The paper discusses a mechanism for the the accidental untying of a shoelace knot that many of us, including me, experience on a daily basis. The failure is sudden and catastropic as can be seen in the following video:
My latest textbook, O. M. O’Reilly, Modeling Nonlinear Problems in the Mechanics of Strings and Rods, has just been published by Springer Verlag. The electronic version of this book is available (for free if your university's library has a subscription) on this website:
The DEPARTMENT OF MECHANICAL ENGINEERING, University of California, Berkeley, seeks applications for a tenure-track, Assistant Professor position in the areas of Design, Robotics, Applied Energy Systems, and Nanoscale Systems Engineering.
Many in this community may have heard the sad news of the passing last weekend of Michael Carroll. Two obituaries have been posted: one at U.C. Berkeley where he was a faculty member for many years and another at Rice University where he was a former Dean of the College of Engineering.
For those of you preparing to teach a course on Lagrangian Mechanics of Rigid Bodies in the forthcoming semester or quarter, you may be interested to read a new expository paper by Arun Srinivasa at Texas A&M and myself: