Now showing items 1-12 of 12

    • Controlled formation and disappearance of creases 

      Chen, Dayong; Jin, Lihua; Suo, Zhigang; Hayward, Ryan C. (Royal Society of Chemistry (RSC), 2014)
      Soft, elastic materials are capable of large and reversible deformation, readily leading to various modes of instability that are often undesirable, but sometimes useful. For example, when a soft elastic material is ...
    • Creases on the interface between two soft materials 

      Jin, Lihua; Chen, Dayong; Hayward, Ryan C.; Suo, Zhigang (Royal Society of Chemistry (RSC), 2014)
      Theory and experiment are presented to show that an interface between two soft materials under compression can form creases, a type of bifurcation distinct from wrinkles. While creases bifurcate from a state of flat ...
    • Macroporous Nanowire Nanoelectronic Scaffolds for Synthetic Tissues 

      Tian, Bozhi; Liu, Jia; Dvir, Tal; Jin, Lihua; Tsui, Jonathan H.; Qing, Quan; Suo, Zhigang; Langer, Robert S.; Kohane, Daniel Solomon; Lieber, Charles M. (Nature Publishing Group, 2012)
      The development of three-dimensional (3D) synthetic biomaterials as structural and bioactive scaffolds is central to fields ranging from cellular biophysics to regenerative medicine. As of yet, these scaffolds cannot ...
    • Mechanical Instabilities of Soft Materials: Creases, Wrinkles, Folds, and Ridges 

      Jin, Lihua (2014-10-21)
      Subject to a sufficiently large compression, materials may undergo mechanical instabilities of various types. When the material is homogeneous, creases set in. When the material is a bilayer consisting of a stiff thin film ...
    • Multifunctional three-dimensional macroporous nanoelectronic networks for smart materials 

      Liu, Jessica C; Xie, Chong; Dai, Xiaochuan; Jin, Lihua; Zhou, Wei; Lieber, Charles M. (Proceedings of the National Academy of Sciences, 2013)
      Seamless and minimally-invasive integration of three-dimensional (3D) electronic circuitry within host materials could enable the development of materials systems that are self- monitoring and allow for communication with ...
    • Pattern formation in plastic liquid films on elastomers by ratcheting 

      Huang, Jiangshui; Yang, Jiawei; Jin, Lihua; Clarke, David R.; Suo, Zhigang (Royal Society of Chemistry (RSC), 2016)
      Plastic liquids, also known as Bingham liquids, retain their shape when loads are small, but flow when loads exceed a threshold. We discovered that plastic liquid films coated on elastomers develop wavy patterns under ...
    • Phase-transforming and switchable metamaterials 

      Yang, Dian; Jin, Lihua; Martinez, Ramses; Bertoldi, Katia; Whitesides, George McClelland; Suo, Zhigang (Elsevier BV, 2016)
      This paper demonstrates a new soft structure that uses a meso- or macro-scale elastic instability to generate a shape-memory effect similar to that exhibited by a ferroelastic material. It demonstrates the phase transitions, ...
    • Post-wrinkle bifurcations in elastic bilayers with modest contrast in modulus 

      Auguste, Anesia; Jin, Lihua; Suo, Zhigang; Hayward, Ryan C. (Elsevier BV, 2017)
      Wrinkles, folds, creases and other elastic surface instabilities play a crucial role in many systems in nature and engineering. While surface instabilities of ideal bilayer structures with large contrasts in elastic stiffness ...
    • Ridge Localizations and Networks in Thin Films Compressed by the Incremental Release of a Large Equi-biaxial Pre-stretch in the Substrate 

      Takei, Atsushi; Jin, Lihua; Hutchinson, John Woodside; Fujita, Hiroyuki (Wiley-Blackwell, 2014)
      Two-dimensional ridge structures are induced by equi-biaxial compression with large equi-biaxial pre-stretch in a thin film by using a micro-fluidics technique. Whereas wrinkles tend to be uniformly distributed, ridges are ...
    • Robotic Tentacles with Three-Dimensional Mobility Based on Flexible Elastomers 

      Martinez, Ramses V.; Branch, Jamie L.; Fish, Carina R.; Jin, Lihua; Shepherd, Robert F.; Nunes, Rui M. D.; Suo, Zhigang; Whitesides, George McClelland (Wiley-Blackwell, 2013)
      Soft robotic tentacles that move in three dimensions upon pressurization are fabricated by composing flexible elastomers with different tensile strengths using soft lithographic molding. These actuators are able to grip ...
    • The role of substrate pre-stretch in post-wrinkling bifurcations 

      Auguste, Anesia; Jin, Lihua; Suo, Zhigang; Hayward, Ryan C. (Royal Society of Chemistry (RSC), 2014)
      When a stiff film on a soft substrate is compressed, the surface of the film forms wrinkles, with tunable wavelengths and amplitudes that enable a variety of applications. As the compressive strain increases, the film ...
    • Smoothening creases on surfaces of strain-stiffening materials 

      Jin, Lihua; Suo, Zhigang (Elsevier BV, 2015)
      When an elastic block (e.g., an elastomer or a soft tissue) is compressed to a critical strain, the smooth surface of the block forms creases, namely, localized regions of self-contact. Here we show how this instability ...