Category: Events and Seminars

 

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Prof. Michael Yu Wang (HKUST): Material and Structure Design and Optimization in the Era of Additive Manufacturing
Published: May 22, 2019

Abstract: Additive manufacturing (AM) today affords complete freedom in controlling geometric details and material composition in three-dimensional fabrication. They provide new routes for manufacturing parts with structural properties in high-strength, light-weight, and exceptional performance. To further the adoption of the AM technologies, there is a need for “Design for Additive Manufacturing” methodologies and computer tools […]

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Prof. Ronald K. Hanson (Stanford): PW Distinguished Lecture: New Strategies for Laser Diagnostics and Shock Tube Imaging
Published: April 12, 2019

Abstract: This presentation will introduce two new ideas for laser diagnostics applicable to combustion and propulsion and two new ideas for high-speed imaging of combustion phenomena in a shock tube.  The first laser diagnostic to be discussed is Spectrally-Resolved Fluorescence, in which a narrow-linewidth wavelength-tunable laser source is rapidly scanned over one or more absorption […]

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Dr. Ruhong Zhou (IBM): Large Scale Molecular Simulation of Nanoparticle-Biomolecule Interactions
Published: April 8, 2019

Abstract: ​Nanoscale particles have become promising materials in various biomedical applications, however, in order to stimulate and facilitate these applications, there is an urgent need for a better understanding of their biological effects and underlying physics. In this talk, I will discuss some of our recent works, mostly molecular modelling, at bio-nano interface and their […]

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Integration of Materials Design, Additive Manufacturing and Machine Learning for Personalized Heart Surgery Planning and Optimization
Published: April 2, 2019

Abstract: ​This seminar presents a research study for personalized heart surgery planning and optimization with integration of advanced materials design, multi-material 3D printing, and machine learning techniques. In this study, a meta-material design approach was first developed to create a mechanical structure that can mimic mechanical behavior of human aortic valves. The tissue-mimicking heart valves […]

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A Tea Light Candle and the Global Waste Problem
Published: March 22, 2019

Abstract: In 2012, the World Bank estimated that each person living on planet earth produces approximately 1.2 kg waste per day amounting to 1.2 billion tons per year. By 2025 this number is expected to reach a staggering 2.2 billion tons, which raises the fundamental question: What is and what happens to waste? Most of […]

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Credible Computational Solid Mechanics for Critical Decision Making in Engineering
Published: February 25, 2019

Abstract: Advanced computational modeling, high performance computing technology, and extensive knowledge of simulation form a strong and unique foundation of research, development and engineering at Sandia National Laboratories that enable the Lab to meet its commitment of ensuring the national security of the United States.  Computational models are utilized extensively to predict the complex behavior […]

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Modeling and Control Additive Manufacturing Processes for Ceramics and Glass
Published: February 20, 2019

Abstract: Additive Manufacturing (AM), which has been referred to as the 4th revolution in manufacturing, is a truly disruptive class of manufacturing. In AM, location-specific mechanical properties can be tailored by grading materials and microstructure, complex geometries that cannot be manufactured with traditional processes can be fabricated, and cost-effective part repair and low volume manufacturing […]

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Reversible Solid Oxide Cells and Protonic Ceramic Fuel Cell Technologies as Flexible, Dispatchable Energy Resources
Published: February 7, 2019

Abstract: ​L​ow-cost, high efficiency, electrical energy storage (EES) is needed for the future electric grid which will include more variable energy resources, such as wind and solar. Movement towards predominately low-carbon energy systems requires renewable resources and could be accelerated by integration of high temperature electrochemical technologies. Currently, substantial penetration of wind and solar resources […]

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Physical biology at the semiconductor-enabled biointerfaces
Published: January 18, 2019

Abstract: ​Recent studies have demonstrated that in addition to biochemical and genetic interactions, cellular systems also respond to biophysical cues, such as electrical, thermal, and mechanical signals. However, we only have limited tools that can introduce localized physical stimuli and/or sense cellular responses with high spatiotemporal resolution. Inorganic semiconductors display a spectrum of physical properties […]

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Recent Progress in Black-Box Function Optimization for Industry Problems
Published: January 17, 2019

Abstract: One of the most common and important problems in the engineering industry is, arguably, to optimize a black-box expensive-to-evaluate function given a strict budget. The function can represent a real-world experiment or a costly simulation code. Specifically, given a set of potential power plant layouts, how do we find the best layout defined against […]

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Layer-to-Layer Control in Laser Metal Direct Energy Deposition Additive Manufacturing
Published: November 27, 2018

Abstract: ​Additive manufacturing (AM), or 3D printing, is beginning to deliver on its long-promised potential to transform industrial production.  Already, tooling and molds are making regular use of AM’s rapid CAD-to-part flexibility to deliver in days what previously took months.  In addition, AM facilitates much greater geometric complexity, which increases the value proposition for AM […]

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Mechanics under the Fold: How Origami Creates Sophisticated Mechanical Properties
Published: November 6, 2018

Abstract: ​Origami, the ancient Japanese art of paper folding, is not only an inspiring technique to create sophisticated shapes, but also a surprisingly powerful method to induce nonlinear mechanical properties. Over the last decade, advances in crease design, mechanics modeling, and scalable fabrication have fostered the rapid emergence of architected origami structure and material systems. […]

Categories: Events and Seminars, Past Seminars, Uncategorized

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A Multiscale Moving Contact Line Theory and Simulation of Droplet Spreading and Cell Durotaxi
Published: October 24, 2018

Abstract: In this talk, we present a novel multiscale moving contact line (MMCL) theory, which offers a powerful numerical simulation method for modeling and analysis of dynamic wetting, liquid droplet spreading on solid substrates, and various capillary motion phenomena. In the proposed multiscale moving contact line theory, we couple molecular scale adhesive interaction i.e. the […]

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Predicting Fuel Properties of Potential Biofuels Using an Improved Artificial Neural Network Based on Molecular Structure
Published: October 23, 2018

Abstract: The next generation of alternative fuels is being investigated through advanced chemical and biological production techniques for the purpose of finding suitable replacements to diesel and gasoline while lowering production costs and increasing process yields. Chemical conversion of biomass to fuels provides a plethora of pathways with a variety of fuel molecules, both novel […]

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Active Thermosyphons to Condense Water from Power Plant Flue Gas, and an Overview of Energy Research at Stony Brook University
Published: October 5, 2018

The talk will focus on two themes.  The first will be an overview of our current ARPA-E project to condense water from flue gas for dry-cooled power plants power plants. Water use by power plants is an increasing concern across the U.S., and is particularly problematic in arid regions, such as the southwest.  In this […]

Categories: Events and Seminars, Past Seminars, Uncategorized

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Molecular simulations of mechanical properties for polymer materials
Published: October 5, 2018

The U.S. Army Research Laboratory (ARL) was activated 25 years ago with a mission to discover, innovate and transition science and technology to ensure dominant strategic land power. One of key research strategies at ARL is a development of superior protection systems for individual warfigter and vehicles. The protective systems often use polymers due to […]

Categories: Events and Seminars, Past Seminars, Uncategorized

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Isogeometric Methods for Solids, Structures, and Fluid-Structure Interaction: From Early Results to Recent Developments
Published: October 1, 2018

Abstract: This presentation is focused on Isogeometric Analysis (IGA) with applications to solids and structures, starting with early developments and results, and transitioning to more recent work. Novel IGA-based thin-shell formulations are discussed, and applications to progressive damage modeling in composite laminates due to low-velocity impact and their residual-strength prediction are shown. Fluid–structure interaction (FSI) […]

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Hydrocarbon Combustion Reaction Models from Both Ends-The Foundational Fuels and JP10
Published: September 27, 2018

Due to the hierarchical nature of high-temperature hydrocarbon oxidation, modeling the combustion chemistry of higher hydrocarbon fuels typically requires a fuel-specific reaction model that describes the fragmentation of the fuel into small species, and a foundational fuel chemistry model that describes the oxidation of these species. Shared by the combustion of large hydrocarbons, the foundational […]

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Metastructures For Wave And Vibration Control: Internal Resonances, Edge States and Quasi-periodicity
Published: September 20, 2018

Beyond the mere notion of a material, metastructures draw their unique characteristics from their finite size and the existence of interfaces. The resulting structural assemblies feature unprecedented performance in terms of stress wave mitigation, wave guiding, acoustic absorption, and vibration isolation. The talk illustrates the frequency-selective properties of periodic metastructures, which result in their ability […]

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Far-Field and Near-Field Thermal Radiation with Nanostructures and 2D Materials
Published: April 18, 2018

Abstract: Radiative heat transfer between closely spaced objects can be greatly enhanced at nanoscale separation. Furthermore, the interaction of electromagnetic waves with micro/nanostructured materials can potentially modify their far-field radiative properties. Recent advances in graphene and other two-dimensional (2D) materials offer enormous potential to transform current microelectronic, optoelectronic, photonic devices, as well as energy systems. […]

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