Roughening of a propagating planar crack front

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Roughening of a propagating planar crack front. / Åström, J.A.; Alava, M.J.; Timonen, J.

In: Physical Review E, Vol. 62, No. 2, 2000, p. 2878-2881.

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Åström, J.A. ; Alava, M.J. ; Timonen, J. / Roughening of a propagating planar crack front. In: Physical Review E. 2000 ; Vol. 62, No. 2. pp. 2878-2881.

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@article{2d1dfdae553a40e69442572efdfecab1,
title = "Roughening of a propagating planar crack front",
abstract = "A numerical model of the front of a planar crack propagating between two connected elastic plates is investigated. The plates are modeled as square lattices of elastic beams. The plates are connected by similar but breakable beams with a randomly varying stiffness. The crack is driven by pulling both plates at one end in Mode I at a constant rate. We find ζ=1/3,z=4/3, and β=1/4 for the roughness, dynamical, and growth exponents, respectively, that describe the front behavior. This is similar to continuum limit analyses based on a perturbative stress-intensity treatment of the front [H. Gao and J. R. Rice, J. Appl. Mech. 56, 828 (1989)]. We discuss the differences to recent experiments.",
author = "J.A. {\AA}str{\"o}m and M.J. Alava and J. Timonen",
year = "2000",
doi = "10.1103/PhysRevE.62.2878",
language = "English",
volume = "62",
pages = "2878--2881",
journal = "Physical Review E",
issn = "2470-0045",
publisher = "American Physical Society",
number = "2",

}

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TY - JOUR

T1 - Roughening of a propagating planar crack front

AU - Åström, J.A.

AU - Alava, M.J.

AU - Timonen, J.

PY - 2000

Y1 - 2000

N2 - A numerical model of the front of a planar crack propagating between two connected elastic plates is investigated. The plates are modeled as square lattices of elastic beams. The plates are connected by similar but breakable beams with a randomly varying stiffness. The crack is driven by pulling both plates at one end in Mode I at a constant rate. We find ζ=1/3,z=4/3, and β=1/4 for the roughness, dynamical, and growth exponents, respectively, that describe the front behavior. This is similar to continuum limit analyses based on a perturbative stress-intensity treatment of the front [H. Gao and J. R. Rice, J. Appl. Mech. 56, 828 (1989)]. We discuss the differences to recent experiments.

AB - A numerical model of the front of a planar crack propagating between two connected elastic plates is investigated. The plates are modeled as square lattices of elastic beams. The plates are connected by similar but breakable beams with a randomly varying stiffness. The crack is driven by pulling both plates at one end in Mode I at a constant rate. We find ζ=1/3,z=4/3, and β=1/4 for the roughness, dynamical, and growth exponents, respectively, that describe the front behavior. This is similar to continuum limit analyses based on a perturbative stress-intensity treatment of the front [H. Gao and J. R. Rice, J. Appl. Mech. 56, 828 (1989)]. We discuss the differences to recent experiments.

U2 - 10.1103/PhysRevE.62.2878

DO - 10.1103/PhysRevE.62.2878

M3 - Article

VL - 62

SP - 2878

EP - 2881

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 2

ER -

ID: 3473744