The effective properties of many physical systems are determined by their geometry. This allows us to predict and, ultimately, design new materials by controlling shape.

• Extreme mechanics and nonlinear elasticity
• Liquid crystals
• Origami, folding, and mechanisms
• Designing mechanical metamaterials

Self-assembly and the formation of 3D structure

Soft condensed-matter theory

Materials geometry

• ME Lee-Trimble, JH Kang, RC Hayward, and C.D. Santangelo, “Robust folding of elastic origami,” Soft Matter 18, 6384 -6391 (2022).
• Manu Mannattil, J.M. Schwarz, and C.D. Santangelo, “Thermal fluctuations of singular bar-joint mechanisms,” Phys. Rev. Lett. 128, 208005 (2022).
• Daria W. Atkinson, C.D. Santangelo, and Gregory M. Grason, “Mechanics of metric frustration in contorted filament bundles:From local symmetry to columnar elasticity,” Phys. Rev. Lett. 127, 218002 (2021).
• P-W Lo, C.D. Santangelo, B.G. Chen, C. Jian, K. Roychowdhury, M.J. Lawler, “Topology in non-linear mechanical systems,” Phys. Rev. Lett. 127, 076802 (2021).
• Nakul P. Bende, Arthur A. Evans, Sarah Innes-Gold, Luis A. Marin, Itai Cohen, Ryan C. Hayward, C.D. Santangelo, “Geometrically controlled snapping transitions in shells with curved creases,” Proc. Nat. Acad. Sci. 112, 11175–11180 (2015).
• J.L. Silverberg, A. Evans, L. McLeod, R.C. Hayward, C.D. Santangelo, T. Hull, and I. Cohen, “Using origami design principles to fold reprogrammable mechanical metamaterials,” Science 345, 647–650 (2014).
• J. Kim, J.A. Hanna, M. Byun, C.D. Santangelo, and R.C. Hayward, “Designing responsive buckled surfaces by halftone gel lithography,” Science 335, 1201-1205 (2012).

• 2019, Fellow of the American Physical Society
• 2016, Early career award, APS Division of soft matter
• 2009, CAREER award, National Science Foundation
• 2006, Glenn H. Brown Prize, International Liquid Crystal Society