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Microscopic Mechanisms and Acoustic Emission Characteristics of Sandy Mudstone under Different Water Saturations
In order to study the damage mechanism of surrounding rocks under water-rock coupling, an experimental study on the microscopic law of water...
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Ultrasonic vibration-induced severe plastic deformation of Cu foils: effects of elastic-plastic stress wave bounce, acoustic softening, and size effect
In this work, the unique plastic deformation behavior of T2 rolled copper foils under ultrasonic impact (UI) and ultrasonic rolling (UR) has been...
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Ultra-broad bandgap induced by hybrid hardening and softening nonlinearity in metastructure
Metamaterials are artificial microstructured media that exhibit unique effective material properties and can be tailored to achieve negative...
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A revised Johnson–Cook model comprised of acoustic plasticity for non-oriented silicon steel under transverse ultrasonic vibration
Establishing a constitutive model that can accurately describe material plastic flow behavior in the ultrasonic energy field is the foundation that...
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Effect of Loading Rate on the Progressive Damage and Crack Classification of Granite Based on Acoustic Emission Technique
In this study, we investigated the strength, deformation, failure, and acoustic emission (AE) characteristics of granite during the five uniaxial...
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New Trends in Acoustic Testing in Buildings
Acoustic testing techniques are traditionally and most often used to characterise construction materials and construction elements, either to certify...
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Mechanical and Acoustic Properties of Ceramsite Sound Absorbing Boards with Gradient Structure
In this work, ceramsite was utilized to fabricate the sound-absorbing boards, in which two types of structure were considered, specifically,...
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Acoustic emission of lattice structures under cycling loading relates process parameters with fatigue properties
Metamaterials, especially lattice structures, are of great interest for many application areas such as aerospace, automotive and medicine due to...
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A new hydro-mechanical coupling constitutive model for brittle rocks considering initial compaction, hardening and softening behaviors under complex stress states
After the excavation of underground engineering, the failure and instability of surrounding rock under hydro-mechanical coupling conditions is a...
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Acoustic Nondestructive Characterization of Metal Pantographs for Material and Defect Identification
Mechanical metamaterials offer an approach to design materials beyond bulk properties by changing their geometry. Due to the complex architecture,...
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4H silicon carbide bulk acoustic wave gyroscope with ultra-high Q-factor for on-chip inertial navigation
Inertial navigation on a chip has long been constrained by the noise and stability issues of micromechanical Coriolis gyroscopes, as silicon, the...
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Spectro-spatial Analysis of Nonlinear Wave Propagation Behaviors in Damped Acoustic Metamaterial Systems
BackgroundAcoustic metamaterials exhibit many novel wave propagation behaviors that can be designed to control and guide wave propagation in a...
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A versatile apparatus for assessing the shear behaviour of geotechnical interfaces coupled with imaging and acoustic capabilities
This paper presents a versatile interface direct shear test apparatus developed for systematically investigating the shear behaviour of geotechnical...
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Research on new wave behavior and mechanisms in nonlinear diatomic acoustic metamaterials with linear dam**
Different from the undamped counterpart, nonlinear elastic waves exhibit different wave motion behavior and mechanisms when propagating in damped...
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The influence of acoustic antifriction on heat generation and material flow in ultrasonic-assisted friction stir welding
To get deep insight into the interaction mechanism of ultrasound with the plastically deformed metal in the ultrasonic-assisted friction stir welding...
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Achieving consistency of flexible surface acoustic wave sensors with artificial intelligence
Flexible surface acoustic wave technology has garnered significant attention for wearable electronics and sensing applications. However, the...
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Review of the Application of Acoustic Emission Technology in Green Manufacturing
Green manufacturing is an advanced technology that aims to improve resource utilization, reduce energy consumption, and prevent environmental...
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Modeling of ultrasonic vibration-assisted micromachining using the particle finite element method
When metals and alloys are exposed to ultrasonic vibrations (UV), a softening behavior occurs, caused by the phenomenon of acousto-plasticity. To...
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Vibration and acoustic radiation characteristics of simply supported curved plate in thermal environment
The thermal environment has a tremendous impact on many properties of wall panel structures. To study the vibration and acoustic properties of curved...
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Multifocal skull-compensated transcranial focused ultrasound system for neuromodulation applications based on acoustic holography
Transcranial focused ultrasound stimulation is a promising therapeutic modality for human brain disorders because of its noninvasiveness, long...
