Results 61 to 70 of about 60,794 (221)

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

Advanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani, Surabhi Nadigotti, Erfan Fatehi, Derek Aranguren van Egmond, Behnam Ashrafi   +4 more
wiley   +1 more source

Influences of Compression Ratios on Sound Absorption Performance of Porous Nickel–Iron Alloy

Metals, 2018
The improvement of sound absorption performance of porous metal is a focus of research in the field of noise reduction. Influences of compression ratios on sound absorption performance of a porous nickel–iron (Ni–Fe) alloy were investigated.
Panfeng Bai, Xinmin Shen, Xiaonan Zhang, Xiaocui Yang, Qin Yin, Anxin Liu   +5 more
doaj   +1 more source

Ultra-Thin Metasurface-Based Absorber of Low-Frequency Sound With Bandwidth Optimization

Frontiers in Materials, 2021
We report, both theoretically and experimentally, a type of ultra-thin metasurface-based low-frequency sound absorber with bandwidth optimization. Such a metasurface unit consists of an ultrathin resonator (thickness∼1/90 wavelength) with a circular hole
Yi-jun Guan, Yi-jun Guan, Yi-jun Guan, Yong Ge, Hong-xiang Sun, Hong-xiang Sun, Shou-qi Yuan, Yun Lai, Xiao-jun Liu, Xiao-jun Liu   +9 more
doaj   +1 more source

On the Rigidity and Mechanical Behavior of Triply Periodic Minimal Surfaces‐Based Lattices: Insights from Extensive Experiments and Simulations

Advanced Engineering Materials, EarlyView.
This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle, Humberto Terrones, Carlos González   +2 more
wiley   +1 more source

3D‐Printed Lattice Structures for Sound Absorption: Current Progress, Mechanisms and Models, Structural‐Property Relationships, and Future Outlook

Advanced Science
The reduction of noises, achieved through absorption, is of paramount importance to the well‐being of both humans and machines. Lattice structures, defined as architectured porous solids arranged in repeating patterns, are emerging as advanced sound ...
Xinwei Li, Jun Wei Chua, Xiang Yu, Zhendong Li, Miao Zhao, Zhonggang Wang, Wei Zhai   +6 more
doaj   +1 more source

Sustainable waste cotton and pigeon pea stalk fibers composite materials for acoustics and thermal properties

Journal of Engineered Fibers and Fabrics, 2023
This study focuses on the development and characterization of pigeon pea stalk/cotton fibers mixed with a blend ratio of 50/50, 70/30, 30/70, 60/40, 100/0 waste cotton and 0/100 waste pea stalk composites are equipped with a compression molding system ...
Veeraprabahar Jawahar, Mohankumar Gabriel, Sakthivel Santhanam, Senthil Kumar Selvaraj   +3 more
doaj   +1 more source

Acoustic Power Absorption and its Relation with Vector Magnetic Field of a Sunspot [PDF]

, 2010
The distribution of acoustic power over sunspots shows an enhanced absorption near the umbra--penumbra boundary. Earlier studies revealed that the region of enhanced absorption coincides with the region of strongest transverse potential field. The aim of this paper is to (i) utilize the high-resolution vector magnetograms derived using Hinode SOT/SP ...
arxiv   +1 more source

Acoustic Absorption Coefficients at High Frequencies [PDF]

The Journal of the Acoustical Society of America, 1949
The measurement of the acoustic absorption coefficient by a steady state method was carried out at frequencies of 9, 20, and 30 kc for seven different materials. This involved the construction of a sound chamber with facilities for creating a diffuse sound field and a sample area where materials could be mounted.
openaire   +2 more sources

Low‐Velocity Penetration Impact Behavior of Triply Periodic Minimal Surface Strut‐Based Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS)‐based lattices are gaining attention for their multifunctional properties in applications as aeronautics and automotive, which involve low‐velocity impact loading. This work evaluates the low‐velocity penetration impact behavior of five distinct TPMS architectures.
Lucía Doyle, Javier García‐Molleja, Carlos González   +2 more
wiley   +1 more source

Design of periodic foam structures for acoustic applications: Concept, parametric study and experimental validation

Materials & Design, 2019
Reticulated foams are widely used in noise control applications. However, difficulties in controlling the foaming process makes it difficult to control the microstructure and consequently the absorption characteristics of stochastic foams.
Sagar Deshmukh, Harshavardhan Ronge, Sripriya Ramamoorthy   +2 more
doaj