[HTML][HTML] Evaluation of computational homogenization methods for the prediction of mechanical properties of additively manufactured metal parts

NG March, DR Gunasegaram, AB Murphy - Additive Manufacturing, 2023 - Elsevier
It is well known that the strongly location-dependent microstructures observed in metal parts
made using additive manufacturing (AM) processes differ from those found in components …

An improved M-SPEM for modeling complex hydroelastic fluid-structure interaction problems

Z Zhang, C Shu, Y Liu, W Liu, MSU Khalid - Journal of Computational …, 2023 - Elsevier
Hydroelastic fluid-structure interaction (FSI) problems usually involve nonlinear free surface
flows, large structure deformations and changing interfaces, which present great challenges …

Diffuse interface method for solid composite propellant ignition and regression

M Meier, E Schmidt, P Martinez, JM Quinlan… - Combustion and …, 2024 - Elsevier
Abstract Solid Composite Propellants (SCPs) are extensively used in the field of propulsion
for their chemical and mechanical stability in long-term storage, and for having simple …

Dynamic and adaptive mesh-based graph neural network framework for simulating displacement and crack fields in phase field models

R Perera, V Agrawal - Mechanics of Materials, 2023 - Elsevier
Fracture is one of the main causes of failure in engineering structures. Phase field methods
coupled with adaptive mesh refinement (AMR) techniques have been widely used to model …

Block structured adaptive mesh refinement and strong form elasticity approach to phase field fracture with applications to delamination, crack branching and crack …

V Agrawal, B Runnels - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
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 …

Experimental and numerical investigation into mechanical degradation of polymers

ADN Celestine, V Agrawal, B Runnels - Composites Part B: Engineering, 2020 - Elsevier
Polymers have myriad uses in the modern world, but their advantageous properties can be
compromised by degradation induced via moisture absorption. This work presents a novel …

A diffuse interface method for solid-phase modeling of regression behavior in solid composite propellants

B Kanagarajan, JM Quinlan, B Runnels - Combustion and Flame, 2022 - Elsevier
Solid composite propellants (SCPs) are ubiquitous in the field of propulsion. In order to
design and control solid rocket motors, it is critical to understand and accurately predict SCP …

Multiphase field modeling of grain boundary migration mediated by emergent disconnections

M Gokuli, B Runnels - Acta Materialia, 2021 - Elsevier
Abstract Knowledge about grain boundary migration is a prerequisite for understanding and
ultimately modulating the properties of polycrystalline materials. Evidence from experiments …

Phase field disconnections: A continuum method for disconnection-mediated grain boundary motion

B Runnels, V Agrawal - Scripta Materialia, 2020 - Elsevier
Grain boundary (GB) migration is a key mechanism underlying such phenomena as
recrystallization, solidification, and severe plastic deformation. Mounting evidence suggests …

Robust, strong form mechanics on an adaptive structured grid: efficiently solving variable-geometry near-singular problems with diffuse interfaces

V Agrawal, B Runnels - Computational Mechanics, 2023 - Springer
Many solid mechanics problems on complex geometries are conventionally solved using
discrete boundary methods. However, such an approach can be cumbersome for problems …