{"id":757,"date":"2018-07-02T07:24:53","date_gmt":"2018-07-02T11:24:53","guid":{"rendered":"https:\/\/www.bu.edu\/moss\/?p=757"},"modified":"2018-07-10T07:27:15","modified_gmt":"2018-07-10T11:27:15","slug":"paper-bioinspired-electrically-activated-soft-bistable-actuators","status":"publish","type":"post","link":"https:\/\/www.bu.edu\/moss\/2018\/07\/02\/paper-bioinspired-electrically-activated-soft-bistable-actuators\/","title":{"rendered":"Paper: Bioinspired Electrically Activated Soft Bistable Actuators"},"content":{"rendered":"<p><strong>Bioinspired Electrically Activated Soft Bistable Actuators<\/strong><br \/>\nHuiqi Shao, Shuzhen Wei, Xin Jiang, Douglas P. Holmes, and Tushar K. Ghosh<br \/>\n<em>Advanced Functional Materials<\/em>, 18029999, (2018).<\/p>\n<p>Movement and morphing in biological systems provide insights into the materials and mechanisms that may enable the development of advanced engineering structures. The nastic motion of plants in response to environmental stimuli, e.g., the rapid closure of the Venus flytrap&#8217;s leaves, utilizes snap\u2010through instabilities originating from anisotropic deformation of plant tissues. In contrast, ballistic tongue projection of chameleon is attributed to direct mechanical energy transformation by stretching elastic tissues in advance of rapid projection to achieve higher speed and power output. Here, a bioinspired trilayered bistable all\u2010polymer laminate containing dielectric elastomers (DEs) is reported, which double as both structural and active materials. It is demonstrated that the prestress and laminating strategy induces tunable bistability, while the electromechanical response of the DE film enables reversible shape transition and morphing. Electrical actuation of bistable structures obviates the need for continuous application of electric field to sustain their transformed state. The experimental results are qualitatively consistent with our theoretical analyses of prestrain\u2010dependent shape and bistability.<\/p>\n<p><strong>Link<\/strong>: <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adfm.201802999\">https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adfm.201802999<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bioinspired Electrically Activated Soft Bistable Actuators Huiqi Shao, Shuzhen Wei, Xin Jiang, Douglas P. Holmes, and Tushar K. Ghosh Advanced Functional Materials, 18029999, (2018). Movement and morphing in biological systems provide insights into the materials and mechanisms that may enable the development of advanced engineering structures. The nastic motion of plants in response to environmental [&hellip;]<\/p>\n","protected":false},"author":9428,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/posts\/757"}],"collection":[{"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/users\/9428"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/comments?post=757"}],"version-history":[{"count":1,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/posts\/757\/revisions"}],"predecessor-version":[{"id":758,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/posts\/757\/revisions\/758"}],"wp:attachment":[{"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/media?parent=757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/categories?post=757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bu.edu\/moss\/wp-json\/wp\/v2\/tags?post=757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}