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SUNMONTUEWEDTHUFRISAT
Events for February 02, 2021
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Viterbi Career & Internship Expo
Tue, Feb 02, 2021 @ 10:00 AM - 05:00 PM
Viterbi School of Engineering Career Connections
University Calendar
This event is open exclusively to Viterbi undergraduate, graduate and doctoral students and facilitates connections between Viterbi students and employers.
Registration Information Coming Soon!
Location: TBD
Time: 10 a.m. - 5 p.m. (PST) | 10:30 p.m. - 5:30 a.m. (IST) | 1 a.m. - 8 a.m. (CST)
For the most up-to-date information on the Career & Internship Expo, visit: https://viterbicareers.usc.edu/careerexpo/
Audiences: Everyone Is Invited
Contact: RTH 218 Viterbi Career Connections
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Astani Department of Civil and Environmental Engineering Seminar
Tue, Feb 02, 2021 @ 11:00 AM - 12:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Sanjay Govindjee, University of California, Berkeley
Talk Title: Soft and Semi-Soft Elasticity and for Liquid Crystal Elastomers
Abstract: Liquid crystal elastomers present a relatively new and interesting class of materials that display soft and semi-soft elastic behavior as well as viscoelastic behavior. These materials are comprised of liquid crystal molecules together with polymerizing agents to form a final solid that behaves as an elastomeric solid would, as well as like a liquid crystal would. The interaction of these two features provides for a wide and complex range of macroscopically observed phenomena, including for example optical actuation, extreme softness, pattern formation, and high damping to name a few. Because of the wide range of behaviors and the materials highly non-linear properties (material and geometric non-linearities), the modeling of these materials is somewhat challenging. A direct phenomenological approach is generally precluded or only applicable to a small range of loading states. On the other hand, developing models from an atoms-up approach has its own limitations in terms of feasibility. Past efforts mostly involve a compromise and blend of these two approaches, often opaquely, and as such the literature contains a number of different options and viewpoints as to what is important in the modeling of liquid crystal elastomers.
In this presentation, we revisit a number of proposed models for liquid crystal elastomers and try to clearly articulate their meaning. We do this by first examining the fundamental physics associated with the materials constituents. From there we build up, using statistical mechanics arguments, the appropriate structures for describing the materials free-energy functions. This will lead us to an understanding of the meaning of the so-call trace formula for soft elasticity, allowing us to give a precise statement as to what it accounts for and what it does not account for. In particular, we will see that the trace formula is not a strictly entropic result, but rather a hybrid relation. We will also see that the mathematical structure of this energy fails to be quasi-convex and we will discuss the implications of this defect for the solution of boundary value problems with regard to existence of solutions, quasi-convex approximations, and modeling of microstructure evolution. We will next examine microstructural feature of poly-dispersity and see that it gives rise to semi-soft elasticity, and compare and contrast the resulting model structure with a some phenomenological proposals found in the literature for semi-soft elasticity. Time permitting, we will also examine the unique nature of the governing balance laws for these materials which lead to non-symmetric Cauchy stresses.
Biography: Sanjay Govindjee is a Professor of Civil Engineering and the Horace, Dorothy, and Katherine Johnson Endowed Professor at the University of California, Berkeley (1993-2006, 2008-present). His main interests are in theoretical and computational mechanics with an emphasis on micro-mechanics, shape memory alloys, and elastomers. Prior to joining Berkeley he worked as an engineer at the Lawrence Livermore National Laboratory (1991-1993) in Livermore, California. He was also Professor of Mechanics at ETH Zürich (2006-2008) in Zürich, Switzerland.
Sanjay Govindjee obtained a Ph.D. in Mechanical Engineering with a minor in Physics from Stanford University in 1991 under the guidance of the late Prof. Juan C. Simo and a M.S. in Mechanical Engineering from Stanford University in 1987. His S.B. is in Mechanical Engineering from the Massachusetts Institute of Technology in 1986.
Noteworthy honors include a National Science Foundation Career Award, the inaugural 1998 Zienkiewicz Prize and Medal, an Alexander von Humboldt Foundation Fellowship 1999, a Berkeley Chancellor's Professorship 2006-2011, and a guest Professorship at ETH Zürich 2008-2013. In 2015 he was named a Fellow of the US Association for Computational Mechanics. In 2018 he received a Humboldt-Forschungspreis (Humboldt Research Award).
He currently serves as the Principal Investigator and co-Director of the National Science Foundation Natural Hazards Engineering Research Infrastructure SimCenter at Berkeley
Host: Dr. Roger Ghanem
Location: Zoom Meeting https://usc.zoom.us/j/97228056404 Meeting ID: 972 2805 6404 Passcode: 864779
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Undergraduate Advisement Drop-in HoursTue, Feb 02, 2021 @ 01:30 PM - 02:30 PM
Thomas Lord Department of Computer Science
Workshops & Infosessions
Do you have a quick question? The CS advisement team will be available for drop-in live chat advisement for declared undergraduate students in our four majors during the spring semester on Tuesdays, Wednesdays, and Thursdays from 1:30pm to 2:30pm Pacific Time. Access the live chat on our website at: https://www.cs.usc.edu/chat/
Location: Online
Audiences: Undergrad
Contact: USC Computer Science
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M.S. Group Advisement
Tue, Feb 02, 2021 @ 03:00 PM - 04:00 PM
Thomas Lord Department of Computer Science
Workshops & Infosessions
This optional group advisement session is for new and continuing M.S. Computer Science students and M.S. students in our Data Science Programs. Access instructions will be emailed to students prior to the session.
Location: Online - Zoom
Audiences: Graduate
Contact: USC Computer Science
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ISE 651 - Epstein Seminar
Tue, Feb 02, 2021 @ 03:30 PM - 04:50 PM
Daniel J. Epstein Department of Industrial and Systems Engineering
Conferences, Lectures, & Seminars
Speaker: Dr. Giulia Pedrielli, Assistant Professor, School of Computing, Informatics, and Design Systems Engineering, Arizona State University
Talk Title: Black Box Optimization in the Era of Intelligent Cyber Physical Systems
Host: Prof. Julie Higle
More Information: February 2, 2021.pdf
Location: Online/Zoom
Audiences: Everyone Is Invited
Contact: Grace Owh
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Mork Family Department Spring Virtual Seminars - Corinne Packard
Tue, Feb 02, 2021 @ 04:00 PM - 05:00 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Speaker: Corinne Packard, Colorado School of Mines
Talk Title: III-V PHOTOVOLTAIC SUBSTRATE REUSE USING FRACTURE
Abstract: ZOOM MEETING INFO:
https://usc.zoom.us/j/98225952695?pwd=d0NMenhCNkliR1ZIR1lBamRpZHh1UT09
Meeting ID: 982 2595 2695
Passcode: 322435
Host: Andrea Hodge
More Info: https://usc.zoom.us/j/98225952695?pwd=d0NMenhCNkliR1ZIR1lBamRpZHh1UT09
More Information: USC Dept Seminars-Spring2021[1].pdf
Audiences: Everyone Is Invited
Contact: Greta Harrison
Event Link: https://usc.zoom.us/j/98225952695?pwd=d0NMenhCNkliR1ZIR1lBamRpZHh1UT09
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Spark SC Info Session
Tue, Feb 02, 2021 @ 06:00 PM - 07:00 PM
Thomas Lord Department of Computer Science
Workshops & Infosessions
Spark SC's Applications are LIVE!
Spark SC is a student-run entrepreneurship ecosystem at USC dedicated to building communities, unlocking opportunities, and expanding social impact for current and budding entrepreneurs. We believe in showing students at USC that creativity and entrepreneurship is for everyone, whether it would be building a startup, creating art, starting a non-profit, or launching a movement.
Join us at our Info Session this Tuesday from 6-7 pm PST to learn more about how you can help shape USC's entrepreneurial landscape.
Info Session: Feb 2nd, 6-7 pm PST, (https://usc.zoom.us/j/94739552637)
Application Deadline: Feb 5th, 11:59 pm PST
Apply Here: https://sparksc.typeform.com/to/vZmB2IpL
Follow us on Instagram for more updates: https://www.instagram.com/gosparksc/
Location: Online - Zoom
WebCast Link: https://usc.zoom.us/j/94739552637
Audiences: Undergrad
Contact: Spark SC
