design brief - Steven Keating's

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morphable material What if a material’s stiffness and geometry can be digitally controlled? Jammable materials offer the ability to rapidly tune a system’s stiffness, opening a new world of design possibilities. Granular materials can be put into a jammed state through the application of pressure to achieve a pseudo-solid material with controllable rigidity and geometry. This phenomenon occurs in granular materials when the individual particles are packed together, causing the friction and Van der Waals forces between grains to increase. The prototypes in this study have utilized vacuum pumps to create jammed states through the weight of the atmosphere on the jammed particles. Depending on the level of vacuum, the rigidity of the pseudo-solid system can be manipulated. While jamming principles have been long known, large-scale applications of jammed structures have not been significantly explored. As well, potential specific applications are highlighted and demoed. Such applications range from a morphable chair, to a flexible vice, to artistic free-form sculpting. 4
Seen above is the morphable chair which can be rapidly switched from a very flexible state (top left), to a sturdy, weight-support state (bottom left) through the jamming effect. Other designs created using this effect include a universal joint with tuneable stiffness (bottom left) and a jammable vice (bottom right) for holding objects during machining. These simple systems are extremely cost-effective, novel, and offer significant potential in a range of applications. A provisional patent has been filed for several of these designs. 5
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design brief - Steven Keating's

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