![]() The researchers will do that by performing 2D and 3D finite element modeling and simulations. The first step to their project, a numerical study, will focus on finding the ideal size and arrangement of holes and their core elements. “We are considering a plate with rods that would act as local resonators, and we are looking into what combination and what geometry of rods will dissipate the incoming energy that is traveling through the plane.” “What we are developing right now is a very simple model,” said Shokouhi. Parisa Shokouhi, principal investigator on the project and associate professor of civil engineering, and Lissenden will use a mixture of numerical and experimental study to evaluate the effectiveness of a proposed metamaterial in filtering, dissipating and averting surface waves caused by natural and man-made sources. Our idea is that if you can dissipate the earthquake before it gets to the structure, then you don't have to design it to resist that ground motion.” “The structural design for earthquakes now requires the whole building to shake, which you can design for, but it's quite an expensive proposition. “The goal of the project is to protect critical structures,” said Cliff Lissenden, professor of engineering science and mechanics. Earthquakes and explosions damage thousands of structures worldwide each year, destroying countless lives in their wake, but a team of researchers at Penn State is examining a completely new way of safeguarding key infrastructure, thanks to a $50,000 Multidisciplinary Research Seed Grant provided by the College of Engineering.
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