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DTSTART;TZID=America/New_York:20220328T120000
DTEND;TZID=America/New_York:20220328T130000
DTSTAMP:20260406T052128
CREATED:20220207T143717Z
LAST-MODIFIED:20220207T143717Z
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SUMMARY:PSOC@Penn Seminar: Keshav Patil
DESCRIPTION:Physical Sciences in Oncology Center PSOC@Penn \nSpring 2022 Hybrid-Seminar Series \nTowne 225 / Raisler Lounge @ Noon (EST) \nFor Zoom link \, please contact manu@seas.upenn.edu
URL:https://seasevents.nmsdev7.com/event/psocpenn-seminar-gabriela-witek/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Doctoral,Graduate,Student
ORGANIZER;CN="PSOC":MAILTO:manu@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220329T100000
DTEND;TZID=America/New_York:20220329T113000
DTSTAMP:20260406T052128
CREATED:20220228T222727Z
LAST-MODIFIED:20220228T222727Z
UID:10007104-1648548000-1648553400@seasevents.nmsdev7.com
SUMMARY:MEAM Seminar: "Biomimetic Design of Marine Robots and Sensors"
DESCRIPTION:Inspiration from animal function can lead to effective design of engineered systems. Ocean systems benefit especially as operation in a heavy medium such as water imparts significant forces. We provide two examples of biomimetic design. In the first example\, morphing fins inspired from tunas are used to dynamically change the directional stability qualities of rigid hull vehicles\, enabling ultra-rapid maneuvering when deployed\, while ensuring stable locomotion when retracted. Morpheus\, a one-meter-long autonomous vehicle\, developed with Lockheed Martin Corp. funding\, demonstrated the maneuvering performance enhancement in the field. In the second example\, sensors inspired from the vibrissae of sea lions exhibit great sensitivity to even minute turbulent flows\, enabling the detection of plumes and underwater navigation in cluttered environments. Finally\, we discuss how Machine Learning applied to experimental testing adds a new capability to underwater robotic system development.
URL:https://seasevents.nmsdev7.com/event/meam-seminar-biomemetic-design-of-marine-robots-and-sensors/
LOCATION:Zoom – Email MEAM for Link\, peterlit@seas.upenn.edu
CATEGORIES:Seminar
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220329T110000
DTEND;TZID=America/New_York:20220329T120000
DTSTAMP:20260406T052128
CREATED:20220322T131043Z
LAST-MODIFIED:20220322T131043Z
UID:10007125-1648551600-1648555200@seasevents.nmsdev7.com
SUMMARY:ESE Spring Seminar - "New Frontiers in Quantum Simulation and Computation with Neutral Atom Arrays"
DESCRIPTION:Learning how to create\, study\, and manipulate highly entangled states of matter is key to understanding exotic phenomena in condensed matter and high energy physics\, as well as to the development of useful quantum computers. In this talk\, I will discuss recent experiments where we demonstrated the realization of a quantum spin liquid phase using Rydberg atoms on frustrated lattices and a new architecture based on the coherent transport of entangled atoms through a 2D array. Combining these results with novel technical tools on atom array platforms could open a broad range of possibilities for the exploration of entangled matter\, with powerful applications in quantum simulation and information.
URL:https://seasevents.nmsdev7.com/event/ese-spring-seminar-new-frontiers-in-quantum-simulation-and-computation-with-neutral-atom-arrays/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Colloquium
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220329T153000
DTEND;TZID=America/New_York:20220329T163000
DTSTAMP:20260406T052128
CREATED:20220323T164749Z
LAST-MODIFIED:20220323T164749Z
UID:10007129-1648567800-1648571400@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: " Quantum Computation and Cryptography: a changing landscape"
DESCRIPTION:Quantum computers will reshape the landscape of cryptography. On the one hand\, they threaten the security of most modern cryptosystems. On the other\, they offer fundamentally new ways to realize tasks that were never before thought to be possible. In this talk\, I will explore the interplay between quantum computation and cryptography\, and the many exciting questions at this intersection. I will describe examples that leverage quantum computers to protect against coercion in online elections\, and to prevent piracy of software.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-quantum-computation-and-cryptography-a-changing-landscape/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220329T153000
DTEND;TZID=America/New_York:20220329T170000
DTSTAMP:20260406T052128
CREATED:20220131T154059Z
LAST-MODIFIED:20220131T154059Z
UID:10007056-1648567800-1648573200@seasevents.nmsdev7.com
SUMMARY:Herman P. Schwan Distinguished Lecture: "Nucleoside-modified mRNA-LNP therapeutics" (Drew Weissman\, Perelman School of Medicine)
DESCRIPTION:Vaccines prevent 4-5 million deaths a year making them the principal tool of medical intervention worldwide. Nucleoside-modified mRNA was developed over 15 years ago and has become the darling of the COVID-19 pandemic with the first 2 FDA approved vaccines based on it. These vaccines show greater than 90% efficacy and outstanding safety in clinical use. The mechanism for the outstanding immune response induction are the prolonged production of antigen leading to continuous loading of germinal centers and the adjuvant effect of the LNPs\, which selectively stimulate T follicular helper cells that drive germinal center responses. Vaccine against many pathogens\, including HIV\, HCV\, HSV2\, CMV\, universal influenza\, coronavirus variants\, pancoronavirus\, nipah\, norovirus\, malaria\, TB\, and many others are currently in development. Nucleoside-modified mRNA is also being developed for therapeutic protein delivery. Clinical trials with mRNA encoded monoclonal antibodies are underway and many other therapeutic or genetic deficient proteins are being developed. Finally\, nucleoside-modified mRNA-LNPs are being developed and used for gene therapy. Cas9 knockout to treat transthyretin amyloidosis has shown success in phase 1 trials. We have developed the ability to target specific cells and organs\, including lung\, brain\, heart\, CD4+ cells\, all T cells\, and bone marrow stem cells\, with LNPs allowing specific delivery of gene editing and insertion systems to treat diseases such as sickle cell anemia\, Nucleoside-modified mRNA will have an enormous potential in the development of new medical therapies. \nThe Herman P. Schwan Distinguished Lecture is in honor of one of the founding members of the Department of Bioengineering\, who emigrated from Germany after World War II and helped create the field of bioengineering in the US. It recognizes people with a similar transformative impact on the field of bioengineering. \nThis lecture will be held live in person (Bodek Lounge\, Houston Hall) and via Zoom. A reception will follow the in-person event.\nZoom link\nPassword: schwan22
URL:https://seasevents.nmsdev7.com/event/herman-p-schwan-distinguished-lecture-drew-weissman/
LOCATION:Bodek Lounge\, Houston Hall\, 3417 Spruce St\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Distinguished Lecture,Faculty
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220330T103000
DTEND;TZID=America/New_York:20220330T233000
DTSTAMP:20260406T052128
CREATED:20220302T130852Z
LAST-MODIFIED:20220302T130852Z
UID:10007108-1648636200-1648683000@seasevents.nmsdev7.com
SUMMARY:ESE Spring Seminar - "Building Photonic Systems for Extreme-Scale Computing\, Particle Accelerations\, and Beyond"
DESCRIPTION:A photonic-electronic system can potentially process enormous amounts of data that no stand-alone electronics have been capable of. Furthermore\, a chip-scale optical atomic clock can be so precise that it only loses the equivalent of one second every million years. In the foreseeable future\, highly integrated photonics can usher disruptive advances in communications\, deep learning\, and atomic-photonic integration. \nTo realize this vision\, my research has built multi-levels of the photonic system stacks from discrete nanophotonic devices\, all the way to creating advanced system-level demonstrations. In this talk\, I will introduce recent experiments where we demonstrate natively error-free terabit/s data transmission using integrated frequency combs and multi-dimensional silicon photonics circuits [1]. The frequency comb device transduces a narrow linewidth laser into a series of replicas over hundreds of frequency modes [2]. We employed photonic inverse design for wavelength and spatial multiplexing to enable bandwidth density on silicon photonic circuits to be three orders of magnitude higher than that of optical fibers. \nI will conclude my talk with applications and prospects for large-scale photonic systems that can manipulate atoms\, ions\, and free electrons\, along with my preliminary studies on UV-visible nonlinear optics and laser particle accelerations on a chip [3]. \n[1] K.Yang\, …\, J.Vuckovic\, arXiv: 2103.14139 (2021). \n[2] K.Yang\, …\, K.Vahala\, Nature Photonics 12\, 297 – 302 (2018); M.Guidry*\, D.Lukin*\, K.Yang*\, …\, J.Vuckovic\, Nature Photonics 16\, 52 – 58 (2022). \n[3] D.Oh*\, K.Yang*\, …\, K.Vahala\, Nature Communications 8\, 13922 (2017); N.Sapra\, K.Yang\, …\, J.Vuckovic\, Science 367\, 79 – 83 (2020).
URL:https://seasevents.nmsdev7.com/event/ese-spring-seminar-building-photonic-systems-for-extreme-scale-computing-particle-accelerations-and-beyond/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Colloquium
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220330T150000
DTEND;TZID=America/New_York:20220330T160000
DTSTAMP:20260406T052128
CREATED:20220324T200038Z
LAST-MODIFIED:20220324T200038Z
UID:10007132-1648652400-1648656000@seasevents.nmsdev7.com
SUMMARY:Spring 2022 GRASP SFI: Rahul Mangharam\, University of Pennsylvania\, “Balancing Performance and Safety in Autonomous Vehicles”
DESCRIPTION:*This will be a HYBRID Event with in-person attendance in Levine 512 and Virtual attendance via Zoom \nBalancing performance and safety are crucial to deploying autonomous vehicles in multi-agent environments. In particular\, autonomous racing is a domain that penalizes safe but conservative policies\, highlighting the need for robust\, adaptive strategies. Current approaches either make simplifying assumptions about other agents or lack robust mechanisms for online adaptation. In this talk we will explore research themes on perception\, planning and control at the limits of performance. We explore (1) How to build the most efficient autonomous racecar with Multi-domain optimization across vehicle design\, planning and control; (2) How to generate the most competitive agents who dynamically balance safety and assertiveness by using distributionally robust online adaptation; We realize all our research in the https://f1tenth.org autonomous racecar platform that is 10th the size\, but 10x the fun! The main take away from this talk is how you can get involved in very exciting research on safe autonomous systems.  I will also present projects on AV Bus and AV Gokart that we are doing in the Autoware Center of Excellence for Autonomous Driving at Pennovation.
URL:https://seasevents.nmsdev7.com/event/spring-2022-grasp-sfi-rahul-mangharam-university-of-pennsylvania-balancing-performance-and-safety-in-autonomous-vehicles/
LOCATION:Levine 512
ORGANIZER;CN="General Robotics%2C Automation%2C Sensing and Perception (GRASP) Lab":MAILTO:grasplab@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220330T153000
DTEND;TZID=America/New_York:20220330T163000
DTSTAMP:20260406T052128
CREATED:20220114T224506Z
LAST-MODIFIED:20220114T224506Z
UID:10007017-1648654200-1648657800@seasevents.nmsdev7.com
SUMMARY:CBE Seminar: "Understanding and Designing Complex Materials to Stabilize Proteins and Enable Supra-Biological Properties”
DESCRIPTION:Abstract \nOur group is broadly focused on understanding and controlling the intersection of biology and materials at the molecular level. This intersection is critical in many areas of biotechnology where proteins and enzymes are integrated into or in constant contact with materials\, including biocatalysis\, tissue engineering\, drug delivery\, biosensing\, and vaccine formulation. In line with this interest\, we have developed a novel approach to elucidate the structure and transient behavior of protein molecules at the solution-solid interface based on dynamic single-molecule tracking. This approach\, which is uniquely sensitive to structural and interfacial dynamics\, includes the use of high throughput tracking of protein molecules by means of internal reflection fluorescence (TIRF) microscopy in combination with intramolecular as well as intermolecular Forster resonance energy transfer (FRET). An important aspect of this approach is the use of bioorthogonal labeling techniques to site-specifically introduce donor and acceptor fluorophores\, which allow fluctuations in FRET efficiency to be correlated with changes in protein structure. Notably\, in this approach\, as many as 106 protein molecules are tracked as they adsorb\, desorb\, diffuse\, and simultaneously undergo conformational changes and/or intermolecular associations\, permitting the statistical identification of dynamic\, spatial\, and population heterogeneity. The subsequent correlation of these dynamic behaviors on a molecule-by-molecule basis via large-scale multi-variate analyses\, moreover\, provides new insights into the connection between interfacial dynamics and protein structure. This talk will specifically focus on the application of this approach to understand the connection between protein dynamics and conformation\, and to rationally improve enzyme function.
URL:https://seasevents.nmsdev7.com/event/cbe-seminar-understanding-and-designing-complex-materials-to-stabilize-proteins-and-enable-supra-biological-properties/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Chemical and Biomolecular Engineering":MAILTO:cbemail@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220330T153000
DTEND;TZID=America/New_York:20220330T163000
DTSTAMP:20260406T052128
CREATED:20220323T201520Z
LAST-MODIFIED:20220323T201520Z
UID:10007130-1648654200-1648657800@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: "Building the Reliability Stack for Machine Learning"
DESCRIPTION:Currently\, machine learning (ML) systems have impressive performance but can behave in unexpected ways. These systems latch onto unintuitive patterns and are easily compromised\, a source of grave concern for deployed ML in settings such as healthcare\, security\, and autonomous driving. In this talk\, I will discuss how we can redesign the core ML pipeline to create reliable systems. First\, I will show how to train provably robust models\, which enables formal robustness guarantees for complex deep networks. Next\, I will demonstrate how to make ML models more debuggable. This amplifies our ability to diagnose failure modes\, such as hidden biases or spurious correlations. To conclude\, I will discuss how we can build upon this “reliability stack” to enable broader robustness requirements\, and develop new primitives that make ML debuggable by design.
URL:https://seasevents.nmsdev7.com/event/cis-seminar-building-the-reliability-stack-for-machine-learning/
LOCATION:Levine 307\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220331T110000
DTEND;TZID=America/New_York:20220331T120000
DTSTAMP:20260406T052128
CREATED:20220322T195015Z
LAST-MODIFIED:20220322T195015Z
UID:10007128-1648724400-1648728000@seasevents.nmsdev7.com
SUMMARY:ESE Spring Seminar - "From Exact Laws to Design Principles of Quantum Information Machines"
DESCRIPTION:Many-body quantum systems are the most powerful computers allowed by Nature. \nHow do they work? Can we control them? Are they useful? \nIn this talk\, I discuss how recent results in quantum information theory translate into quantum engineering solutions. I introduce a geometric information measure that rigorously evaluates the difference between two complex configurations of arbitrarily large quantum systems\, e.g.\, thousands of interacting atoms. The result is instrumental in finding the maximum conversion rate of physical resources\, such as energy and time\, into quantum computational power. A simple but universally valid inequality\, formally similar to the Heisenberg uncertainty relations\, bounds the size of a program that creates a target quantum state by its experimental cost. \nFinally\, I outline strategies to tackle critical problems related to information storage in quantum networks\, diagnostics of quantum devices\, and quantum sensing. New ways to identify\, quantify\, and harness distinctive traits of quantum particles\, e.g.\, entanglement\, will accelerate the transition of quantum technologies from textbooks to reality
URL:https://seasevents.nmsdev7.com/event/ese-spring-seminar-from-exact-laws-to-design-principles-of-quantum-information-machines/
LOCATION:Raisler Lounge (Room 225)\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar,Colloquium
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220331T153000
DTEND;TZID=America/New_York:20220331T163000
DTSTAMP:20260406T052128
CREATED:20220131T154813Z
LAST-MODIFIED:20220131T154813Z
UID:10007057-1648740600-1648744200@seasevents.nmsdev7.com
SUMMARY:BE Seminar: "Engineered Systems for Controlling Cellular Microenvironments: From Synthetic Extracellular Matrices to Multidimensional Disease Models" (April M. Kloxin)
DESCRIPTION:This seminar will be held in person and via zoom – check email for link. \nThe properties of the microenvironment in which cells reside\, from structure to mechanics and biochemical content\, increasingly are recognized as important drivers of cell function and fate\, including in the onset and progression of disease (e.g.\, late cancer recurrence and fibrosis).  Engineering soft materials to mimic key features of these complex microenvironments offers unique opportunities to probe and direct cellular functions and to test hypotheses about the role of specific extracellular cues in these diseases. In this seminar\, I will share our recent efforts to design reductionist synthetic mimics of complex collagen-rich microenvironments.  Specific applications of these and other engineered systems will be discussed for the creation of relevant multidimensional controlled cell culture models.  Further\, the opportunity that ‘omics’ tools provide for interrogation of cell responses within these engineered systems\, from benchmarking versus in vivo and patient data to obtaining unique insights into cellular responses\, also will be highlighted.  This multipronged approach to understanding cell-microenvironment interactions is providing new tools and insights for addressing currently intractable diseases\, including lung fibrosis and late cancer recurrence.
URL:https://seasevents.nmsdev7.com/event/be-seminar-april-m-kloxin/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Bioengineering":MAILTO:be@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220331T153000
DTEND;TZID=America/New_York:20220331T163000
DTSTAMP:20260406T052128
CREATED:20220324T132300Z
LAST-MODIFIED:20220324T132300Z
UID:10007131-1648740600-1648744200@seasevents.nmsdev7.com
SUMMARY:CIS Seminar: “Towards a Foundation for Reinforcement Learning”
DESCRIPTION:In recent years\, reinforcement learning algorithms have achieved strong empirical success on a wide variety of real-world problems. However\, these algorithms usually require a huge number of samples even just for solving simple tasks. It is unclear if there are fundamental statistical limits on such methods\, or such sample complexity burden can be alleviated by a better algorithm. In this talk\, I will give an overview of my research efforts towards bridging the gap between the theory and the practice of reinforcement learning. \nIn the first part of the talk\, I will show that under conditions that permit sample-efficient supervised learning\, any offline reinforcement learning algorithm still requires exponential number of samples information-theoretically\, due to a geometric amplification of the estimation error. Moreover\, through extensive experiments on a range of tasks\, I will show that substantial error amplification does occur in practical scenarios. Our results highlight a crucial difference between offline reinforcement learning and supervised learning. I will conclude this part by suggesting possible ways to improve the performance of practical reinforcement learning systems based on our new insights. \nIn the second part of the talk\, I will focus on the horizon-dependence of the sample complexity of tabular reinforcement learning. I will show the first tabular reinforcement learning algorithm whose sample complexity is completely independent of the horizon length. Our result resolves a fundamental open problem in reinforcement learning theory.
URL:https://seasevents.nmsdev7.com/event/6597/
LOCATION:Zoom – Email CIS for link\, cherylh@cis.upenn.edu
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220401T103000
DTEND;TZID=America/New_York:20220401T114500
DTSTAMP:20260406T052128
CREATED:20220309T145002Z
LAST-MODIFIED:20220309T145002Z
UID:10007114-1648809000-1648813500@seasevents.nmsdev7.com
SUMMARY:GRASP on Robotics: Kevin Lynch\, Northwestern University\, “Robot manipulation research in the Center for Robotics and Biosystems”
DESCRIPTION:*This seminar will be held in-person in Wu and Chen Auditorium as well as virtually via Zoom. \nResearch at the Center for Robotics and Biosystems at Northwestern University encompasses bio-inspiration\, neuromechanics\, human-machine systems\, and swarm robotics\, among other topics.  In this talk I will give an overview of some of our recent work\, with a particular focus on autonomous in-hand manipulation and human-robot collaborative manipulation with teams of mobile cobots.
URL:https://seasevents.nmsdev7.com/event/grasp-on-robotics-kevin-lynch-northwestern-university-robot-manipulation-research-in-the-center-for-robotics-and-biosystems/
LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="General Robotics%2C Automation%2C Sensing and Perception (GRASP) Lab":MAILTO:grasplab@seas.upenn.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220401T140000
DTEND;TZID=America/New_York:20220401T150000
DTSTAMP:20260406T052128
CREATED:20220118T193728Z
LAST-MODIFIED:20220118T193728Z
UID:10007022-1648821600-1648825200@seasevents.nmsdev7.com
SUMMARY:PICS Colloquium: "Preserving microscale features in continuum models of fiber network materials"
DESCRIPTION:Fiber networks at different length scales represent a prevalent microstructure of highly deformable materials and biological matter. At the microscale\, these fiber networks are key for the function of biological systems\, while at the macroscale they endow materials with striking characteristics\, such as unusual kinematic behavior and high defect tolerance. Resolving the microstructure in discrete network models has helped understanding the mechanisms responsible for these outstanding characteristics\, and computational homogenization can be used to simulate the macroscopic response. Notwithstanding\, nonlinear continuum mechanics\, by definition only applicable at the larger length scales\, has likewise proved suitable to capture many of these special features in dedicated approaches. \nAfter discussing some recent examples of special characteristics and their implications in network materials\, this seminar will focus on analytical methods to model the transition from the single fiber to the homogenized network scale in continuum mechanical models. The commonly used micro-macro approaches used to this end are based on establishing relations between the macroscopic deformation field and the deformation of vectorial line elements\, which represent referential fiber directions and are defined on the unit sphere. For non-affine networks\, this concept reaches its limit\, and an alternative concept will be presented instead. The latter is based on a new type of constitutive relation between the distribution of fiber stretch and the macroscopic deformation gradient. This new approach\, albeit not free of challenges\, opens up new routes for constitutive modelling of network materials\, able to capture both the macroscale behavior and features of their distinct microscopic kinematics. Finally\, the approach allows reformulating the classical concepts\, and thus not only provides alternative strategies for their numerical implementation but also new perspectives that reveal inherent and potentially limiting assumptions behind these theories.
URL:https://seasevents.nmsdev7.com/event/pics-colloquium-preserving-microscale-features-in-continuum-models-of-fiber-network-materials/
LOCATION:Zoom – email kathom@seas.upenn.edu
CATEGORIES:Colloquium
ORGANIZER;CN="Penn Institute for Computational Science (PICS)":MAILTO:dkparks@seas.upenn.edu
END:VEVENT
END:VCALENDAR