Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Clamper Circuit

Clamper Circuit

A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...

Modes of Standing Waves - I

Modes of Standing Waves - I

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 phenomenon...

Modes of Standing Waves: II

Modes of Standing Waves: II

The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end.

Damped Oscillations

Damped Oscillations

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...

Forced Oscillations

Forced Oscillations

When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.

Types of Damping

Types of Damping

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...

You might also read

Related Articles

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

Sort by

Same author

Calorimetric evidence for the existence of an intermediate phase between the ferroelectric nematic phase and the nematic phase in the liquid crystal RM734.

Physical review. E·2024

Same author

Phase transitions study of the liquid crystal DIO with a ferroelectric nematic, a nematic, and an intermediate phase and of mixtures with the ferroelectric nematic compound RM734 by adiabatic scanning calorimetry.

Physical review. E·2023

Same author

Converting sunlight into audible sound by means of the photoacoustic effect: The Heliophone.

The Journal of the Acoustical Society of America·2016

Same author

Determination of thermoelastic material properties by differential heterodyne detection of impulsive stimulated thermal scattering.

Photoacoustics·2015

Same author

Retinoic acid synergizes ATO-mediated cytotoxicity by precluding Nrf2 activity in AML cells.

British journal of cancer·2014

Same author

Antiproliferative effects of phenylaminonaphthoquinones are increased by ascorbate and associated with the appearance of a senescent phenotype in human bladder cancer cells.

Biochemical and biophysical research communications·2013

Search research articles

Related Experiment Video

Updated: Jun 25, 2026

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

Nonlinear modulation of Lamb modes by clapping delamination.

G Shkerdin¹, C Glorieux

¹Departement Natuurkunde, Laboratorium voor Akoestiek en Thermische Fysica, KU Leuven, Leuven, Belgium.

The Journal of the Acoustical Society of America

|February 12, 2009

Summary

Nonlinear Lamb waves reveal spectral enrichment in delaminated bilayers. This nonlinear harmonic generation can guide nondestructive testing of composite materials in pipelines and tanks.

More Related Videos

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

Published on: September 20, 2017

Related Experiment Videos

Last Updated: Jun 25, 2026

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

Published on: September 20, 2017

Area of Science:

Solid Mechanics
Materials Science
Nondestructive Testing

Background:

Bilayered materials with interlayer delaminations present challenges in structural integrity assessment.
Lamb waves are effective for probing internal defects, but their nonlinear interactions require detailed modeling.

Purpose of the Study:

To model the nonlinear interaction between a probing Lamb wave and a delaminated bilayer interface.
To investigate the effect of dynamically changing contact conditions on wave propagation and spectral characteristics.
To explore the potential of nonlinear harmonic generation for nondestructive testing (NDT) of bilayer defects.

Main Methods:

A quasistationary approach is employed to model the nonlinear interaction.
Analysis focuses on mode conversion coefficients and spectral enrichment due to cross-modulation.
Dynamical normal displacement is investigated for different incident waves, bilayer properties, and defect parameters.

Main Results:

Contact condition evolution significantly impacts mode conversion coefficients.
Cross-modulation between probing and modulating waves leads to spectral enrichment.
Defect size and contact modulation influence the observed nonlinear phenomena.

Conclusions:

Nonlinear Lamb wave interactions provide insights into delamination dynamics.
Spectral enrichment is a key indicator of defect presence and contact evolution.
Results offer a parametric guide for using nonlinear harmonic generation in NDT of rubber-steel composites and similar structures.