Title of article :
Percolation mechanism of failure of a planar assembly of interlocked osteomorphic elements
Author/Authors :
Molotnikov، نويسنده , , A. and Estrin، نويسنده , , Y. and Dyskin، نويسنده , , A.V. and Pasternak، نويسنده , , E. and Kanel-Belov، نويسنده , , A.J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
11
From page :
1222
To page :
1232
Abstract :
We consider the failure behaviour of a plate assembled from interlocking elements (the so-called osteomorphic blocks) held together by virtue of their geometry and spatial arrangement. As overall failure by crack propagation across the assembly is inhibited by its segmented nature, failure of elements in a random fashion is considered in terms of percolation theory. Overall failure is associated with damage reaching a percolation limit, which is calculated using computer experiments. A new feature of the assembly of interlocked osteomorphic elements as compared to a classical problem of percolation on a square 2-D lattice is the occurrence of avalanches of failures. It is shown that this leads to a significant decrease of the percolation limit, which in our case amounts to about 25% of failed elements. It is further shown that usual scaling laws found in classical percolation theory still apply for the case considered.
Keywords :
Topological interlocking , Cluster , avalanche , critical exponent , fracture resistance
Journal title :
ENGINEERING FRACTURE MECHANICS
Serial Year :
2007
Journal title :
ENGINEERING FRACTURE MECHANICS
Record number :
2341735
Link To Document :
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