Paper Title:
A New Methodology for Estimating Fracture Criterion of Thin Sheets
  Abstract

A simple and reliable method has been proposed for determining fracture toughness of thin sheets. The principle of the method considers that critical crack opening displacement (c) corresponds to a specific amount of load drop during fracture toughness tests. The suggested technique yields c value for an interstitial free (IF) steel as 2.04 mm in excellent correspondence with an indirect estimate of 1.97 mm from the popular energy extrapolation technique. The magnitude of c for IF steel sheets is found to decrease with decreasing thickness in agreement with the expected variation of this criterion with specimen thickness in gross yielding fracture mechanics (GYFM) regime.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
305-308
DOI
10.4028/www.scientific.net/KEM.417-418.305
Citation
K. K. Ray, A. Patra, D. Bhattacharjee, "A New Methodology for Estimating Fracture Criterion of Thin Sheets", Key Engineering Materials, Vols. 417-418, pp. 305-308, 2010
Online since
October 2009
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Price
$32.00
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