Mechanics of granular media
Particle-resolved and multifidelity modeling of granular assemblies whose particles deform, break and rearrange under load.
Projects
These projects address different physical systems, but they share a question: what physics and what resolution must a computational model retain to support reliable analysis and design? Ideas in multiscale modeling, interfaces, optimization and error control move from one problem to another.
Particle-resolved and multifidelity modeling of granular assemblies whose particles deform, break and rearrange under load.
Choosing where to put material and where to put magnetization, at the same time, so a soft structure moves the way a design problem asks it to.
Residual-based estimation and correction of neural-operator error in forward simulation, Bayesian inference and topology optimization.
Magnetic soft composites are designed as if the particle–matrix interface were perfect. This project asks what changes when it is not, and whether that is what sets how long the material keeps working.
Effective properties for a composite have to come from somewhere. This project derives them from resolved micro-scale fracture simulations, after first settling which description of the interface to trust.
A pull-off force is one number describing at least four different mechanisms. Separating them is what lets a measurement support a design rule that transfers, instead of one fitted curve.
Well-posedness, kinetic relations and convergence rates for models of dynamic fracture, and the crack behavior they predict around voids, inclusions and interfaces.
Parallel and asynchronous solvers, load balancing and distributed data structures for large mechanics and transport problems.
A mixed-dimensional model of tumor growth in which an evolving one-dimensional vascular network carries blood and nutrients through three-dimensional tissue.