Buckling, Crumpling, And Tumbling Of Semiflexible Sheets In Simple Shear Flow

Abstract: As 2D materials such as graphene, transition metal dichalcogenides, and 2D polymers become more prevalent, solution processing and colloidal-state properties are being exploited to create advanced and functional materials. However, our understanding of the fundamental behavior of 2D sheets and membranes in fluid flow is still lacking. In this work, we perform numerical simulations of athermal semiflexible sheets with hydrodynamic interactions in shear flow. For sheets initially oriented in the flow-gradient plane, we find buckling instabilities of different mode numbers that vary with bending stiffness and can be understood with a quasi-static model of elasticity. For different initial orientations, chaotic tumbling trajectories are observed.

ZOOM MEETING info:

mit.zoom.us/j/96155042770

Meeting ID: 961 5504 2770

Computer scienceMathematics

Audience: researchers in the topic

Computational Research in Boston and Beyond Seminar (CRIBB)