Discrete modeling of elastic heterogeneous media

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU152127" target="_blank" >RIV/00216305:26110/24:PU152127 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0093641324000375" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0093641324000375</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mechrescom.2024.104277" target="_blank" >10.1016/j.mechrescom.2024.104277</a>

Result language

angličtina

Original language name

Discrete modeling of elastic heterogeneous media

Original language description

Discrete models provide advantages in simulating fracture in quasi -brittle materials due, in part, to their simplicity in representing cracking and other forms of displacement discontinuity. However, the stress analyses that form the basis for fracture simulation are complicated by difficulties in modeling the Poisson effect and other aspects of elastic behavior. The capabilities of Voronoi-cell lattice models, which are a form of particle -based lattice model, for elastic stress analysis are evaluated. It is found that the conventional means for representing the Poisson effect in particle -based lattice models result in spatially correlated stress oscillations that, at first glance, mimic the effects of material heterogeneity. The correlation length is dependent on discretization size. Alternatively, material heterogeneity can be introduced into elastically uniform lattice models via random assignments of material properties, independent of mesh size and geometry.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/GF22-06684K" target="_blank" >GF22-06684K: Energy dissipation-based approach to stochastic fatigue of concrete considering interacting time and temperature effects</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MECHANICS RESEARCH COMMUNICATIONS

ISSN

0093-6413

e-ISSN

—

Volume of the periodical

137

Issue of the periodical within the volume

104277

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1-8

UT code for WoS article

001232395800001

EID of the result in the Scopus database

2-s2.0-85190747251