36 citations · 104 across the 7 of their papers we have counts for
7 papers
Inverse method for determining general molecular weight distribution from polymer rheology
Nihal Pushkar, Xin C. Yee, Jena McCollum +1
Determination of polymer molecular weight distribution (MWD) from rheological measurements is desirable due to the ease and low cost of rheometry compared to other methods such as…
The Alamo multiphysics solver for phase field simulations with strong-form mechanics and block structured adaptive mesh refinement
Brandon Runnels, Vinamra Agrawal, Maycon Meier
Alamo is a high-performance scientific code that uses block-structured adaptive mesh refinement to solve such problems as: the ignition and burn of solid rocket propellant, plastic…
Robust, strong form mechanics on an adaptive structured grid: efficiently solving variable-geometry near-singular problems with diffuse interfaces
Vinamra Agrawal, Brandon Runnels
Many solid mechanics problems on complex geometries are conventionally solved using discrete boundary methods. However, such an approach can be cumbersome for problems involving ev…
Self-similar diffuse boundary method for phase boundary driven flow
Emma M. Schmidt, J. Matt Quinlan, Brandon Runnels
Interactions between an evolving solid and inviscid flow can result in substantial computational complexity, particularly in circumstances involving varied boundary conditions betw…
Block structured adaptive mesh refinement and strong form elasticity approach to phase field fracture with applications to delamination, crack branching and crack deflection
Vinamra Agrawal, Brandon Runnels
Fracture is a ubiquitous phenomenon in most composite engineering structures, and is often the responsible mechanism for catastrophic failure. Over the past several decades, many a…
Optimal transportation of grain boundaries: A forward model for predicting migration mechanisms
Ian Chesser, Elizabeth Holm, Brandon Runnels
It has been hypothesized that the most likely atomic rearrangement mechanism during grain boundary (GB) migration is the one that minimizes the lengths of atomic displacements in t…
Massively parallel finite difference elasticity using block-structured adaptive mesh refinement with a geometric multigrid solver
Brandon Runnels, Vinamra Agrawal, Weiqun Zhang +1
Computationally solving the equations of elasticity is a key component in many materials science and mechanics simulations. Phenomena such as deformation-induced microstructure evo…