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Mechanics of Redox Active Materials Abstract: This talk focuses on the interplay of mechanics with chemical reactions across multiple scales in redox active materials. I will use battery materials to introduce how electrochemistry induces deformation, stresses, and mechanical damage, and how mechanical stresses regulate charge transfer, mass diffusion, capacity, and voltage. I will introduce the customized operando nanoindentation and its […] Categories: Past Seminars |
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High resolution nanoparticle size determination by vapor condensation and the verification of classical heterogeneous nucleation theory Abstract: The phenomenon of heterogeneous nucleation in the gas phase is briefly introduced, as well as a related instruments referred to as a condensation particle counter (CPCs). CPCs are widely used to detect single nanometer particles and molecular ions, by growing them into visible sizes. We review prior use of sheathed CPCs, where nanoparticles are […] Categories: Past Seminars |
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From Many-Body Quantum Systems to Classical Fluids: Quantum- Ready and Quantum-Inspired CFD Abstract: Within the past decade, significant progress has been made in using quantum computing (QC) for solving classical problems. In this talk, an overview is made of the ways by which QC has shown promise for fluid dynamics and combustion research. This is via both quantum-ready and quantum-inspired algorithms. The former deals with problems that […] Categories: Past Seminars |
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Functionality through multistability: from soft robots to deployable structures Abstract: Inflating a rubber balloon leads to a dramatic shape change: a property that is exploited in the design of soft robots and deployable structures. On the one hand, fluid-driven actuators capable of complex motion can power highly adaptive and inherently safe soft robots. On the other hand, inflation can be used to transform seemingly […] Categories: Past Seminars |
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Growth and morphogenesis of confined bodies Abstract: Natural phenomena, such as growth, instability, and failure, can be highly dependent upon activation of stochastic mechanisms at the microscale, such as the existence of microscopic imperfections, the action of molecular motors, and the diffusion of constituents. Yet, at the macroscale, astonishing order is often observed. In this talk, I will discuss our recent […] Categories: Past Seminars |
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Dynamics of Flow Past Shark-Inspired Textured Surfaces Abstract: Skin of fast swimming shark species such as Mako are packed with overlapping micro-scale denticles where each denticle is covered with 3-7 ribs. These textures allow sharks to swim faster than other animals in the ocean. Inspired by this capability, two-dimensional symmetric and periodic textures have been considered for the purpose of drag control […] Categories: Past Seminars |
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Dielectric elastomer artificial muscles – bridging the gap to applications Abstract: Soft robotics aims to develop technological tools to allow people to interact more closely with machines, in a range of settings, from manufacturing, to healthcare, and even our homes. Dielectric elastomer actuators (DEAs) are compliant capacitors which can directly convert an electrical input into mechanical work. DEAs hold the promise of muscle-like behavior, as […] Categories: Past Seminars |
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Additive Manufacturing – The New Revolution http://s.uconn.edu/meseminar05.13.22 Abstract: In this seminar, Changjie will give an overview of GE Research first, followed by discussion of additive manufacturing. On the additive manufacturing, he will cover additive designs, additive digital tools, additive process monitoring and control, additive supply chain, and additive applications. He welcomes any individual discussions after the seminar. Biographical Sketch: Changjie Sun […] Categories: Past Seminars |
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NSF EDSE: Forging New Directions for Design Research http://s.uconn.edu/meseminar05.06.22 Abstract: In this overview of the Engineering Design & Systems Engineering (EDSE) Program at the National Science Foundation, NSF Program Director Kathryn Jablokow will highlight core themes of the program and new opportunities relevant to the engineering design and systems design communities, along with a few key principles for successful proposal writing. In addition, […] Categories: Past Seminars |
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Translating Brain Computer Interfaces: are we reaching an inflection point towards wide spread patient use? http://s.uconn.edu/meseminar04.29.22 Abstract: Implantable Brain Computer Interfaces appear to be heading towards an inflection point: in the past decade the number and frequency of major technological advances and first in human demonstrations of new capabilities has started increasing significantly. The first generations of commercially available products appear to be imminent. They have the potential to become […] Categories: Past Seminars |
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Wave propagation in meta-structures: beyond conventional limitations http://s.uconn.edu/meseminar4.22.22 Abstract: Meta-structures are artificially engineered structures designed to exhibit properties not found in conventional materials. By careful design, one can obtain unprecedented control over various physical properties. Examples in mechanics includes structures having unique static and dynamic properties like negative Poisson’s ratio, zero shear modulus and non-reciprocal wave propagation. Waveguides transporting energy and information […] Categories: Past Seminars |
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Make Your Research Matter: Tips From the Editor-in-Chief http://s.uconn.edu/meseminar04.01.22 Abstract: Matter (https://www.cell.com/matter) is a new materials science journal from Cell Press (our first issue was July ‘19). Matter is the third offering in the physical sciences from Cell Press, after the successful launches of Chem (2016) and Joule (2017), and an expanding physical sciences portfolio. Our goal is to provide a high impact […] Categories: Past Seminars |
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Breaking Boundaries in Advanced Manufacturing Processes http://s.uconn.edu/meseminar4.8.22 Abstract: Overcoming endemic limitations of existing manufacturing processes can have long lasting socio-economic impacts. I will focus on three innovations that have such an impact. First, I will discuss our work on Intense Pulsed Light Sintering of nanoparticles. I will show how this process alleviates the scalability, damage, and device performance limitations that plague […] Categories: Past Seminars |
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Two-Phase Heat Transfer in Enhanced Microgaps http://s.uconn.edu/meseminar4.15.22 Abstract: Two-phase internal flows in microgaps with passage hydraulic diameters of 100 um – 1,000 um are of interest in three-dimensional heterogeneous electronics, transport electrification, and portable microsystems. To enhance heat transfer coefficients in these configurations, structured surfaces are often employed. Understanding of two-phase flow and thermal transport in such configurations continues to be […] Categories: Past Seminars |
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Tissue engineering with soft matter http://s.uconn.edu/meseminar3/11/22 Abstract: The extracellular matrix (ECM) guides cells through mechanical and soluble signals among others. We guide cell behaviors using these two aspects of ECM. Even the bone ECM is soft after de-mineralization. Thus, we are interested in soft polymeric materials. Many tissues in our body are elastic including blood vessels, our target tissue. We […] Categories: Past Seminars |
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On the stability and structure of turbulent premixed bluff-body stabilized flames at elevated pressure http://s.uconn.edu/meseminar2/25/22 Abstract: Energy conversion and propulsion systems operating with a lean, premixed mode of combustion are advantageous in terms of both emissions and economics. This is because fully premixing fuel and oxidizer prior to combustion can reduce harmful exhaust levels, while operating fuel lean ensures complete fuel consumption, providing superior fuel economy. In fact, it […] Categories: Past Seminars |
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The mechanical behaviors of bone across multiple length scales http://s.uconn.edu/meseminar1/28/22 Abstract: Bone is strong, tough yet lightweight, which can be attributed to its complex hierarchical structures across multiple length scales. The factors contributing to these superior properties are still not completely understood, especially its structure at the sub-micron- and nano-scales. The morphology and mechanical properties of bone are also affected by diseases and treatment. This […] Categories: Past Seminars |
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Deformable Multimodal Electronics for Biomedicine http://s.uconn.edu/meseminar1/21/22 Abstract: Recent advances in electronics enable powerful biomedical devices that have greatly reduced therapeutic risks by monitoring vital signals and providing means of treatment. Conventional electronics today form on the planar surfaces of brittle wafer substrates and are not compatible with complex body tissues. Soft and implantable devices can help us better understand the […] Categories: Past Seminars |
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Materials at Extremes Research Group http://s.uconn.edu/meseminar12/20/21 Abstract: Materials are being asked to perform at “extremes” with increased inlet pressures and temperatures in industrial and aero gas turbines, the rise of hypersonic flight, and new Generation IV fission and ITER Fusion reactor concepts. There is a need to develop advanced manufacturing techniques to fabricate extreme environment materials, components, and geometries not […] Categories: Past Seminars |
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Bioengineered Synthetic Hydrogels for Regenerative Medicine http://s.uconn.edu/meseminar12/10/21 Abstract: Hydrogels, highly hydrated cross-linked polymer networks, have emerged as powerful synthetic analogs of extracellular matrices for basic cell studies as well as promising biomaterials for regenerative medicine applications. A critical advantage of these synthetic matrices over natural networks is that bioactive functionalities, such as cell adhesive sequences and growth factors, can be incorporated […] Categories: Past Seminars |
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