Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Affiliates 
 Alumni 
 Visitors 
 Students 
 Research 
 ICAM-LANL 
 Quantum 
 Publications 
 Publications 
 2007 
 2006 
 2005 
 2004 
 2003 
 2002 
 2001 
 2000 
 <1999 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Colloquia 
 Colloquia Archive 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Colloquia 
 
 Jobs 
 Students 
 Summer Research 
 Student Application 
 Visitors 
 Description 
 Past Visitors 
 Services 
 General 
 PD Travel Request 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Tuesday, May 27, 2008
3:00 PM - 4:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Colloquium

Cuts, cracks and creases: geometry and mechanics

L. Mahadevan
Harvard University

I will discuss some simple examples of how solids fail when strongly deformed. In each example, geometry and physics meld with each other interestingly. We start with the example of opening an envelope with the finger, and show how geometry dictates the pattern of failure. We then move on to how a thin film peels off from a substrate to which it is adhered and show how the undulations that appear dramatically change the toughness of the interface. Moving on to a layer of scum on the surface of a liquid, we show how surfactants cause the scum to fracture in a rather dramatic way. We close with a discussion of how mud cracks and how creases form on soft interfaces.

Host: Bob Ecke, T-CNLS