On Fracture Mechanics Testing Technique Based on Compliance of Specimens

Abstract:

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Based on compliance testing of a straight-notch compact tensile (SN-CT) or a single edge bending (SEB) specimen, this paper present a formula with increment form to calculate plastic part of J-integral, two formulas for a SN-CT specimen and a SEB specimen to transform crack mouth opening displacement (CMOD) v0 to the crack opening displacement (COD) q along load line, and simplified formulas to estimate crack length a and effective young’s modulus E. Furthermore, the relation between v and q of the SN-CT specimens of 45 steel and SEB specimens of 30Cr steel were investigated. The results show that the formulas to describe the relation between the ratio v/q and the dimensionless crack length a/w of the specimens accord with the testing results better.

Info:

Periodical:

Key Engineering Materials (Volumes 385-387)

Edited by:

H.S. Lee, I.S. Yoon and M.H. Aliabadi

Pages:

293-296

DOI:

10.4028/www.scientific.net/KEM.385-387.293

Citation:

L. X. Cai et al., "On Fracture Mechanics Testing Technique Based on Compliance of Specimens", Key Engineering Materials, Vols. 385-387, pp. 293-296, 2008

Online since:

July 2008

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Price:

$35.00

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