Related Experiment Video

Updated: Jul 3, 2026

A Stable Phantom Material for Optical and Acoustic Imaging
04:54

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Quantifying the through-thickness asymmetry of sound absorbing porous materials

Y Salissou, R Panneton

    The Journal of the Acoustical Society of America
    |August 7, 2008
    PubMed

    More Related Videos

    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing09:39

    Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

    Published on: June 28, 2024

    The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe08:53

    The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

    Published on: December 3, 2016

    Related Concept Videos

    Sound as Pressure Waves01:17

    Sound as Pressure Waves

    Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
    The pressure fluctuation depends on the difference in displacements between the successive points in the...
    Poisson's Ratio01:23

    Poisson's Ratio

    Poisson's ratio is a material property that indicates their stress response. It explains the connection between the elongation or compression a material undergoes in the direction of an applied force and the contraction or expansion it experiences perpendicular to that force. When a slender bar is loaded axially, it stretches in the direction of the force and contracts laterally. Poisson's ratio is the negative ratio of this lateral contraction to the axial elongation. The negative sign ensures...
    Deformations in a Transverse Cross Section01:21

    Deformations in a Transverse Cross Section

    When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
    As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
    Bending of Members Made of Several Materials01:11

    Bending of Members Made of Several Materials

    In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
    Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
    Thin-Walled Hollow Shafts01:15

    Thin-Walled Hollow Shafts

    In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution of...
    Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

    Unsymmetric Loading of Thin-Walled Members: Problem Solving

    The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
    To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
    Next, calculate the moments of...