A5022374672- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Additive Manufacturing and 3D Printing Technologies
- Additive Manufacturing Materials and Processes
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Bone Tissue Engineering Materials
- Nuclear Materials and Properties
- Fatigue and fracture mechanics
- biodegradable polymer synthesis and properties
- Parasite Biology and Host Interactions
- Crafts, Textile, and Design
- Engineering Education and Technology
- Microstructure and Mechanical Properties of Steels
- Advanced Welding Techniques Analysis
- Nanocomposite Films for Food Packaging
- Higher Education and Employability
- Surfactants and Colloidal Systems
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- Marine and fisheries research
- High Temperature Alloys and Creep
- Crustacean biology and ecology
- Mechanical stress and fatigue analysis
- High-Velocity Impact and Material Behavior
University of Michigan
2019-2024
Los Alamos National Laboratory
2024
University of Tennessee at Knoxville
2016-2022
University of Washington
2021
National Transportation Research Center
2017-2019
Oak Ridge National Laboratory
2017-2019
The effects of hydration on the solvation, diffusivity, solubility, and permeability oxygen molecules in sustainable, biodegradable chitosan/chitin food packaging films were studied via molecular dynamics confined random walk simulations. With increasing hydration, membrane has a more homogeneous water distribution with polymer chains being fully solvated. diffusivity increased by factor 4 for an order magnitude humidity. To calculate Henry's constant solubility membranes changing excess...
Abstract Fatigue short‐cracks in Mg alloys display complex growth behavior due to high plastic anisotropy and crack path dependence on local microstructural features. In this study, the three‐dimensional crystallography of short‐crack paths alloy WE43 was characterized by mapping near‐field high‐energy X‐ray diffraction microscopy (HEDM) reconstructed grain maps high‐resolution CT reconstructions fracture surfaces initiation regions six ultrasonic fatigue specimens. Crack–grain–boundary...
Abstract The evolution of deformation in a Mg-Nd alloy has been investigated using 3D HEDM and crystal plasticity simulation the PRISMS-Plasticity CPFE Code. Using simplified representative volume element (RVE), average stress-strain response is well predicted by simulation. distribution resolved shear stresses corresponding to basal mode for all grains obtained both CPFE. results show that substantially narrower distributions, thus indicating need improved digital representation RVE. these...
Abstract Microstructurally small fatigue‐crack growth in polycrystalline materials is highly three‐dimensional due to sensitivity local microstructural features (e.g., grains). One requirement for modeling microstructurally sensitive crack propagation establishing the criteria that govern evolution, including deflection. Here, a high‐fidelity finite‐element framework used assess performance and validity of various crack‐growth criteria, slip‐based metrics fatigue‐indicator parameters), as...
The abundances of free-living species have changed dramatically in recent decades, but little is known about change the abundance parasitic species. We investigated whether populations several parasites shifted over time two shore crab hosts, Hemigrapsus oregonensis and nudus, by comparing prevalence three parasite taxa a historical dataset (1969–1970) to contemporary (2018–2020) for hosts collected from 11 intertidal sites located Oregon, USA, British Columbia, Canada. Our data suggest that...
At two-thirds the weight of aluminum, magnesium alloys have potential to significantly reduce fuel consumption transportation vehicles. These advancements depend on our ability optimize desirable versus undesirable effects deformation twins: three dimensional (3D) microstructural domains that form under mechanical stresses. Previously only characterized using surface or thin-film measurements, here, we present first 3D in-situ characterization twinning inside an embedded grain over...
Abstract The COVID-19 pandemic has greatly impacted educators all over the world and a major area of disruption been ability for higher education institutions to provide meaningful STEM activities broader community. In this work, methods adapt materials science outreach meet needs students, teachers, community at large during are explored outcomes recommendations provided. This is accomplished through focus on three efforts: fully-virtual classroom visits, remote visitation in-person...
Additive manufacturing is continuing to grow with a large potential for replacement of traditionally manufactured parts, part repair, and prototype development due complexity allowable geometry low raw material use. However mechanical properties parts processed through additive typically suffer in comparison. The goal this study was develop an improved sustainable feedstock reinforcement polylactic acid nanoparticles such as graphene multiwalled carbon nanotubes. Composites loadings 0.1,...