124 citations · 379 across the 7 of their papers we have counts for
5 papers · 1 filter
Thermal Effects in the Shear-Transformation-Zone Theory of Amorphous Plasticity: Comparisons to Metallic Glass Data
M. L. Falk, J. S. Langer, L. Pechenik
We extend our earlier shear-transformation-zone (STZ) theory of amorphous plasticity to include the effects of thermally assisted molecular rearrangements. This version of our theo…
Dynamics of Shear-Transformation Zones in Amorphous Plasticity: Energetic Constraints in a Minimal Theory
J. S. Langer, L. Pechenik
We use energetic considerations to deduce the form of a previously uncertain coupling term in the shear-transformation-zone (STZ) theory of plastic deformation in amorphous solids.…
Dynamics of Large-Scale Plastic Deformation and the Necking Instability in Amorphous Solids
L. O. Eastgate, J. S. Langer, L. Pechenik
We use the shear transformation zone (STZ) theory of dynamic plasticity to study the necking instability in a two-dimensional strip of amorphous solid. Our Eulerian description of…
Steady-state mode III cracks in a viscoelastic lattice model
Leonid Pechenik, Herbert Levine, David A. Kessler
We extend the Slepyan solution of the problem of a steady-state crack in an infinite ideally brittle lattice model to include dissipation in the form of Kelvin viscosity. As a demo…
Steady-state mode I cracks in a viscoelastic triangular lattice
Leonid Pechenik, Herbert Levine, David A. Kessler
We continue our study of the exact solutions for steady-state cracks in ideally brittle viscoelastic lattice models by focusing on mode I in a triangular system. The issues we addr…