Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

50.1K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
50.1K
Modes of Standing Waves - I01:03

Modes of Standing Waves - I

3.3K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
3.3K
Damped Oscillations01:07

Damped Oscillations

6.4K
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
6.4K
Types of Damping01:20

Types of Damping

7.1K
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
7.1K
Sound Waves: Interference00:53

Sound Waves: Interference

4.1K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
4.1K
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

5.9K
When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
5.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Fatigue Crack Length Estimation Using Acoustic Emissions Technique-Based Convolutional Neural Networks.

Sensors (Basel, Switzerland)·2026
Same author

New Method of Impact Localization on Plate-like Structures Using Deep Learning and Wavelet Transform.

Sensors (Basel, Switzerland)·2025
Same author

Exploring Piezoelectric Actuation towards Its Applications in Laser Powder Bed Fusion Additive Manufacturing.

Sensors (Basel, Switzerland)·2024
Same author

Piezoelectric Transducer-Based Structural Health Monitoring.

Sensors (Basel, Switzerland)·2024
Same author

Delamination Depth Detection in Composite Plates Using the Lamb Wave Technique Based on Convolutional Neural Networks.

Sensors (Basel, Switzerland)·2024
Same author

Piezoelectric Wafer Active Sensor Transducers for Acoustic Emission Applications.

Sensors (Basel, Switzerland)·2023

Related Experiment Video

Updated: Nov 7, 2025

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

959

High-Order Wave-Damage Interaction Coefficients (WDIC) Extracted through Modal Decomposition.

Hanfei Mei1, Victor Giurgiutiu1

  • 1Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA.

Sensors (Basel, Switzerland)
|April 30, 2021
PubMed
Summary

This study introduces a novel method for extracting wave-damage interaction coefficients (WDIC) using modal decomposition. This technique accurately models wave scattering and mode conversion from damage, enhancing structural health monitoring.

Keywords:
finite element modelingguided waveshigh-order modesmodal decompositionmode conversionscatteringwave damage interaction

More Related Videos

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
09:43

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Published on: August 13, 2019

9.6K
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
11:00

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Published on: July 19, 2016

11.8K

Related Experiment Videos

Last Updated: Nov 7, 2025

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

959
Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
09:43

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Published on: August 13, 2019

9.6K
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
11:00

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Published on: July 19, 2016

11.8K

Area of Science:

  • Structural Health Monitoring
  • Wave Propagation
  • Materials Science

Background:

  • Guided wave propagation is crucial for detecting damage in structures.
  • Accurate modeling of wave scattering and mode conversion is essential for damage characterization.
  • Existing methods may struggle with high-order wave modes and complex damage interactions.

Purpose of the Study:

  • To develop and validate a new technique for extracting high-order wave-damage interaction coefficients (WDIC).
  • To model the frequency and direction-dependent scattering and mode conversion phenomena of guided waves interacting with damage.
  • To provide an efficient method for calculating WDIC using modal decomposition.

Main Methods:

  • Utilized modal decomposition for extracting complex-valued, frequency and direction-dependent WDIC.
  • Employed harmonic analysis of a local finite element model (FEM) with non-reflective boundaries (NRB).
  • Considered simultaneous scattering and independent propagation of all possible wave modes.

Main Results:

  • Successfully extracted WDIC for a through-thickness hole and a sub-surface crack in an aluminum plate.
  • Demonstrated the capability to describe scattered wave amplitude and phase across various frequencies and directions.
  • Validated the extraction of WDIC for high-order modes appearing at higher frequencies.

Conclusions:

  • The proposed modal decomposition technique efficiently extracts high-order WDIC.
  • The extracted WDIC accurately models guided wave interaction with damage, including scattering and mode conversion.
  • This method offers a robust approach for advanced structural health monitoring applications.