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Related Concept Videos

Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

Strain energy quantifies the energy stored within a material due to deformation under loading conditions, a fundamental concept in materials science and engineering. The strain energy can be modeled when a material is subjected to axial loading with uniformly distributed stress. In this scenario, the stress experienced by the material is the internal force divided by the cross-sectional area, and the strain induced is directly proportional to this stress through the modulus of elasticity.
If...
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...
Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
Measurements of Strain01:27

Measurements of Strain

Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...
Strain and Elastic Modulus01:15

Strain and Elastic Modulus

The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...

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Related Experiment Video

Updated: Jul 12, 2026

High-pressure, High-temperature Deformation Experiment Using the New Generation Griggs-type Apparatus
12:30

High-pressure, High-temperature Deformation Experiment Using the New Generation Griggs-type Apparatus

Published on: April 3, 2018

GEOPHYSICS: Enhanced: A Strained Earth, Past and Present.

J G Ramsay

    Science (New York, N.Y.)
    |August 31, 2007
    PubMed
    Summary

    New methods allow scientists to measure deformation rates in mountain-building regions. This technique helps understand past and present plate tectonics and complex geological structures.

    Area of Science:

    • Geology
    • Tectonophysics
    • Geodynamics

    Background:

    • Plate tectonics causes deformation in Earth's crust along converging and transforming plate boundaries.
    • Quantifying the rates of this deformation, especially in complex mountain-building regions, presents significant challenges.

    Purpose of the Study:

    • To highlight a novel technique for evaluating deformation rates in tectonic settings.
    • To provide a method for analyzing complex deformation patterns in past and present mountain ranges.

    Main Methods:

    • The study focuses on a new technique developed by Müller et al. for measuring deformation rates.
    • This technique is applicable to geological regions with intricate deformation patterns.

    Main Results:

    More Related Videos

    Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
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    Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

    Published on: August 5, 2016

    Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
    10:36

    Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

    Published on: May 20, 2018

    Related Experiment Videos

    Last Updated: Jul 12, 2026

    High-pressure, High-temperature Deformation Experiment Using the New Generation Griggs-type Apparatus
    12:30

    High-pressure, High-temperature Deformation Experiment Using the New Generation Griggs-type Apparatus

    Published on: April 3, 2018

    Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
    06:55

    Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

    Published on: August 5, 2016

    Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
    10:36

    Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

    Published on: May 20, 2018

    • The highlighted technique offers a solution for overcoming the difficulty in evaluating deformation rates.
    • It provides a valuable tool for understanding the dynamics of mountain building.

    Conclusions:

    • The new technique facilitates a more accurate assessment of deformation rates associated with plate tectonics.
    • This advancement aids in comprehending the evolution of complex geological structures in mountain-building areas.