Self‐Sensing Paper Actuators Based on Graphite–Carbon Nanotube Hybrid Films
Published in Advanced Science: https://onlinelibrary.wiley.com/doi/full/10.1002/advs.201800239
research
No motor, no battery, no problem
New robot concept uses responsive materials to swim through water
When we think of robots, we normally think of motors and batteries and electronics, but engineers at Caltech and ETH Zurich have created a swimming robot that's powered by material deformation. That means it's made using materials that change shape in response to temperature swings, and that deformation pushes the device through water.
Line and Point Defects in Nonlinear Anisotropic Solids
In this paper, we present some analytical solutions for the stress fields of nonlinear anisotropic solids with distributed line and point defects.
£1 million awarded for 5 year project for virtual testing of components
Simpleware software user Dr. Llion Evans of Swansea University and the Culham Centre for Fusion Energy has received £1 million in funding for a five-year project into virtual testing of new components. Funded by the Engineering and Physical Sciences Research Council (EPSRC), the research looks at how image-based simulation using 3D X-ray imaging can virtually evaluate manufactured components.
Learn more about this project
Wiki surface - an open access encyclopedia of surfaces
Dear Mechanicians,
a new project at the IMT School for Advanced Studies Lucca (Lucca, Italy) has just been launched to create the first open access database of rough surfaces from nature and technology, see:
http://musam.imtlucca.it/wikisurf.html
People are invited to contribute to the database by providing images of surfaces acquired using experimental techniques, as well as the corresponding elevation data field (raw x,y,z data in columns).
Aging-dependent strain localization in amorphous glassy polymers: from necking to shear banding
This study investigates the influence of physical aging on the deformation behaviors of poly(ethylene terephthalate)-glycol. The polymers are subjected to a quenched and an annealed heat treatment, followed by deformation in tension. The digital image correlation (DIC) is used to capture the surface strain. The DIC results show that the deformation localization occurs in the post-yield strain softening region. The quenched and annealed polymers exhibit different localization types, representing as necking for quenched polymers and shear banding for annealed polymers.
Journal Club for May 2018: Icephobic Materials
Icephobic Materials
Yizhi Zhuo, Jianying He
NTNU Nanomechanical Lab, Norwegian University of Science and Technology (NTNU)
A Free Primer on the Kinematics of Discrete Elastic Rods
A new book, A Primer on the Kinematics of Discrete Elastic Rods, has just been published by Springer and is freely accessible to faculty and students at
The first experimental evidence of the Ziegler destabilization paradox
A “flutter machine” is introduced for the investigation of a singular interface between the classical and reversible Hopf bifurcations that is theoretically predicted to be generic in nonconservative reversible systems with vanishing dissipation. In particular, such a singular interface exists for the Pflüger viscoelastic column moving in a resistive medium, which is proven by means of the perturbation theory of multiple eigenvalues with the Jordan block.
Novel silicon nanowire-based 3-dimensional devices and systems
A new approach for monolithic integration of silicon nanowires with 3-dimensional devices (for more details of the project see:https://www.researchgate.net/project/Novel-silicon-nanowire-based-3-dim…).