Paper Title:
Dynamic J-Integral Evaluation of Three-Point-Bend Beams with Various Geometrical Dimensions
  Abstract

J-Integral is the main effective and commonly used tool for cracked elastic-plastic material resistance assessment. Determination of fracture toughness under impact loading conditions is related with problems of crack length measurement. Nevertheless, current experimental techniques restrict the specimen’s geometry taking into account span and height ratio, which is equal to four. Evaluation of fracture toughness estimation method which requires only experimental load-line displacement curve of single specimen is research object of dynamic fracture mechanics. This article proposes an approach of impact fracture toughness determination of elastic-plastic steel from single any size specimen test. Load-line displacement data obtained from three-point-bending tests of rectangular cross section specimens with V form single edge notch was used for J-integral calculation. Five series of specimens with different geometry were manufactured from ductile steel and tested.

  Info
Periodical
Key Engineering Materials (Volumes 488-489)
Edited by
Z. Tonković and M.H. Aliabadi
Pages
630-633
DOI
10.4028/www.scientific.net/KEM.488-489.630
Citation
M. Gintalas, A. Žiliukas, K. Kalniņš, "Dynamic J-Integral Evaluation of Three-Point-Bend Beams with Various Geometrical Dimensions", Key Engineering Materials, Vols. 488-489, pp. 630-633, 2012
Online since
September 2011
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Price
$32.00
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