Computer simulation of crack propagation

Journal Article · Mon Apr 07 04:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.44.940· OSTI ID:5315202

Paskin, A; Gohar, A; Dienes, G J

Computer simulations of crack properties were performed on a two-dimensional triangular lattice with a Lennard-Jones interatomic interaction. The use of a long-range potential and an unconstrained sample revealed novel features compared to earlier simulations. The Griffith energy treatment for fracture was found wanting. This system is brittle at low stresses in agreement with the Rice-Thomson criterion and shows dislocation formation at elevated stresses.

• Research Organization: Queens College of the City University of New York, Flushing, New York 11367
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5315202
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 44:14; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CONFIGURATION
CRACKS
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DISLOCATIONS
ELASTICITY
ENERGY
FRACTURE PROPERTIES
LENNARD-JONES POTENTIAL
LINE DEFECTS
MECHANICAL PROPERTIES
POTENTIAL ENERGY
SIMULATION
STRESSES
TRIANGULAR CONFIGURATION
TWO-DIMENSIONAL CALCULATIONS
VELOCITY