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dc.contributor.authorMao, Xiaoming
dc.date.accessioned2018-05-23T21:18:06Z
dc.date.available2018-05-23T21:18:06Z
dc.date.issued2018-04-19
dc.identifier.urihttp://hdl.handle.net/1853/59717
dc.descriptionPresented at the Symposium on Soft Matter Forefronts, April 19, 2018, from 8:30 a.m.-9:10 a.m. at the Marcus Nanotechnology Building, Rooms 1116-1118, Georgia Tech.en_US
dc.descriptionChairs: Michael Tennenbaum & Alberto Fernandez-Nieves (Georgia Tech).en_US
dc.descriptionXiaoming Mao is with the University of Michigan.en_US
dc.descriptionRuntime: 31:22 minutes
dc.description.abstractWhen conventional brittle materials break, long cracks form due to stress focusing at crack tips: a phenomenon explained by Griffith in the 1920s. In this talk, we will discuss two types of systems where the fracturing process is “unconventional”. The first type are fiber networks. Using simulations we found that stress concentration never occurs in these networks. Instead, the network enters a steady state where force chains break and reform, leading to a divergent length scale. The second type are Maxwell lattices with domain walls hosting topologically protected states of self stress. Our simulations showed that stress and bond breaking events are concentrated on these domain walls, even in presence of cracks and deep into the nonlinear process of fracturing. We discuss how these ideas can be used in designing metamaterials that are protected against crack formation.en_US
dc.description.sponsorshipGeorgia Institute of Technology. College of Sciencesen_US
dc.description.sponsorshipGeorgia Institute of Technology. Institute for Materialsen_US
dc.description.sponsorshipGeorgia Institute of Technology. Parker H. Petit Institute for Bioengineering and Bioscienceen_US
dc.description.sponsorshipGeorgia Institute of Technology. School of Materials Science and Engineeringen_US
dc.description.sponsorshipGeorgia Institute of Technology. School of Physicsen_US
dc.description.sponsorshipAmerican Physical Societyen_US
dc.description.sponsorshipExxon Mobil Corporationen_US
dc.description.sponsorshipNational Science Foundation (U.S.)en_US
dc.format.extent31:22 minutes
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectCracksen_US
dc.subjectFiber networksen_US
dc.subjectFracturingen_US
dc.subjectMaxwell latticesen_US
dc.titleFracturing of Marginally Stable Structures: Fiber Networks and Topological Metamaterialsen_US
dc.typePresentationen_US
dc.typeVideoen_US
dc.contributor.corporatenameGeorgia Institute of Technology. Center for the Science and Technology of Advanced Materials and Interfacesen_US
dc.contributor.corporatenameUniversity of Michiganen_US


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