Fractures in heterogeneous two-dimensional systems
Year: 2001
Authors: Politi A., Zei M.
Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy; Istituto Nazionale di Fisica della Materia, Unità di Firenze, Firenze, Italy; Dipartimento di Meccanica e Tecnologie Industriali, Università di Firenze, Firenze, Italy;
Laboratoire de Physique, Ecole Normale Superiéure de Lyon, Lyon, France
Abstract: A two-dimensional triangular lattice with bond disorder is used as a testing ground for fracture behavior in heterogeneous materials in strain-controlled conditions. Simulations are performed with two interaction potentials (harmonic and Lennard-Jones types) and different breaking thresholds. We study the strain range where the fracture progressively develops from the first to the last breakdown. Scaling properties with the lattice size are investigated: no qualitative difference is found between the two interaction potentials. Clustering properties of the broken bonds are also studied by grouping them into disjoint sets of connected bonds. Finally, the role of kinetic energy is analyzed by comparing overdamped with dissipationless dynamics.
Journal/Review: PHYSICAL REVIEW E
Volume: 63 (5) Pages from: 056107-1 to: 056107-9
KeyWords: BREAKDOWN; DYNAMICS; DISORDER; RUPTURE; DOI: 10.1103/PhysRevE.63.056107Citations: 4data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-04-28References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here