Meta-ring for enhancing emission efficiency of omnidirectional SH waves

Kim, Hong Jae; Park, Chung Il; Kim, Kiyean; Kim, Yoon Young

doi:10.1016/j.ijmecsci.2023.108354

Cited by 8 publications

(2 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The transducer output enhancement mechanism used for the case of longitudinal waves was extended to flexural waves (corresponding to the A0 mode), as presented in figure 16(b) [245]. Recently, Kim et al [246] revealed that the same principle could be applied to enhance omnidirectional SH waves (corresponding to the SH0 mode) generated by an MPT in a plate. In this case, a circular ring, called the metamaterial ring (meta-ring), was designed using a T-shaped beam, as shown in figure 16(c).…”

Section: Actuation and Sensingmentioning

confidence: 99%

Elastic metamaterials for guided waves: from fundamentals to applications

Lee,

Kim

2023

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

Guided waves, elastic waves propagating through bounded structures, play a pivotal role in various applications, including ultrasonic non-destructive testing and structural health monitoring. Recently, elastic metamaterials artificially engineered to exhibit physical properties not typically seen in nature have emerged as a ground-breaking approach, heralding a new era in guided wave-based technologies. These metamaterials offer innovative solutions to overcome the inherent constraints of traditional guided wave-based technology. This paper comprehensively reviews elastic metamaterials from their fundamental principles to diverse applications, focusing on their transformative impact in guided wave manipulation.

show abstract

Section: Actuation and Sensingmentioning

confidence: 99%

Elastic metamaterials for guided waves: from fundamentals to applications

Lee,

Kim

2023

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

show abstract

“…To facilitate this investigation, the widely recognized software Comsol Multiphysics 6.1 is employed. Comsol Multiphysics is extensively utilized for predictive analysis in elastic wave propagation systems [52,53] and configurations incorporating intelligent materials [54,55]. The key configuration parameters utilized within the software are as follows: the analyses are conducted within a two-dimensional spatial domain under the plane-stress condition.…”

Section: Conflicts Of Interestmentioning

confidence: 99%

Defect-Band Splitting of a One-Dimensional Phononic Crystal with Double Defects for Bending-Wave Excitation

Jo,

Lee,

Youn

2023

Mathematics

View full text Add to dashboard Cite

Extensive prior research has delved into the localization of elastic wave energy through defect modes within phononic crystals (PnCs). The amalgamation of defective PnCs with piezoelectric materials has opened new avenues for conceptual innovations catering to energy harvesters, wave filters, and ultrasonic receivers. A recent departure from this conventional paradigm involves designing an ultrasonic actuator that excites elastic waves. However, previous efforts have mostly focused on single-defect scenarios for bending-wave excitation. To push the boundaries, this research takes a step forward by extending PnC design to include double piezoelectric defects. This advancement allows ultrasonic actuators to effectively operate across multiple frequencies. An analytical model originally developed for a single-defect situation via Euler–Bernoulli beam theory is adapted to fit within the framework of a double-defect set-up, predicting wave-excitation performance. Furthermore, a comprehensive study is executed to analyze how changes in input voltage configurations impact the output responses. The ultimate goal is to create ultrasonic transducers that could have practical applications in nondestructive testing for monitoring structural health and in ultrasonic imaging for medical purposes.

show abstract

Mechanical effect on skyrmion-skyrmion interaction

Wang,

Kitamura

et al. 2024

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

Meta-ring for enhancing emission efficiency of omnidirectional SH waves

Cited by 8 publications

References 66 publications

Elastic metamaterials for guided waves: from fundamentals to applications

Elastic metamaterials for guided waves: from fundamentals to applications

Defect-Band Splitting of a One-Dimensional Phononic Crystal with Double Defects for Bending-Wave Excitation

Mechanical effect on skyrmion-skyrmion interaction

Contact Info

Product

Resources

About