A light-powered ultralight tensegrity robot with high deformability and load capacity
In our recent work, we construct a hybrid light-powered tensegrity robot composed of both hard and soft materials. The tensegrity robot shows great scalability, deployability, impact-mitigation capability, high load capacity, and can be precisely controlled to move on multiterrains. It is an example of combining interesting structures and interesting actuating materials in soft robotics.
Abstract:
MIT Short Course: Predictive Multiscale Materials Design: June 10-14, 2019
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PhD Position at McGill University in Architected Multifunctional Materials
One PhD position is available for Fall 2019 in the Advanced Multifunctional and Multiphysics Metamaterials Lab (AM3L) in the Bioresource Engineering Department of McGill University. The research topic is on the area of Mechanics of Architected Multifunctional Materials. Theoretical and computational multiscale modelling along with experimental (3D printing and characterization) studies will be conducted for multiphysics analysis of architected cellular solids. The candidate will work under the supervision of Dr. Hamid Akbarzadeh at McGill University.
PhD position available at Purdue
Multiple PhD positions available at Purdue. The general topic of the project is computational modeling of delivery of injectable medicines.
I am looking for candidates who can join immediately.
On the wrinkling and restabilization of highly stretched sheets
Wrinkles are commonly observed in uniaxially stretched rectangular sheets with clamped-clamped boundaries, and can disappear upon excess stretching. Here we explore this wrinkling and restabilization behavior both analytically and numerically. We find that Poisson’s ratio plays a crucial role in the wrinkling and restabilization behavior. Smaller Poisson’s ratio makes later onset of wrinkling, lower amplitude and earlier disappearance of wrinkles.
Review: fatigue of hydrogels
Here is our review article on fatigue of hydrogels. This is the first review of the subject. We review fatigue as any failure of material under prolonged static or cyclic loads. The paper starts with fundamentals, and covers a broad field, yet leaving a lot of interesting questions to be answered. The paper links the chemistry and mechanics of hydrogels.
The publisher now provides 50 days’ free access to the paper.
Multiple Doctoral Positions in Multiscale Modeling of Friction and Adhesion
Adhesion and friction involving fluids or viscous matter, such as encountered in adhesives or in lubrication, are processes that determine everyday life, from human interaction with the environment to the function and reliability of machinery.
Phd / PostDoc position Additive Manufacturing - Polymers
A postdoc or a PhD position are available immediately at the Laboratoire de Mecanique des Solides (Solid Mechanics) at https://www.polytechnique.edu/. The project is focused on understanding the impact of UV polymerization on the constitutive behaviour of printed polymer composites. The position is part of an ongoing collaboration with a german academic partner. The offers are detailed both in english and french on the job site of the CNRS (www.cnrs.fr):
Multifunctional “Hydrogel Skins” on Diverse Polymers with Arbitrary Shapes
In this paper, we introduce a new simple yet effective strategy to form "hydrogel skins" on polymer-based medical devices with arbitrary shapes. Hydrogel skins can convert any surface of polymer devices into robust, wet, soft, slippery, antifouling, and ionically conductive without affecting the original properties and geometries.
Abstract