Paper Title:
Fracture Properties of Softwood under Mode I Loading Perpendicular to the Grain
  Abstract

Fracture properties of softwood under mode I loading perpendicular to the grain are studied in this paper. The stress intensity factor KIC in the R and L directions is measured by the compact tension test using small several specimens. The shape and size of plastic zone in crack tip is determined by numerical simulations based on von Hill yield criterion. The results show that anisotropic material constants do not affect the length of plastic zone along crack direction and it only operates on the plastic zone with θcr≠ 0. Strength ratios α1, α2 and toughness ratios r1, r2, influencing on the plastic zone, are discussed. Comparative analysis shows that r1 and r2 work markedly on the shape and size of plastic zone, whereas α1, α2 do less.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
477-482
DOI
10.4028/www.scientific.net/KEM.340-341.477
Citation
M. B. Li, J. Cao, S. Q. Zheng, "Fracture Properties of Softwood under Mode I Loading Perpendicular to the Grain", Key Engineering Materials, Vols. 340-341, pp. 477-482, 2007
Online since
June 2007
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Price
$32.00
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