Mar
27
Mon
Distinguished Lecture Series
Mar 27 @ 5:00 pm – 6:00 pm
Distinguished Lecture Series @ Galbraith Building, Rm 119

Peter Halsall Distinguished Lecture

Lorna Gibson

Department of Materials Science & Mechanical Engineering
Massachusetts Institute of Technology 

Cellular Solids:  Structure, Properties and Applications

Abstract

Many materials have a cellular structure, with either a two-dimensional array of prismatic cells, as in a honeycomb, or a three-dimensional array of polyhedral cells, as in a foam. Engineering honeycombs and foams can now be made from nearly any material: polymers, metals, ceramics, glasses and composites, with pore sizes ranging from nanometers to millimeters. Their cellular structure gives rise to a unique combination of properties which are exploited in engineering design: their low weights make them attractive for structural sandwich panels, their ability to undergo large deformations at relatively low stresses makes them ideal for absorbing the energy of impacts, their low thermal conductivity makes them excellent insulators, and their high specific surface areas make them attractive for substrates for catalysts for chemical reactions.  Cellular materials are also important in medicine.  In patients with osteoporosis, the two most common fractures are of the hip and spine, both of which have large amounts of spongy or trabecular bone.  And porous scaffolds for regeneration of damaged or diseased tissues often resemble an open-cell foam.  Cellular materials are also widespread in plant tissues, including wood, cork, bamboo and plant stems and leaves.  This talk reviews the structure, mechanical behaviour and applications of a broad range of cellular materials.

Bio

Professor Lorna Gibson is an alumna of the Department of Civil Engineering at the University of Toronto and is currently the Matoula S. Salapatas Professor of Materials Science and Engineering at MIT.  Professor Gibson studies the mechanical behavior of materials, specializing in materials with a cellular structure, such as engineering honeycombs and foams, scaffolds for regenerative engineering, and natural materials such as wood, bamboo and plant leaves and stems. She is the co-author of Cellular Solids: Structure and Properties (with MF Ashby), Metal Foams: A Design Guide, (with MF Ashby, AG Evans, NA Fleck, JW Hutchinson and HNG Wadley) and Cellular Materials in Nature and Medicine (with MF Ashby and BA Harley).

Current research projects include: balsa as a model for bioinspired design of engineering materials and the mechanics of structural bamboo products, analogous to wood products such as oriented strandboard. Professor Gibson was recently named a MacVicar Faculty Fellow, MIT’s top award for undergraduate teaching. She has served as Chair of the Faculty and Associate Provost at MIT.


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Apr
6
Thu
Distinguished Lecture Series
Apr 6 @ 5:00 pm – 6:00 pm
Distinguished Lecture Series @ Galbraith Building, Rm 303

Anu Ramaswami

Humphrey School of Public Affairs

University of Minnesota 

Bio:

Ramaswami is among the leading scholars on sustainable urban infrastructure and has seen her work adopted as policies and protocols for developing sustainable cities in the United States and internationally.

Ramaswami’s research spans environmental modeling, environmental technologies, industrial ecology, sustainable infrastructure design, urban systems analysis, and integration of science and technology with policy and planning for real-world implementation in communities. She has developed novel interdisciplinary education programs and resources in these diverse areas. She is the lead author of a graduate-level textbook on integrated environmental modeling.

Ramaswami received her B.S. in chemical engineering from the Indian Institute of Technology–Madras, India, and her M.S. and PhD in civil and environmental engineering from Carnegie Mellon University in Pittsburgh. She serves as chair of the newly founded Sustainable Urban Systems section at the International Society of Industrial Ecology, and represents the United States in various international urban sustainability networks.


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Apr
27
Thu
Distinguished Lecture Series
Apr 27 @ 5:00 pm – 6:00 pm
Distinguished Lecture Series @ Galbraith Building, Rm 303

Joel Conte

Department of Structural Engineering

University of California, San Diego

Lecture details to come.


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May
31
Wed
Spring Reunion
May 31 – Jun 3 all-day