14 papers · ranked by Valyu relevance
Lishuai Jin, Antonio Elia Forte, Bolei Deng, Ahmad Rafsanjani + 1 more
'Katia Bertoldi'] Kirigami, the Japanese art of paper cutting, has recently enabled the design of stretchable mechanical metamaterials that can be easily realized by embedding arrays of periodic cuts into an elastic sheet. Here, we exploit kirigami principles to design inflatables that can mimic target shapes upon…
Ryuma Niiyama, Young ah Seong, Yoshihiro Kawahara, Yasuo Kuniyoshi
Inflatables are safe and lightweight structures even at the human scale. Inflatable robots are expected to be applied to physical human-robot interaction (pHRI). Although active joint mechanisms are essential for developing inflatable robots, the existing mechanisms are complex in structure and it is difficult to…
Eduard Rohan, Vladimír Lukeš
The paper presents a new type of weakly nonlinear two-scale model of inflatable periodic poroelastic structures saturated by Newtonian fluids. The periodic microstructures incorporate fluid inclusions connected to the fluid channels by admission and ejection valves respected by a 0D model. This induces a nonlinearity…
William G. Davids, Haim Abramovich
In this paper, the mechanics of inflatable drop-stitch panels are investigated, including the impact of large shear deformations, nonlinearity due to wrinkling of the panel skin that occurs under net compressive strain, work done by the confined internal air, and the effect of the drop-stitch yarns on the panel skin…
Masato Tanaka, S. Macrae Montgomery, Liang Yue, Yaochi Wei + 3 more
'Yuyang Song' 'Tsuyoshi Nomura' 'H. Jerry Qi'] Turing patterns are self-organizing stripes or spots widely found in biological systems and nature. Although inspiring, their applications are limited. Inflatable shape-morphing structures have attracted substantial research attention. Traditional inflatable structures use…
Emmanuel Siéfert, Étienne Reyssat, José Bico, Benoît Roman
Lack of stiffness often limits thin shape-shifting structures to small scales. The large in-plane transformations required to distort the metrics are indeed commonly achieved by using soft hydrogels or elastomers. We introduce here a versatile single-step method to shapeprogram stiff inflated structures, opening the…
Katsu Uchiyama, Ryuma Niiyama
— Exploration of various applications is the frontier of research on inflatable robots. We proposed an articulated robots consisting of multiple pneumatic bladder links connected by rolling contact joints called Hillberry joints. The bladder link is made of a double-layered structure of tarpaulin sheet and polyurethane…
P. Sinha, T. Mukhopadhyay
As a consequence of intense investigation on possible topologies of periodic lattices, the limit of specific elastic moduli that can be achieved solely through unit cell-level geometries in artificially engineered lattice-based materials has reached a point of saturation. There exists a robust rationale to involve more…
Hadi Ebrahimi Fakhari, Juan Rosario Barboza, Pezhman Mardanpour, Andrew Adamatzky + 1 more
Origami, the art of paper folding, has long fascinated researchers and designers in its potential to replicate and tap the complexity of nature. In this paper, we pursue the crossing of origami engineering structures and biology, the realm of biologically-inspired origami structures categorized by the two biggest…
Markus Pagitz
During my studies for a PhD at the University of Cambridge I have worked on the development of NASA's superpressure balloons. These balloons can partially replace satellites and serve as platforms for longterm high altitude experiments. The development of this technology started in the 1990s and was severely hindered…
H. J. Kim, Haron Abdel-Raziq, Liu Xiao, A. Y. Siskovic + 3 more
'Sachin Patil' 'Kirstin Petersen' 'Hsuan‐Ling Kao'] Abstract— In this article, we present a mechanism and related path planning algorithm to construct light-duty barriers out of extruded, inflated tubes weaved around existing environmental features. Our extruded tubes are based on everted vine-robots and in this…
Majid Akbarzadeh Khorshidi, Shirsha Bose, Ivor M. Cullen, John Sullivan + 6 more
Inflatable penile prostheses (IPPs) are a critical solution for patients with erectile dysfunction refractory to medical therapy. However, a detailed understanding of their mechanical interaction with penile tissues remains limited. To develop and validate an innovative experimental-computational framework for studying…
Yue Wei, Zhixiang Cai, Ting Yang, Shi Yang + 8 more
Water-in-water (W/W) emulsion provides cytocompatible compartments for cell encapsulation and 3D printing of tissues. Formation of semi-permeable membrane at the W/W interface is critical to entrapment of cells in the droplet phase and supply of nutrients from the continuous phase. However, the adsorption of colloidal…
Ruixin Li, Haorong Chen, Jong Hyun Choi
Deployable geometries are finite auxetic structures that preserve their overall shapes during expansion and contraction. The topological behaviors emerge from intricately arranged elements and their connections. Despite considerable utility of such configurations in nature and in engineering, deployable nanostructures…