TY  - JOUR
AU  - Mastilović, Sreten
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1589
AB  - An idealized brittle microscale system is subjected to dynamic uniaxial tension in the medium-tohigh
strain-rate range (˙ε ∈ [100 s−1, 1×107 s−1]) to investigate its mechanical response under constrained
spatial and temporal scales. The setup of dynamic simulations is designed to ensure practically identical inplane
stress conditions on a system of continuum particles forming a two-dimensional, geometrically and
structurally disordered, lattice. The rate sensitivity of size effects is observed as well as the ordering effect
of kinetic energy. A simple phenomenological expression is developed to account for the tensile strength
sensitivity of the small-sized brittle systems to the strain-rate and extrinsic size effects, which may serve as a
guideline for formulation of constitutive relations in the MEMS design. The representative sample is defined
as a square lattice size for which the tensile strength becomes rate-insensitive and an expression is proposed
to model its evolution between two asymptotes corresponding to the limiting loading rates. The dynamics of
damage accumulation is analyzed as a function of sample size and loading rate.
PB  - Springer Nature
T2  - Continuum Mechanics and Thermodynamics
T1  - On strain-rate sensitivity and size effect of brittle solids: transition from cooperative phenomena to microcrack nucleation
EP  - 501
IS  - 2-4
SP  - 489
VL  - 25
DO  - 10.1007/s00161-012-0279-0
ER  - 

@article{
author = "Mastilović, Sreten",
year = "2013",
abstract = "An idealized brittle microscale system is subjected to dynamic uniaxial tension in the medium-tohigh
strain-rate range (˙ε ∈ [100 s−1, 1×107 s−1]) to investigate its mechanical response under constrained
spatial and temporal scales. The setup of dynamic simulations is designed to ensure practically identical inplane
stress conditions on a system of continuum particles forming a two-dimensional, geometrically and
structurally disordered, lattice. The rate sensitivity of size effects is observed as well as the ordering effect
of kinetic energy. A simple phenomenological expression is developed to account for the tensile strength
sensitivity of the small-sized brittle systems to the strain-rate and extrinsic size effects, which may serve as a
guideline for formulation of constitutive relations in the MEMS design. The representative sample is defined
as a square lattice size for which the tensile strength becomes rate-insensitive and an expression is proposed
to model its evolution between two asymptotes corresponding to the limiting loading rates. The dynamics of
damage accumulation is analyzed as a function of sample size and loading rate.",
publisher = "Springer Nature",
journal = "Continuum Mechanics and Thermodynamics",
title = "On strain-rate sensitivity and size effect of brittle solids: transition from cooperative phenomena to microcrack nucleation",
pages = "501-489",
number = "2-4",
volume = "25",
doi = "10.1007/s00161-012-0279-0"
}

Mastilović, S.. (2013). On strain-rate sensitivity and size effect of brittle solids: transition from cooperative phenomena to microcrack nucleation. in Continuum Mechanics and Thermodynamics
Springer Nature., 25(2-4), 489-501.
https://doi.org/10.1007/s00161-012-0279-0

Mastilović S. On strain-rate sensitivity and size effect of brittle solids: transition from cooperative phenomena to microcrack nucleation. in Continuum Mechanics and Thermodynamics. 2013;25(2-4):489-501.
doi:10.1007/s00161-012-0279-0 .

Mastilović, Sreten, "On strain-rate sensitivity and size effect of brittle solids: transition from cooperative phenomena to microcrack nucleation" in Continuum Mechanics and Thermodynamics, 25, no. 2-4 (2013):489-501,
https://doi.org/10.1007/s00161-012-0279-0 . .