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Related Concept Videos

Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
Stress: General Loading Conditions01:15

Stress: General Loading Conditions

To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Principal Stresses in a Beam01:11

Principal Stresses in a Beam

In prismatic beams subject to arbitrary transverse loading, It is essential to analyze the interaction between shear forces and bending moments in order to understand stress distribution and ensure structural integrity. The highest normal or bending stress occurs at the outer fibers of the beam, decreasing linearly to zero at the neutral axis. In contrast, shear stress peaks at the neutral axis and diminishes toward the outer surfaces.
Analyzing principal stresses is crucial, especially in...

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Related Experiment Video

Updated: Jun 13, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Stress in optical waveguides. 2: Fibers.

P K Bachmann, W Hermann, H Wehr

    Applied Optics
    |May 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Investigated stress in doped optical fibers. Drawing conditions like speed and temperature did not affect stress profiles, confirming a theoretical model for fiber stress properties.

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    Last Updated: Jun 13, 2026

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    Published on: March 20, 2017

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    Design and Fabrication of an Optical Fiber Made of Water
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    Area of Science:

    • Materials Science
    • Optoelectronics
    • Glass Science

    Background:

    • Optical fibers are crucial for telecommunications and sensing.
    • Understanding residual stress in optical fibers is vital for performance and reliability.
    • Germanium dioxide (GeO2) and Fluorine (F) doping influence fiber properties.

    Purpose of the Study:

    • To investigate the stress properties of GeO2- and F-doped optical fibers.
    • To determine the influence of drawing conditions on stress profiles.
    • To validate a generalized theoretical model for optical fiber stress.

    Main Methods:

    • Optical fiber drawing under varied conditions (force, speed, temperature).
    • Measurement of stress profiles in doped optical fibers.
    • Comparison of experimental results with a generalized theoretical model.

    Main Results:

    • Stress profiles were investigated for GeO2- and F-doped optical fibers.
    • Experimental results showed excellent agreement with the generalized theoretical model.
    • For constant drawing forces, stress profiles were independent of drawing speed and temperature.

    Conclusions:

    • The total stress in optical fibers is a summation of preform stress and drawing-induced stress.
    • Drawing conditions (speed, temperature) do not alter stress profiles at constant drawing force.
    • The generalized theoretical model accurately predicts stress properties in doped optical fibers.