PRISM/PCCM SEMINAR SERIES FALL 2017: Shmuel Rubinstein, Harvard University

Sep 20, 2017, 12:00 pm – 1:00 pm
Bowen Hall Auditorium 222


Event Description

The Crumpled State: Crumpling Dynamics and the Evolution of Damage Networks

Abstract: The simple process of crumpling a sheet of paper with our hands results in a complex network of interconnected permanent creases of many sizes and orientations. Sheet preferentially bends along these creases, introducing history dependence to the process of crumpling. I will present an experimental study of the dynamics of crumpling. Specifically, I will first discuss how a crease network evolves when a thin elastoplastic sheet is repeatedly crumpled, opened up and then re-crumpled. Is there a maximally crumpled state after which the flat sheet can be deformed without further plastic damage? If time permits I will also discuss the crumpling of soda cans, focusing on our attempts to characterize their stability in the case where one single defect dominates buckling.

All seminars are held on Wednesdays from 12:00 noon-1:00 p.m. in the Bowen Hall Auditorium Room 222. A light lunch is provided at 11:30 a.m. in the Bowen Hall Atrium immediately prior to the seminar.