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Abstract The split of Brazilian disk has attracted serious concern of researchers from the fields of elasticity
and rock mechanics and engineering. In this paper a modified two-parameter micro-elastic prototyped brittle
peridynamic constitutive model was proposed considering the relative rotation of the interactive bonds of
material points based on the recently developed nonlocal peridynamic theory, and the mechanical behavior and
fracture characteristics of rock-like materials were also taken into account. By introducing a series of physical
algorithms including local damping, force boundary, equilibrium and dynamic relaxation of particle system,
the failure process of a pre-notched rock-like Brazilian disk with different central cracks were studied with the
proposed peridynamic simulation method. The crack propagation paths and failure mode agree well with
experimental observation, which provides a promising alternative for numerical simulation of crack growth
and fracture.
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Received: 09 March 2017
Published: 28 December 2017
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2017, Vol. 38 
