Deng B, Raney JR, Tournat V, Bertoldi K. Elastic vector solitons in soft architected materials. Physical Review Letters. 2017;118 :204102. [pdf] [movies]
Boatti E, Vasios N, Bertoldi K. Origami Metamaterials for Tunable Thermal Expansion. Advanced Materials. 2017;29 (26).Abstract

Materials with engineered thermal expansion, capable of achieving targeted area/volume changes in response to variations in temperature, are important for a number of aerospace, optical, energy, and microelectronic applications. While most of the proposed structures with engineered coefficient of thermal expansion consist of bi-material 2D or 3D lattices, here it is shown that origami metamaterials also provide a platform for the design of systems with a wide range of thermal expansion coefficients. Experiments and simulations are combined to demonstrate that by tuning the geometrical parameters of the origami structure and the arrangement of plates and creases, an extremely broad range of thermal expansion coefficients can be obtained. Differently from all previously reported systems, the proposed structure is tunable in situ and nonporous.

[pdf] [cover]
Buckling-Induced Kirigami
Rafsanjani A, Bertoldi K. Buckling-Induced Kirigami. Physical Review Letters. 2017;118 :084301. [pdf] [movies] [cover]
Wang Z, Polygerinos P, Overvelde JTB, Galloway KC, Bertoldi K, Walsh CJ. Interaction Forces of Soft Fiber Reinforced Bending Actuators. IEEE/ASME Transactions on Mechatronics. 2017. [pdf]
Wang P, Zheng Y, Fernandes MC, Sun Y, Xu K, Sun S, Kang SH, Tournat V, Bertoldi K. Harnessing Geometric Frustration to Form Band Gaps in Acoustic Networks. Physical Review Letters [Internet]. 2017;118 (8) :084302. Matlab Code [pdf]
Overvelde JTB, Weaver JC, Hoberman C, Bertoldi K. Rational design of reconfigurable prismatic architected materials. Nature. 2017;541 :347-352. [pdf] [movies] [matlab code] [News&Views]
Connolly F, Walsh CJ, Bertoldi K. Automatic design of fiber-reinforced soft actuators for trajectory matching. Proceedings of the National Academy of Sciences of the United States of America. 2017;114 :51-56. [pdf] [movies]
Babaee S, Overvelde JTB, Chen ER, Tournat V, Bertoldi K. Reconfigurable origami-inspired acoustic waveguides. Science Advances. 2016;2 :e1601019. [pdf] [movies]
Taylor M, Gozen I, Patel S, Jesorka A, Bertoldi K. Peridynamic Modeling of Ruptures in Biomembranes. PLOS ONE. 2016. [pdf]
Lauder GV, Wainwright DK, Domel AG, Weaver JC, Wen L, Bertoldi K. Structure, biomimetics, and fluid dynamics of fish skin surfaces. Physical Review Fluids. 2016;1 :060502. [pdf]
Raney J, Nadkarni N, Daraio C, Kochmann DM, Lewis JA, Bertoldi K. Stable propagation of mechanical signals in soft media using stored elastic energy. Proceedings of the National Academy of Sciences of the United States of America. 2016. [pdf]
Overvelde JTB, Dykstra DMJ, de Rooij R, Weaver J, Bertoldi K. Tensile Instability in a Thick Elastic Body. Physical Review Letters. 2016. [pdf]
Javid F, Liu J, Shim J, Weaver JC, Shanian A, Bertoldi K. Mechanics of instability-induced pattern transformations in elastomeric porous cylinders. Journal of the Mechanics and Physics of Solids. 2016;96 :1-17. [pdf]
Zárate Y, Babaee S, Kang SH, Neshev DN, Shadrivov IV, Bertoldi K, Powell DA. Elastic metamaterials for tuning circular polarization of electromagnetic waves. Scientific Reports. 2016;6 :28273. [pdf]
Liu J, Gu T, Shan S, Kang SH, Weaver J, Bertoldi K. Harnessing buckling to design architected materials that exhibit effective negative swelling. Advanced Materials. 2016. [pdf]
Javid F, Wang P, Shanian A, Bertoldi K. Architected Materials with Ultra-Low Porosity for Vibration Control. Advanced Materials. 2016. [pdf]
Overvelde JTB, de Jong TA, Shevchenko Y, Becerra SA, Whiteside G, Weaver JC, Hoberman C, Bertoldi K. A three-dimensional actuated origami-inspired transformable metamaterial with multiple degrees of freedom. Nature Communications. 2016;7 :10929. [pdf] [movies]
Harnessing Deformation to Switch On and Off the Propagation of Sound
Babaee S, Viard N, Wang P, Fang NX, Bertoldi K. Harnessing Deformation to Switch On and Off the Propagation of Sound. Advanced Materials. 2016;8 :1631-1635. [pdf] [cover]
Yang D, Jin L, Martinez RV, Bertoldi K, Whitesides GM, Suo Z. Phase-transforming and switchable metamaterials. Extreme Mechanics Letters. 2016;6 :1-9. [pdf]
Liu J, Su T, Wicks N, Pabon J, Bertoldi K. The Instability Mechanism of a Confined Rod Under Axial Vibrations. Journal of Applied Mechanics. 2016;83 :011005-1-10. [pdf]