A5012491168- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Vibration and Dynamic Analysis
- Corneal surgery and disorders
- Glaucoma and retinal disorders
- Dynamics and Control of Mechanical Systems
- Natural Fiber Reinforced Composites
- Composite Structure Analysis and Optimization
- Photoacoustic and Ultrasonic Imaging
- Particle Detector Development and Performance
- Muon and positron interactions and applications
- Structural Analysis and Optimization
- Magnetic Bearings and Levitation Dynamics
- Tribology and Wear Analysis
- Cerebral Venous Sinus Thrombosis
- Polymer Foaming and Composites
- Mechanical stress and fatigue analysis
- Polymer Nanocomposites and Properties
- Advanced machining processes and optimization
- Corneal Surgery and Treatments
- Polymer crystallization and properties
- Nuclear Physics and Applications
- Mechanical Behavior of Composites
- Material Properties and Applications
University of Michigan
2011-2024
University of Michigan–Dearborn
2012-2024
Michigan United
2018-2024
Emory University
2014
Yale University
2010-2012
European Organization for Nuclear Research
1984-1994
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
1984
University of Bologna
1982-1983
The high strain-rate constitutive behavior of polymer composites with various natural fibers is studied. Hemp, hemp/glass hybrid, cellulose, and wheat straw-reinforced polymeric have been manufactured, a split-Hopkinson pressure bar apparatus has designed to measure the dynamic stress–strain response materials. Using apparatus, compressive curves obtained that reveal materials’ characteristics at strain rates between 600 2400 strain/s. Primary findings indicate in thermoset dissipate energy...
The thermo-mechanical analysis of an ultrasonic spot welding process was performed using developed finite element models. Temperature–time histories aluminium specimens during were successfully obtained from the and validated by physical tests. It shown that effect frictional heating on plastic deformation significant should be included in order to achieve good correlation with phenomenon.
The dynamic stability of thin, clamped, composite circular cylindrical shells is studied for combined axial and torsional loading. Each load taken to be har monically varying; the frequencies two loads differ, in general. For case which are commensurate, applied function periodic. equa tions motion shell reduced a system Hill equations by means Fourier series expansions. Instability regions principal combination parametric resonance determined use monodromy matrix. Numerical results...
Abstract The effects of loading rate on bio‐, nano‐, and microcellular composite systems have been studied. Fiber–resin manufactured dynamically tested at various speeds to assess their strain‐rate dependencies (rate hardening) energy‐dissipation characteristics compared conventional materials. following fabricated studied: polypropylene/sisal fiber biocomposite, hemp/vinyl ester thermoplastic olefin/nanoclay composite, composite. It has determined that the biocomposite studied possess...
The free and forced response of spinning, viscoelastic, Rayleigh shafts is studied. Viscoelasticity included using the three parameter solid model. closed form polynomial frequency equation integral expressions for to a general forcing function are derived. A convenient decay described. Results given natural frequencies rates as functions shaft rotation speed, stiffness, viscosity. It found that materials possible which have desirable damping characteristics. case discussed in simultaneous...