2.6k citations · 2.7k across the 6 of their papers we have counts for
6 papers
A comparison of finite element and atomistic modelling of fracture
Valerie R Coffman, James P. Sethna, Gerd Heber +4
Are the cohesive laws of interfaces sufficient for modelling fracture in polycrystals using the cohesive zone model? We examine this question by comparing a fully atomistic simulat…
Grain boundary energies and cohesive strength as a function of geometry
Valerie R. Coffman, James P. Sethna
Cohesive laws are stress-strain curves used in finite element calculations to describe the debonding of interfaces such as grain boundaries. It would be convenient to describe grai…
Challenges in continuum modeling of intergranular fracture
Valerie R. Coffman, James P. Sethna, Gerd Heber +4
Intergranular fracture in polycrystals is often simulated by finite elements coupled to a cohesive-zone model for the interfaces, requiring cohesive laws for grain boundaries as a…
Digital Material: a flexible atomistic simulation code
Nicholas Bailey, Thierry Cretegny, James P. Sethna +5
The complexities of today's materials simulations demand computer codes which are both powerful and highly flexible. A researcher should be able to readily choose different geometr…
Scaling in Plasticity-Induced Cell-Boundary Microstructure: Fragmentation and Rotational Diffusion
James P. Sethna, Valerie R. Coffman, Eugene Demler
We develop a simple computational model for cell boundary evolution in plastic deformation. We study the cell boundary size distribution and cell boundary misorientation distributi…
Distributed Entanglement
Valerie Coffman, Joydip Kundu, William K. Wootters
Consider three qubits A, B, and C which may be entangled with each other. We show that there is a trade-off between A's entanglement with B and its entanglement with C. This relati…