We use cookies to enhance your experience. By continuing to browse this site you agree to our use of cookies. More info.
Most people would prefer a mattress to a brick wall as a brick wall is rigid and does not absorb shocks or vibrations well, whereas a mattress is soft and works well as a shock absorber. Anchor
However, both of these qualities are sometimes required when creating materials. Materials should absorb vibrations well while being stiff enough not to collapse under pressure. A team of researchers from the University of Amsterdam’s Institute of Physics has now discovered a way to create materials that can possess each of these qualities.
Typically, a material’s two characteristics are mutually exclusive: it is either stiff or absorbs vibrations well—but rarely both. However, materials that are both rigid and absorb vibrations would have a plethora of potential applications ranging from nano-scale design to aerospace engineering.
A group of researchers from the University of Amsterdam has now discovered a way to make materials that are stiff but still absorb vibrations—and, more significantly, can be kept incredibly light-weight.
We discovered that the trick was to use materials that buckle, like thin metal sheets. When put together in a clever way, constructions made out of such buckled sheets become great absorbers of vibrations—but at the same time, they preserve a lot of the stiffness of the material they are made out of. Moreover, the sheets do not need to be very thick, and so the material can be kept relatively light.
David Dykstra, Study Lead Author, University of Amsterdam
The investigators extensively researched the properties of these buckled materials and discovered that they all demonstrated this magical combination of stiffness and the ability to dissipate vibrations.
Because known materials lack the desired combination of properties, the new lab-made materials (or metamaterials) have a wide range of possible applications at a wide range of sizes. The possible applications vary from meter-sized (aerospace, automotive, and many other civil designs) to microscale (applications like microscopes or nanolithography).
Humans like to build things—small things and big things—and we almost always want these structures to be light. If that can be done with materials that are both stiff and good at shock-absorbing, many existing designs can be improved and many new designs become possible. There really is no end to the possible applications!
David Dykstra, Study Lead Author, University of Amsterdam
A rubber metamaterial sample with a mass on top is subjected to excitations: first with increasing frequencies and then with decreasing frequencies. When subjected to a large excitation, the sample buckles. Buckling is more pronounced with a decreasing frequency. Video Credit: University of Amsterdam.
A metal metamaterial sample with a mass on top is subjected to excitations: first with increasing frequencies and then with decreasing frequency. When subjected to a large excitation, the sample buckles. Buckling is more pronounced with a decreasing frequency. Video Credit: University of Amsterdam.
Dykstra, D. M. J., et al. (2023). Buckling Metamaterials for Extreme Vibration Damping. Advanced Materials. doi.org/10.1002/adma.202301747.
Source: https://iop.uva.nl
Do you have a review, update or anything you would like to add to this news story?
In this interview, AZoM speaks to LECO's Andrew Storey about glow discharge spectrometry and the opportunities offered by LECO's GDS950.
At the Advanced Materials Show 2023, AZoM sat down with Tom Warwick, Director and one of the two Founders of Blue Scientific, to discuss the rapid growth of the business and its ambitions for the future.
Phil Levesque & Charlie Pryor
In this interview, AZoM speaks to Instron's Phil Levesque and Charles Pryor about the importance of mechanical testing for electric vehicle batteries.
The XRF Scientific Orbis laboratory jaw crusher range features dual-action fine crushers, with jaw efficiency allowing samples to be reduced by up to 55 times their original size.
The DynaPro Zetastar Static Light Scattering Detector performs simultaneous dynamic and static light scattering or dynamic and electrophoretic light scattering (DLS/SLS/ELS) measurements all within one instrument.
The Thermo Scientific™ ARL iSpark™ Plus Series OES Metal Analyzer is the perfect instrument for every process from routine elemental analysis to heavy-duty metals R&D.
The global semiconductor market has entered an exciting period. Demand for chip technology is both driving the industry as well as hindering it, with current chip shortages predicted to last for some time. Current trends will likely shape the future of the industry, which is set to continue to show
The primary distinction between graphene-based batteries and solid-state batteries lies in the composition of either electrode. Although the cathode is commonly changed, carbon allotropes can also be employed in fabricating anodes.
In recent years, the IoT is rapidly being introduced into almost all sectors, but it has particular importance in the EV industry.
AZoM.com - An AZoNetwork Site
Industy Damper Owned and operated by AZoNetwork, © 2000-2023