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  • Apr
    3

    SPREE Seminar Series- Toughness of Hydrogels- John Bassani

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    Title: Toughness of Hydrogels

    Abstract: Poroelastic hydrogels display dissipative behavior due to liquid diffusion, and defining fracture toughness is an open issue. Our primary interest is fibrous gels such as cartilage, blood clots, and carbon-nanotube-based sponges with absorbed oils which suffer a reduction in volume by the expulsion of liquid under uniaxial tension, which directly affects crack-tip fields and energy release rates. We have carried out experiments on fibrin gels coupled with a large-deformation continuum model to investigate the initiation of crack growth. The continuum model is formulated for isotropic fibrous gels that exhibit a range of behaviors volume increasing to volume decreasing in uniaxial tension by changing the ratio of two material parameters. The direction of liquid fluxes around cracks is shown to depend on whether the gel locally increases or decreases in volume. The energy release rate for cracks is computed using a surface-independent integral and it is shown to have two contributions — one from the stresses in the solid network, and another from the flow of liquid. The contribution to the integral from liquid permeation tends to be negative when the gel exhibits volume decrease, which effectively is a crack shielding mechanism. Both from correlations with experiments and from simulations based on a critical stretch fracture criterion, we show that both contributions are required to characterize the fracture toughness of these materials. Some historical perspective on fracture toughness of dissipated solids will also be discussed.

    Bio: John L. Bassani received a B.S. in Mechanical Engineering from Lehigh University in 1973 and worked as a Structural Engineer at Fairchild-Republic Aviation in New York before beginning graduate studies. He received a M.S. in Applied Mechanics from Lehigh University in1975 and Ph.D. in Engineering from Harvard University in 1978 on the mechanics of polycrystalline plasticity. During the next two years, he was a post doc and lecturer and then an Assistant Professor of Mechanical Engineering at the Massachusetts Institute of Technology focusing on the mechanics of high-temperature crack growth. Since 1980 he has been on the faculty of Mechanical Engineering and Applied Mechanics at the University of Pennsylvania and has held the Richard H. and S. L. Gabel Professorship since 1993. He was Chair of MEAM for 11 years, from 1997-2005 and 2008-2011. He also holds appointments in Materials Science and Engineering, the Laboratory for Research on the Structure of Matter, and the Institute of Medicine and Engineering at Penn. He has held visiting professor positions at the University of California at Santa Barbara, Harvard University, and Brown University. He is the recipient of the Presidential Young Investigator Award, Fellow of the American Society of Mechanical Engineers, Midwest Mechanics Lecturer, Board of Directors of the Society of Engineering Science and President of SES in 2008, and 2019 American Society of Mechanical Engineers Daniel C. Drucker Medal. He has served on the editorial boards of Modelling and Simulation in Materials Science and Engineering, Interface Science, Journal of Applied Mechanics, and Mechanics of Materials. Professor Bassani’s research interests include: the relationship between properties of discrete and continuous media; interfacial mechanics; formation and properties of nanostructures; adhesion of shells, mechanics of living cells and tissue; plastic deformation of crystals and polycrystals; material stability and localized deformation; mechanics of fracture and fatigue; and material degradation under extreme environments.

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    TIME Wednesday, April 3, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    15

    AED/MPM PD Seminar Series- Dave Shier

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM 1101, Pancoe-NSUHS Life Sciences Pavilion

    EVENT DETAILS

    TIME Monday, April 15, 2024 at 11:00 AM - 12:00 PM

    LOCATION 1101, Pancoe-NSUHS Life Sciences Pavilion    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    17

    SPREE Seminar Series- Bio-inspired Burrowing Mechanisms and Robots- Julian Tao

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, April 17, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    19

    EES Seminar Series- Water Treatment Materials and Membranes- Chris Arnusch

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, April 19, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    22

    AED/MPM PD Seminar Series- Luke Leung

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM 1101, Pancoe-NSUHS Life Sciences Pavilion

    EVENT DETAILS

    TIME Monday, April 22, 2024 at 11:00 AM - 12:00 PM

    LOCATION 1101, Pancoe-NSUHS Life Sciences Pavilion    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    24

    SPREE Seminar Series - From Dots In Space To Space-Time-Magnitude Connections: Evolution of Energy Release Research As Applied to Damage Mechanics and Induced Seismicity- Jesse Hampton

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, April 24, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Apr
    26

    EES Seminar Series- Kaize Ding

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, April 26, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    1

    SPREE Seminar Series- Roman Makhenko

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, May 1, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    3

    EES Seminar Series- X-ray fluorescence microscopy for life and environmental studies at the Advanced Photon Source- Si Chen

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, May 3, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    6

    AED/MPM PD Seminar Series- Steve Nargang

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM 1101, Pancoe-NSUHS Life Sciences Pavilion

    EVENT DETAILS

    TIME Monday, May 6, 2024 at 11:00 AM - 12:00 PM

    LOCATION 1101, Pancoe-NSUHS Life Sciences Pavilion    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    8

    SPREE Seminar Series- Investigating Single & Multi-Component Polymer Grafted Nanoparticles using Molecular Modelling- Subhadeep Pal

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, May 8, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    10

    EES Seminar Series- Phosphorous Recycling- Jade Basinski

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, May 10, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    13

    AED/MPM PD Seminar Series- Albert Mena & Maya Stuhlbarg

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM 1101, Pancoe-NSUHS Life Sciences Pavilion

    EVENT DETAILS

    TIME Monday, May 13, 2024 at 11:00 AM - 12:00 PM

    LOCATION 1101, Pancoe-NSUHS Life Sciences Pavilion    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    15

    SPREE Seminar Series- Understanding Heat Transport at Grain Boundaries Through High Resolution Imaging- Elenora Isotta

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, May 15, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    17

    EES Seminar Series- Dave Lampert

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, May 17, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    20

    AED/MPM PD Seminar Series- Andres Marulanda Escobar

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM 1101, Pancoe-NSUHS Life Sciences Pavilion

    EVENT DETAILS

    TIME Monday, May 20, 2024 at 11:00 AM - 12:00 PM

    LOCATION 1101, Pancoe-NSUHS Life Sciences Pavilion    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    22

    SPREE Seminar Series- Mechanism-Based Multi-Scale Models for Damage and Failure in Heterogeneous Materials- Kedar Kirane

    McCormick - Civil and Environmental Engineering (CEE)

    11:00 AM A236, Technological Institute

    EVENT DETAILS

    TIME Wednesday, May 22, 2024 at 11:00 AM - 12:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • May
    24

    EES Seminar Series- PFAS Characterization- Gordon Getzinger

    McCormick - Civil and Environmental Engineering (CEE)

    2:00 PM A236, Technological Institute

    EVENT DETAILS

    TIME Friday, May 24, 2024 at 2:00 PM - 3:00 PM

    LOCATION A236, Technological Institute    map it

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Jun
    6

    CEE Department Graduation Recognition and Ceremony

    McCormick - Civil and Environmental Engineering (CEE)

    4:00 PM 1702 Chicago Ave

    EVENT DETAILS

    TIME Thursday, June 6, 2024 at 4:00 PM - 8:00 PM

    LOCATION 1702 Chicago Ave   

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Jun
    7

    CEE Graduating Undergraduate Celebrating

    McCormick - Civil and Environmental Engineering (CEE)

    6:00 PM 623 W Howard St

    EVENT DETAILS

    TIME Friday, June 7, 2024 at 6:00 PM - 9:00 PM

    LOCATION 623 W Howard St   

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    CONTACT Andrew Liguori    andrew.liguori@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering (CEE)

  • Jun
    10

    Northwestern Engineering PhD Hooding and Master's Degree Recognition Ceremony

    McCormick School of Engineering and Applied Science

    9:00 AM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 9:00 AM - 11:00 AM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Jun
    10

    Northwestern Engineering Undergraduate Convocation

    McCormick School of Engineering and Applied Science

    2:00 PM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 2:00 PM - 4:00 PM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science