[CCoE Notice] (Changed to virtual zoom,10:00 am) TcSUH Co-Sponsored: Spatial variations in programmable meta-materials * Friday, Feb. 4 * Tian “Tim” Chen * The University of Houston *

[Knudsen, Rachel W]

This event will now be held on Zoom. Additional details are below. Thank you.



                                                             ***** Seminar *****

Department of Electrical and Computer Engineering

Materials Engineering Program

Texas Center for Superconductivity at Univ. of Houston

Center for Integrated Bio and Nano Systems

  10:00 a.m., Feb. 4, 2022

Join Zoom Meeting

https://urldefense.com/v3/__https://zoom.us/j/845619943?pwd=QlZvYUV6M2dxNDkvNWxBd3F2YzdJZz09__;!!LkSTlj0I!AX3WBjd-fbOVtlyFOmHAM28XJHw72urh8CMFtk8RlcnfEc51iXTzuEtJb5nEFGhEz2DyOFtcKMZFFBxF9zxRgDqE$ <https://urldefense.com/v3/__https://zoom.us/j/845619943?pwd=QlZvYUV6M2dxNDkvNWxBd3F2YzdJZz09__;!!LkSTlj0I!RY36v8rc0HmWFLiTTBHvwLA0IazEOlQxdQZC1QwuRSdYLO0ZgFA27Y6PryVryUiq6I-G0w$>



Meeting ID: 845 619 943

Password: 016104

   Spatial variations in programmable meta-materials

                                  Tian “Tim” Chen
                             Kamal Salama assistant professor
                          Department of Mechanical Engineering
The University of Houston

Abstract:  Metamaterials are designed to realize exotic physical properties through the geometric arrangement of their underlying structural layout. The design of metamaterials often imposes the following constraints a priori: 1) unit cells must be identical and can be tiled indefinitely, 2) once fabricate, the properties of the metamaterial shouldn’t change. In this talk, I explore the rich design space afforded when we relax these constraints, and discuss how we encode spatial variation and/or on-demand programmability. In Bistable Auxetic Surface Structures, we aim to design a meta-surface with spatially varying unit cells that when deployed, transforms to a desired target shape. The geometric mapping between 3D and 2D exploits the unique characteristics of isotropic deformation of certain Kirigami geometries. The resulting surfaces are stable after deployment and can be applied to a number of engineering applications at different length scales. Next, to address mechanical reprogrammability, we draw analogy to that of digital devices in which each unit can be written to or read from on-the-fly. Specifically, we propose a mechanical metamaterial with stable memory at the unit-cell level. Our design comprises an array of physical binary elements with clearly delineated writing and reading phases. Each m-bit can be independently and reversibly switched between two stable states using magnetic actuation. We expect this design paradigm to facilitate the development of novel forms of metamaterials.

 [cid:af9d4a4a-64f8-4f6e-a5e9-b1c3aa0f6f44]

Short Bio: Tian “Tim” Chen is the Kamal Salama assistant professor at the University of Houston. Since joining UH in Sept. 2021, he established the Architected Intelligent Matter Laboratory to explore the notion of intelligent metamaterials. In particular, he aims to design materials that can either transfer their shape or their physical characteristics on-demand. With such metamaterials, his goal is to provide a bridge between passive materials and powered robotics. Thus far, he has received a grant from AMI at UH, as well as three PURS scholars. His read Engineering Science as an undergraduate at the University of Toronto, M.Sc. in civil engineering from Delft University of Technology, and PhD in mechanical engineering from ETH Zurich where he received the ETH Medal in 2018. He was most recently a post-doctoral scientist at EPFL.

Please contact Dr. <mailto:yyao4 at uh.edu> Jiming Bao (jbao at uh.edu) if you want to meet with the speaker.


If you no longer wish to receive the announcements from the IBNS News Listserver, please email "SIGNOFF IBNSNEWS" in the body of the message (leave subject line empty) to <listserv at listserv.uh.edu<mailto:listserv at listserv.uh.edu>>. The email needs to originate from the email address, which the Listserver sends the announcements to. You can also send an email to <nanomag at uh.edu<mailto:nanomag at uh.edu>> with the request to subscribe to or unsubscribe from the list.






-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://Bug.EGR.UH.EDU/pipermail/engi-dist/attachments/20220203/50649bae/attachment-0001.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 257835 bytes
Desc: image.png
Url : http://Bug.EGR.UH.EDU/pipermail/engi-dist/attachments/20220203/50649bae/attachment-0001.png