Purdue University School of Mechanical Engineering

Lab News



PS Lab Welcomes Wabash

Herrick Laboratories welcome Wabash CEO Brent Yeagy and leadership for discussing collaborative research on a tractor-trailer that can harvest electricity from its own vibrations. During the visit, members of the PS Lab demonstrated their work on energy harvesting from bistable lattice, bistable laminates and origami-inspired foldable wings.

 




Presentations at the APS March Meeting

Members of the Programmable Structures Lab delivered several presentations on topics such as mechanologic, origami-inspired wing design, and bistable metamaterials at the APS March Meeting 2024. Prof. Arrieta delivered an oral presentation titled “Viscoelastic mechano-bits for increased storage”. Clark Addis gave an oral presentation on “Origami-inspired camber design in rigidized membrane-like wings.” Sneha Srikanth presented on “Dynamics of bistable metamaterials under impulsive excitation.”

 




Poster session at Katalyst 2024

Seungbin Kwon, an undergraduate student of PS Lab, presented his collaborative work titled "Design and Manufacture of Magnetically Responsive Membranes" at a poster session during Katalyst 2024: Korean-American Mentorship and Leadership Immersion for Young Scientists and Technologists in Atlanta, Georgia. He attended the conference as a recipient of the Purdue EURO Undergraduate Travel Grant.

 




Presentation on Robotics at the Gordon Research Conference

Professor Arrieta presented at the Mechanical Engineering Department graduate seminar a talk titled “Embodied intelligence in reconfigurable structures from geometry & constraints”.

 




AIAA American Society for Composites Student Paper Award

Congrats to the authors: K. Boddapati, Juan C. Osorio, A. F. Arrieta for receiving the 2024 AIAA American Society for Composites Student Paper Award for the paper: On the loss of stability of bistable laminates due to clamping. AIAA SciTech Forum, Orlando, Florida, USA, January 7–12, 2024.
You can find the paper here: https://arc.aiaa.org/doi/10.2514/6.2024-1333

 




AIAA Adaptive Structures Best Paper Award

Congrats to the authors: D. M. Boston, A. F. Arrieta for receiving the 2023 AIAA Adaptive Structures Best Paper for the paper: Homogenization model for multistable honeycomb metastructures exhibiting beam-like behavior. AIAA SciTech Forum, National Harbor, Maryland, USA, January 23–27, 2023.
You can find the paper here: https://arc.aiaa.org/doi/abs/10.2514/6.2023-1394

 




Enabling novel multistable origami by connecting branches

Origami offers the unique opportunity to bring together art, biology, mathematics, and engineering. In our recent paper led by Clark Addis on “Connecting the branches of multistable non-Euclidean origami by crease stretching,” we show how bioinspired extensible creases allow for accessing folding regimes not available with traditional origami. Localizing flexibility to the creases is particularly relevant for providing freer folding paths to Non-Euclidean origami systems with rigid facets, which allows the use of inextensible materials such as semiconductors. You can find the paper here: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.108.055001

 


PhD Defense

Salvador Rojas
Thesis title: MULTISTABLE BIOINSPIRED SPRING ORIGAMI FOR REPROGRAMMABLE STRUCTURES AND ROBOTICS
We want to congratulate Salvador Rojas for successfully defending his PhD thesis "Multistable Bioinspired Spring Origami for Reprogrammable Structures and Robotics". Sal’s research focused on the mechanics of spring origami, establishing a mechanism to reconfigure origami structures after fabrication, and their applications for soft robotics.

 




Invited graduate seminar at the Mechanical Engineering Department, University of California, Merced

Professor Arrieta presented at the Mechanical Engineering Department graduate seminar a talk titled “The mechanics and applications of hierarchically multistable metastructures: from shape adaptation to information processing”.

 




Invited seminar at the Civil, Architectural, and Environment Engineering Department, University of Texas, Austin

Professor Arrieta presented a seminar at the Civil, Architectural, and Environment Engineering Department titled “Hierarchically multistable metastructures for reconfiguration and mechanologic”.

 




Invited graduate seminar at the Mechanical Engineering Department, University of Texas, San Antonio

Professor Arrieta presented at the Mechanical Engineering Department graduate seminar a talk titled “Hierarchically multistable metastructures: mechanics and applications”.

 


PhD Defense

Aman Thakkar
Thesis title: LEVERAGING MULTISTABILITY TO DESIGN RESPONSIVE, ADAPTIVE, AND INTELLIGENT MECHANICAL METAMATERIALS
We want to congratulate Aman Thakkar for successfully defending his PhD thesis "Leveraging Multistability to Design Responsive, Adaptive, and Intelligent Mechanical Metamaterials." Aman's work shows how multistable elements can be utilized to encode responsiveness and adaptability to realize intelligent mechanical metamaterials.

 


AFRL Regional Hub Network Award

Dr. Andres F. Arrieta and Dr. Rodney Trice from Purdue University and collaborators from AFRL, Canopy Aerospace Inc., and Stratolaunch LLC. have been awarded funding through the AFRL Regional Hub Network for their project “Multistable Structures Design Tool for Morphing Hypersonic Waveriders”.

 




ASME Best Paper Award in Bioinspired Materials and Systems

Congrats to the authors* K. S. Riley, S. Koner, J. C. Osorio, Y. Yu, H. Morgan, J. P. Udani, S. A. Sarles, A. F. Arrieta for receiving the 2023 ASME Best Paper Award in Bioinspired Materials and Systems for the paper: Neuromorphic metamaterials for mechanosensing and perceptual associative learning. Advanced Intelligent Materials, 2200158, 2022.
*K. S. Riley, S. Koner, J. C. Osorio are equal-contributing 1st authors.
You can find the paper here: https://doi.org/10.1002/aisy.202200158

 




ASME SMASIS Division-Level Best Paper Award in Mechanics and Material Systems

Congrats to the authors* K. S. Riley, S. Koner, J. C. Osorio, Y. Yu, H. Morgan, J. P. Udani, S. A. Sarles, A. F. Arrieta for receiving the 2023 ASME SMASIS Division-Level Best Paper Award in Mechanics and Material Systems for the paper: Neuromorphic metamaterials for mechanosensing and perceptual associative learning. Advanced Intelligent Materials, 2200158, 2022.
*K. S. Riley, S. Koner, J. C. Osorio are equal-contributing 1st authors.
You can find the paper here: https://doi.org/10.1002/aisy.202200158

 


PhD Defense

Matt Boston
Thesis title: ENABLING WING MORPHING THROUGH COMPLIANT MULTISTABLE STRUCTURES
We want to congratulate Matt Boston for successfully defending his PhD thesis "Enabling Wing Morphing Through Compliant Multistable Structures." Matt's work explored how wing morphing can be enhanced by leveraging multistable structures applied to both camber and spanwise shape change.

 


NIH Exploratory/Developmental Research Grant Award

Dr. Buganza (ME), Dr. Arrieta (ME) and Dr. Craig Goergen (MBE) have been awarded the NIH Exploratory/Developmental Research Grant Award (R21) for their project titled “Development of remotely actuated deformable membranes for in situ mechanical testing of soft tissue.” This project aims to develop a new type of device and data-driven algorithm for characterization of tissue mechanical behavior and residual stress in situ. This can potentially open new possibilities to monitoring tissue mechanics in animal models of disease.

 


PhD Defense

Katie Riley
Thesis title: STRUCTURES WITH MEMORY: PROGRAMMED MULTISTABILITY AND INHERENT SENSING AND COMPUTATION
We want to congratulate Katie Riley for successfully defending her PhD thesis "Structures with Memory: Programmed Multistability and Inherent Sensing and Computation." Katie's research investigated mechanical memory in structures to enable inherent sensing and computation with minimal electronics.

 


Best student paper award at IEEE conference (FLEPS)

Katie Riley was awarded the Best Student Paper award at the 2023 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). The award is for the paper: Flexible mechanical sensors with time-dependent, viscoelastic responses

 


Bistable Embrace at the Boiler Gold Rush

Dr. Arrieta and his team introduced the freshmen class of 2022 to the mechanics of bistable materials through a fun interactive installation at the Boiler Gold Rush. Several students played with the installation -- a large metamaterial sheet consisting of bistable domes, which when pushed in or out caused the sheet to morph and 'embrace' the user. Learn more about the bistable embrace on our outreach webpage. Lead artist: Wan Kyn Chan

 


Andres Arrieta has been named the winner of the 2021 Emerging Leader Award in Smart Materials and Structures for the article: Topological wave energy harvesting in bistable lattices.

 


Morphing wing tested in wind tunnel

Most airplane wings use hydraulic motors to change their shape and control their flight. But associate professor Andres Arrieta is investigating a simpler kind of “morphing” wing, using bi-stable structures to switch a wing’s shape and stiffness with a minimum amount of energy.

 


Ride the wave: soliton resonance may enable mechanical energy harvesting

Energy harvesting – creating electrical energy from cars driving over a road, or people walking on a bridge – has long been theorized as a potential source of sustainable electricity. But due to the physical properties of those vibrations, implementing the process has been largely infeasible. Now, Andres Arrieta has proposed using metamaterials as physical frequency converters, potentially bringing us a step closer to harvesting the energy of those vibrations.

 


Oddly satisfying metamaterials

When you press the dimpled circles on a fountain drink lid, they become either convex or concave. This demonstrates bistability: materials or structures that have two stable states. Prof. Andres Arrieta has demonstrated a patterned sheet of these domes that forms an energy-storing skin, strong enough to perform mechanical tasks, and even programmable to store and process data like a mechanical computer.

 


Shape-shifting furniture inspired by Venus flytrap

"Flat pack furniture" may soon have a new meaning. Purdue researchers have developed a 3D printing method that emulates the switchable bistability of the Venus flytrap plant. This breakthrough in material science may soon inspire flat objects that snap into their final stable form with very little external force.

 


Andres Arrieta has received the CAREER award from the National Science Foundation, their most prestigious award in support of early-career faculty. His project is "The Mechanics of Hierarchically Multistable Metastructures."


Using Nature to Bridge the Gap Between Hard and Soft Robots: Professor Arrieta’s podcast interview was featured on Creator’s Cloud Summer 2019.


Wan Kyn Chan conference publication in 126 th ASEE Annual Conference and Exposition on A Preliminary Exploration of Student Attitudes about a Continuous Grade Point Average Scheme.


Salvador Rojas published a column in the LA Times: "Op-Ed: I got through college the hard way — and I’m grateful for it"


Purdue mechanical engineering undergraduate Katie Martin completed a successful Maymester research project with the Programmable Structures Lab. She investigated pre-strain generated by FDM 3D printing.


Lingwei Meng started an internship on Battery Production with Beijing Benz Automotive Co., Ltd. (BBAC) to support the startup of the overall structure of the new battery production line.


Matt Boston has been working as a Summer Research Fellow at the Air Force Research Laboratory in Dayton, Ohio. Matt started in May working on a LabVIEW integration system for a quasi-static load test, combining sensor inputs for data collection and feedback control of motors and hydraulic actuators.


Wan Kyn Chan graduated with a Bachelor of Science in Mechanical Engineering.


Senior Design team, Chameleon, consisting of Mechanical Engineering seniors Wan Kyn Chan, Jaehong Jung, Bryan Gho, Hilman Ramlan and Paul Castillo forwarded research conducted by the Programmable Structures Lab by introducing thermal actuation methods for mechanical color changing hierarchical structures in senior design project. Potential applications include adaptive and smart environments and product and architectural design.


Janav Udani started his Research Internship position at Facebook.


Professor Arrieta delivered a talk as part of Caltech’s Mechanical and Civil Engineering Seminar Series, entitled “Programmable Structures: Shape and Property Reconfiguration.”


Professor Arrieta delivered a seminar to mechanical engineering students at Clemson University, entitled “Programmable Structures: Shape and Property Reconfiguration.”


Lab alum Riccardo Caruso graduated with his Laurea Magistrale (Master of Science) in Mechanical Engineering from Politecnico Di Milano. He is now working as a project engineer at Tenova, a metals and mining company. Congratulations, Riccardo!


The journal paper Filtered Mechanosensing Using Snapping Composites with Embedded Mechano-Electrical Transduction, by Hortense Le Ferrand, André R. Studart, and Andres F. Arrieta, was recently published in ACS Nano. This research was also featured by Engadget: “Researchers say 'spidey senses' could help self-driving vehicles avoid hazards” and Purdue News: “‘Spidey senses’ could help autonomous machines see better.” Congratulations!


Myungwon Hwang completed his PhD Preliminary Examination for his research work, titled "Nonlinear dynamics in lattices of bistable elements.". Congratulations Won!


Dr. Andres Arrieta and Salvador Rojas represented the Programmable Structures Lab at the 2019 SPIE Smart Structures and Nondestructive Evaluation Conference in Denver, Colorado. They presented latest results from the group's work on energy harvesting from lattice structures and actuation of grippers based on bioinspired spring origami.


A paper titled "Analytical Modeling of Multi-sectioned Bi-stable Composites: Stiffness Variability and Embeddability" authored by Janav Udani and Dr. Andres Arrieta has been published in Composite Structures. The paper presents a modelling and analysis technique to study the static behavior and structural response of bi-stable composites that are employed as members of larger morphing structures. URL: https://www.sciencedirect.com/science/article/pii/S026382231834282X?via%3Dihub


Katie Riley attended the Women Empowered in STEM Conference at the University of Illinois at Urbana-Champaign on February 23rd.


Professor Hortense Le Ferrand's Laboratory for Dense Multifunctional Composites has officially opened at Nanyang Technological University in Singapore. Hortense was a postdoctoral researcher at PSL before joining NTU. Congratulations, Hortense! Webpage - https://www.ntu.edu.sg/home/hortense


Tanmay Das, Ben Anthony, and Dillon Zadoks are doing undergraduate research in the lab this semester. Tanmay is working on developing g-code for curvilinear printing of self-shaping structures. Ben and Dillon are working on 3D printed programmable structures. Welcome to PSL!


Christian Grantz accepted a full-time position at Northrop Grumman Innovation Systems starting post-graduation in July 2019. He will be working in the Loads and Environments group, performing dynamic analysis for multi-stage rocket motors. Congratulations Christian!


Jose Rivas and Dr. Andres Arrieta represented the Programmable Structures Lab at the AIAA SciTech conference in San Diego, California. They presented latest research results in morphing structures with relevance to adaptable aircraft wings and wind turbine blade sections.


The lab's work on bio-inspired origami has received further mainstream attention! The article recently published in Science featuring the incredible folding properties of the earwig was itself featured in an article by National Geographic, titled, "An ode to earwig wings, which break standard laws of origami." Link: https://t.co/pRSmsjyDN2


Abhsihek Chopra, an undergraduate alum from the lab has been awarded the AIAA GNC Undergraduate Conference Experience Travel Scholarship for attending AIAA SciTech 2019. Congratulations Abhishek!


Professor Andres Arrieta delivered an invited seminar at the University of Minnesota entitled "Multifunctional Programmable Structures From Bioinspiration: Self-Shaping, Responsiveness & Stiffness Adaptation." Link: http://www.me.umn.edu/videoclips/Andres_Arrieta_101718_720p.mov


Dr. Hortense Le Ferrand, a former postdoctoral researcher in the lab, published the review "External fields for the fabrication of highly mineralized hierarchical architectures" in the Journal of Materials Research. Link: https://www.cambridge.org/core/journals/journal-of-materials-research/article/external-fields-for-the-fabrication-of-highly-mineralized-hierarchical-architectures/80699B506B4669E63D42FE9851E381E9


Myungwon Hwang and Professor Andres Arrieta published the paper "Solitary waves in bistable lattices with stiffness grading: Augmenting propagation control" in Physical Review E. In this paper, small perturbation in the form of intersite or on-site stiffness grading is introduced to bistable lattices, significantly altering the propagation property of transition waves. Link: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.98.042205


Professor Andres Arrieta and Myungwon Hwang delivered presentations at the International Conference on Adaptive Structures and Technologies (ICAST2018) in Seoul, South Korea. Professor Arrieta's presentation was entitled "Structural Response of Morphing Ribs with Selective Compliance from Multistability." Myungwon's presentation was "Energy harvesting from input-independent transition waves in bistable lattices with elastic interactions," and he won a best oral presentation award. Congratulations, Myungwon!


Katie Riley presented a poster at the Amelia Earhart Summit at the Purdue University School of Aeronautics and Astronautics, entitled "Switchable bistability in 3D printed shells with spatially distributed pre-stress" by Katherine S. Riley, Karl Jin Ang, Jakob Faber, and Andres F. Arrieta.


Lab alum Dr. Hortense Le Ferrand has been selected to receive the 2018 MRS Bulletin Postdoctoral Publication Prize. This award recognizes "intellectual merit and ability to demonstrate effective writing and communications through an interest in scientific publications." Congratulations, Hortense! Link: https://www.cambridge.org/core/journals/mrs-bulletin/information/mrs-bulletin-postdoctoral-publication-prize


Katie Riley and Karl Jin Ang won the ASME SMASIS Best Student Paper Award for "Switchable Bistability in 3D Printed Shells with Bio-inspired Architectures and Spatially Distributed Pre-stress". The paper was also co-authored by Dr. Jakob Faber and Dr. Andres Arrieta. Congratulations to the team!


"Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements" by Katherine S. Riley, Hortense Le Ferrand, and Andres F. Arrieta was published in Smart Materials and Structures. Inspired by the Venus flytrap, the paper investigates how to model and manufacture magnetically aligned reinforcements in bilayer composites to create bistability and spatially tailored deformations. Link - http://iopscience.iop.org/article/10.1088/1361-665X/aad797


Katie Riley, Matt Boston and Dr. Andres Arrieta represented the Programmable Structures Lab at the ASME SMASIS conference in San Antonio, Texas. They presented on latest research results in morphing structures, switchable bi-stability and energy harvesting.


Dr. Andres Arrieta received the prestigious ASME Gary Anderson Early Achievement Award for his “notable contributions [and] impact on the fields of Adaptive Structures and Material Systems.” Congratulations, Dr. Arrieta! Read more at Purdue Mechanical Engineering (https://engineering.purdue.edu/ME/News/andres-arrieta-recognized-for-adaptive-structures) and ASME ( https://www.asme.org/events/smasis/program/awards)


Myungwon Hwang presented on "Input-independent Dynamics in Bistable Lattices for Energy Harvesting" at the IDETC/CIE conference in Quebec City, Quebec, Canada. The International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (IDETC/CIE) highlights emerging technologies within the field of product design, manufacturing, and integration of information within product life cycles.


We would like to welcome Salvador Rojas - Salvador is joining the Programmable Structures Lab to pursue his PhD degree. He is the recipient prestigious George Washington Carver Fellowship and has completed his BS and MS in Mechanical Engineering from California State University, Los Angeles.


Members of the Programmable Structures Lab attended the 4th Midwest Mechanics of Materials and Structures workshop held at Illinois Institute of Technology. Katie Riley presented a poster, titled "Bio-inspired distributed pre-stress from magnetically aligned microstructures for fast morphing," and won a third-place award in poster presentation.


Abhishek Chopra presented his work on the "Design of selectively compliant morphing wind turbine blade section using bistable laminate for passive load alleviation" at the 2018 SURF research symposium held at Armstrong hall of engineering. This presentation marked the successful completion of his summer research program.


We would like to welcome Riccardo Caruso from Politecnico di Milano who is a visiting scholar working on his Master’s thesis in our lab!


As summer comes to a close, the lab has been very busy in preparation for the Fall Semester. MSAAE student Matt Boston successfully defended his thesis, “Demonstrator for selectively compliant morphing systems with multi-stable structures.” Congratulations, Matt!


Katie Riley successfully defended her master’s thesis on Bi-stable Snapping Structures with Spatially Tailored Deformations via Distributed Pre-strain on 12th July 2018. Congratulations Katie!


Lab alum Dr. Hortense Le Ferrand has accepted a position as an assistant professor at Nanyang Technological University Singapore in the Schools of Mechanical & Aerospace Engineering and Materials Science & Engineering. Congratulations, Hortense! If you are interested in working with Hortense on interdisciplinary research in bioinspired composites, electrical ceramics, and advanced manufacturing, details about open positions can be found by reaching her at Hortense@ntu.edu.sg.


Dr. Hortense Le Ferrand, a former post-doc in the Programmable Structures Lab, has been awarded the prestigious Materials and Processes award for the best interdisciplinary PhD thesis at ETH Zurich. Congratulations to Hortense on this great achievement!


Matt Boston has been offered a Teaching Assistantship for the Purdue EPICS program. EPICS is an academic program in which teams of Purdue students partner with local not-for-profit community organizations to provide technology solutions. Congratulations Matt!


Dr. Andres Arrieta was invited to give a lecture at Politecnico di Milano on 25th May 2018. The topic of his talk was "Programmable Structures: Property-Form-Function, a Route to Multifunctionality".


Abhishek Chopra has joined the Programmable Structures Lab for the summer as a SURF undergraduate fellow. He is a senior at Rutgers and over the summer, he will be testing applying his skillset to investigate Passive Load Alleviation for Wind Turbine Blades. Welcome to the team Abhishek!


Congratulations Liang Yan for receiving his MSME degree on 11th of May. Liang conducted a special project within the Programmable Structures Lab entitled: “Analysis and Homogenization of Angled Double Corrugations for Morphing Skins”. Liang is returning to China to continue his professional career.


"Bioinspired Spring Origami", the paper authored by Jakob A. Faber, Andres F. Arrieta, and André R. Studart published in Science has been recognized in a Nature news article, "Wing origami" released on 23rd March 2018. URL: https://www.nature.com/articles/d41586-018-03775-4


Lingwei Meng has been accepted to the MS in Mechanical Engineering program at Purdue and will continue his Master's thesis research at the Programmable Structures Lab. Conglatulations Lingwei!


Katie Riley has been awarded NSF Graduate Research Fellowship. Conglatulations Katie!


Dr. Andres F. Arrieta was interviewed on a radio talk show hosted by Julio Sáchez Cristo of W Radio (Colombian radio network). The interview mainly revolved around the recent publication "Bioinspired spring origami", in the Science Magazine. URL: http://play.wradio.com.co/audio/3729333/


A paper entitled "Bioinspired spring origami" has been published in Science. The paper is based on a collaborative project with the Complex Materials lab at ETH Zurich and is authored by Jakob A. Faber, Andres F. Arrieta, and André R. Studart. URL: http://science.sciencemag.org/content/359/6382/1386


Dr. Andres F. Arrieta and Katie Riley attended AFOSR BRI and Technical Forum held at Stanford university.


Katie Riley and Myungwon Hwang participated in the Midwest SEM student conference held at Purdue university. Katie presented her research on "Modeling of bio-inspired, snapping shells with magnetically aligned reinforcements," and Won talked about "Invariant transition waves in bistable lattices for energy harvesting". Katie also served as a session chair at the conference.


SPIE Smart Structures logo Members from the Programmable Structures Lab presented three technical papers at the 2018 SPIE Smart Structres + Nondestructive Evaluation Conference held in Denver from 4th-8th March 2018. Dr. Andres Arrieta and Janav Udani were in attendance at the conference.




Lingwei Meng has been awarded the H. William Bottomley Research Scholarship for the Spring 2018 Semester. Congratulations Lingwei!


A paper entitled "Input-Independent Energy Harvesting in Bistable Lattices from Transition Waves", authored by Myungwon Hwang and Andres F. Arrieta has been published in Scientific Reports. URL: https://www.nature.com/articles/s41598-018-22003-7.


The publication entitled “Efficient potential well escape for bi-stable Duffing oscillators", has been published in Nonlinear Dynamics, URL: https://link.springer.com/article/10.1007/s11071-018-4107-3. The paper is authored by Janav. P. Udani and Andres F. Arrieta.


Dr. Andres Arrieta and Katie Riley attended the Gordon Research Conference on Multifunctional Materials and Structures: Bridging the Gap Between Biological and Synthetic Systems in Ventura, CA. They presented the following two posters: 1) Bio-inspired distributed pre-stress from magnetically aligned microstructures for fast morphing by Katherine S. Riley, Hortense Le Ferrand, and Andres F. Arrieta 2) Multi-stable shape programmable shells from 3D printed induced pre-stress by Katherine S. Riley, Karl J. Ang, Jakob Faber, and Andres F. Arrieta


Matt Boston presented a paper titled, “Design of Monolithic Selectively Compliant Morphing Structures with Locally Bistable Elements,” authored by him and Dr. Andres F. Arrieta at SciTech 2018, hosted by the American Institute of Aeronautics and Astronautics


The publication entitled “Sustaining high-energy orbits of bi-stable energy harvesters by attractor selection", has been published in Applied Physics Letters in the November 20th issue, URL: https://doi.org/10.1063/1.5000500. The paper is authored by Janav. P. Udani and Andres F. Arrieta.


The publication entitled “Dynamics and control of twisting bi-stable structures, has been published online in Smart Materials and Structures on the 30th of October, 2017. URL: https://doi.org/10.1088/1361-665X/aa96d3. The papers is authored by: Andres F. Arrieta, Valentin Van Gemmeren, Aaron J. Anderson, Paul M. Weaver.


The ASME Technical Committee on Adaptive Systems Dynamics and Control recognize with the 2017 Best Paper Award in Dynamics and Control of Adaptive Structures the paper entitled “Novel Chiral Structure with Tailored Mechanical Response Exploiting Elastic Instabilities”, by Falk Runkel, Giulio Molinari, Andres F. Arrieta, Paolo Ermanni. This paper was published in the proceedings of SMASIS2016. The award was presented during SMASIS conference in September 22nd, 2017.


The Programmable Structures Group participated in the ASME Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS) with three talks:

The conference was held in spectacular Snowbird Utah, September 10-13, 2017.


Dr. Andres F. Arrieta presented at the The 4th Multifunctional Materials for Defense Workshop. His talk was entitled: “On-demand Stiffness Selectivity for Morphing Systems”. Arlington, VA, 28 August-1 September 2017.


Dr. Andres F. Arrieta presented an invited seminar at the Bernal Institute Research Forum. His talk was entitled: Exploiting nonlinearity in compliant hierarchical structures: from morphing wings to metamaterials, University of Limerick, July 26th, 2017


Dr. Andres F. Arrieta was invited to teach in the Summer Schools Series at Escuela Colombiana de Ingenieria (ECI), Bogota, Colombia, a 3-day course on Smart Materials and Programmable Structures. Bogota, Colombia, July 13-15, 2017.