Mechanical and acoustical properties as a research area focuses on characterizing and modeling how materials and structures respond to mechanical loads and acoustic waves, including stress–strain behavior, elasticity, viscoelasticity, damping, wave propagation, impedance, and sound absorption or transmission. It integrates solid mechanics, continuum mechanics, and acoustics to understand couplings between structural dynamics and sound fields, often using experimental techniques such as dynamic mechanical analysis, ultrasonic testing, and impedance tube measurements, alongside analytical and numerical methods (e.g., finite element and boundary element modeling). This research underpins the design and optimization of materials and systems for vibration control, noise reduction, ultrasonic devices, and acoustic metamaterials.
In a recent study published in Nature Communications, a research team led by Prof. Guo Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences developed nanomechanical resonators ...
Nanomaterials
Nov 29, 2022
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Additive manufacturing (AM) using two-photon polymerization lithography (TPP) has increased in usage in industry and research. Currently, a major constraint of TPP in general and specifically of the material IP-Q (Nanoscribe ...
Nanomaterials
Aug 12, 2022
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131
Piezoelectric materials can convert mechanical energy to electrical energy, and vice versa. In recent years, there has been growing interest in the search for two-dimensional (2D) layered piezoelectrics. Such layered van ...
Nanophysics
Aug 5, 2022
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157
Aerogel materials serve a vital role as protective materials needed for many fields, including as electromagnetic interference shielding material for 5G technology, thermally insulating material in high-rise buildings and ...
Nanomaterials
Jul 19, 2022
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176
The vibrational modes of nanomechanical resonators are analogous to different notes of a guitar string and have similar properties such as frequency (pitch) and lifetime. The lifetime is characterized by the quality factor, ...
Nanophysics
May 12, 2022
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Have you ever wondered if bacteria make distinctive sounds? If we could listen to bacteria, we would be able to know whether they are alive or not. When bacteria are killed using an antibiotic, those sounds would stop—unless ...
Bio & Medicine
Apr 18, 2022
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The safety glass used in the windshields of limousines and military vehicles needs to be hard, strong and shatter-proof, but also thin—both for visibility and to reduce its weight, a particularly important feature for aerospace ...
Nanophysics
Mar 31, 2022
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To meet the demand for strong and tough transparent thin films for sustainable applications, Dr Sunanda Roy from GLA University India has led a multi-national team to successfully develop a novel transparent thin film made ...
Nanomaterials
Jan 27, 2022
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229
As robotic devices such as artificial prosthetics and human-computer interfaces are increasingly integrated into society, researchers have been looking more deeply into the sensitivity of the devices that serve the same function ...
Nanomaterials
Dec 3, 2021
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166
The triboelectric effect is a phenomenon where a charge is generated on two dissimilar materials when the materials are moved apart after being in contact with each other. Triboelectric nanogenerators (TENGs) use this effect ...
Nanomaterials
Nov 15, 2021
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