
Williams
,
M. L.
, and
Yang
,
W. H.
,
Proceedings
, First International Conference on Fracture, Vol.
1
,
1965
, pp. 259–282.
3.
Rice
,
J. R.
and
Tracey
,
D. M.
, “
Computational Fracture Mechanics
,”
Proceedings
, International Symposium on Numerical and Computer Methods in Structural Mechanics,
Urbana, Illinois
,
09
1971
.
4.
Hibbit
,
H. D.
,
Marcal
,
P. V.
, and
Rice
,
J. R.
,
International Journal of Solids and Structures
 0020-7683, Vol.
6
,
1970
, pp. 1069–1086.
5.
Griffis
,
C. A.
, “
Finite Element Analysis of Notched Tensile Specimens in Plane Stress
,” NRL Report 7278,
09
1971
.
6.
Carroll
,
W. E.
, “
An Optimum Idealization in Discrete Element Analysis
,”
Doctoral Dissertation, Dept. of Engineering Science & Mechanics, Va. Polytechnic Institute and State University
,
1971
.
7.
McClintock
,
F. A.
and
Irwin
,
G. R.
,
Fracture Toughness Testing and Its Applications, ASTM STP 381
,
American Society for Testing and Materials
,
1964
, pp. 85–113.
8.
Wilson
,
E. L.
, “
Finite Element Analysis of Two Dimensional Structures
,” Ph.D. Dissertation,
University of California
, Berkeley,
1963
.
9.
Underwood
,
J. H.
,
Swedlow
,
J. L.
, and
Kendall
,
D. P.
, “
Experimental and Analytical Strains in an Edge-Cracked Sheet
,”
Benet R. & E. Laboratory
, Technical Report WVT-6933,
09
1969
, Watervliet, N. Y.
10.
Underwood
,
J. H.
,
Swedlow
,
J. L.
, and
Kendall
,
D. P.
,
Engineering Fracture Mechanics
 0013-7944, Vol.
2
,
1971
, pp. 183–196.
11.
Oliviera
,
E. R.
Arantes
, “
Optimization of Finite Element Solutions
,”
Proceedings
, 3rd Conference on Matrix Methods in Structural Mechanics,
Wright-Patterson Air Force Base
,
Ohio
,
1971
.
12.
Turcke
,
D. J.
and
McNiece
,
G. M.
, “
A Variational Approach to Grid Optimization in the Finite Element Method
,”
International Conference on Variational Methods in Engineering
,
University of Southhampton
,
U. K.
,
09
1972
.
13.
McNiece
,
G. M.
and
Marcal
,
P. V.
, “
Optimization of Finite Element Grids Based on Minimum Potential Energy
,”
Journal of Engineering for Industry
 0022-0817,
Transactions
 0022-0817, American Society of Mechanical Engineers,
06
1972
.
14.
Reifsnider
,
K.
and
Nair
,
P.
, “
Unimod: An Applications-Oriented Finite Element Scheme for Fracture Mechanics Analysis
,” VPI-E-73-18,
College of Engineering, Virginia Polytechnic Institute and State University
, Blacksburg, Va.,
04
1973
.
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