1. Periodic folding of thin sheets. Author Mahadevan, L. and Keller, Joseph B. Subjects *ELASTICITY, *PAPER Abstract Examines the nonlinear elasticity of a paper sheet. Formulation of a free boundary value problem for the quasi-static evolution of one-half period of a fold; Dimensional analysis of paper sheet folding; Characteristic of free-standing fold. Published 1999 Full Text View/download PDF