Abstract
An analytical method for the determination of critical value of crack tip opening displacement at initiation of crack growth δc of a three-point bend specimen is presented. It is based on the formulation of subcritical crack growth in such a specimen. The values of δc obtained by this single specimen method are in excellent agreement with those obtained by the standard multispecimen method. It is emphasized that it would be necessary to use blunting line correction when the multispecimen method is used.
References
1.
Lai
, Z. H.
, Chen
, L. J.
, Zhang
, J. M.
, Ma
, C. X.
, and Zhao
, J. X.
, “A New Method of Determination of JIc of Steel by Means of Single Specimen
,” Engineering Fracture Mechanics
0013-7944, Vol. 17
, No. 5
, 1983
, pp. 395
-403
.2.
Chen
, C.
, Dien
, G. S.
, Pun
, H.
, Zuon
, T.
, and Yao
, H.
, On Some Problems in JIc Determination with a Single Specimen
, The Chinese Society of Metals
, 1977
.3.
Tada
, H.
, Paris
, P. C.
, and Irwin
, G. E.
, The Stress Analysis of Cracks Handbook
, Del Research Coorporation
, Hellertown, PA
, 1973
, p. 2.17.4.
Ma
, C. X.
, “On the Complete Computerization of JIc Determination by the Single Specimen Method
,” Journal of Northeast Institute of Technology
, No. 2
, 1982
, pp. 119
-128
.5.
Willoughby
, A. A.
, Pratt
, P. L.
, and Turner
, C. E.
, “The Meaning of Elastic-Plastic Fracture Criteria during Slow Crack Growth
,” International Journal of Fracture
, Vol. 17
, No. 5
, 1981
, pp. 449
-465
.
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