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

Flexural Stress01:16

Flexural Stress

440
When analyzing bending in symmetric members, it's crucial to understand how stresses distribute when subjected to bending moments. This stress distribution is effectively described by applying fundamental mechanics and material science principles, particularly Hooke's Law for elastic materials.
Hooke's Law states that within the material's elastic limits, stress is directly proportional to strain. In a member experiencing a bending moment, the strain at any point is relative to...
440
Three-Dimensional Force System01:30

Three-Dimensional Force System

2.4K
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
2.4K
Fiber Reinforced Concrete01:22

Fiber Reinforced Concrete

173
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
173
Bending and Torsional Moments01:20

Bending and Torsional Moments

4.7K
Bending and torsional moments are two fundamental concepts in structural engineering. They play an important role in understanding the behavior of materials and structures under different loading conditions.
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
4.7K
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

441
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
441
Impact Loading on a Cantilever Beam01:13

Impact Loading on a Cantilever Beam

570
The analysis of a cantilever beam with a circular cross-section subjected to impact loading at its free end illustrates the conversion of potential energy from a dropped object into kinetic energy, which is then absorbed by the beam as strain energy. This process is crucial for understanding how materials behave under dynamic loads, which is important in fields such as construction and aerospace.
When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
570

You might also read

Related Articles

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

Sort by
Same author

Heat-triggered phospholipid flipping stabilizes plasma membrane fluidity.

Nature·2026
Same author

Integrating contrast-enhanced ultrasound to optimize margin delineation in Mohs micrographic surgery for primary dermatofibrosarcoma protuberans: a retrospective cohort study.

Frontiers in oncology·2026
Same author

Modeling Ion Transport and Selectivity via a Lennard-Jones Modified Poisson-Nernst-Planck Approach.

The journal of physical chemistry. B·2026
Same author

Patchouli oil microemulsion-in-gel system for topical treatment of psoriasis.

Colloids and surfaces. B, Biointerfaces·2026
Same author

Stiffness-dependent CMOT hydrogels promote mucosal repair in ulcerative colitis through YAP‑mediated mechanosensing in intestinal epithelial cells.

Journal of nanobiotechnology·2026
Same author

m6A-Mediated epitranscriptional reprogramming drives cardiac fibrosis by suppressing PGC-1α and boosting mitochondrial fission.

Journal of translational medicine·2026

Related Experiment Video

Updated: Oct 27, 2025

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.4K

New Fiber Bragg Grating Three-Dimensional Accelerometer Based on Composite Flexure Hinges.

Hui Wang1, Lei Liang1, Xiongbing Zhou1

  • 1National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China.

Sensors (Basel, Switzerland)
|July 24, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a compact, 3D fiber Bragg grating acceleration sensor for aerospace and defense. The novel design optimizes performance and minimizes size for demanding applications.

Keywords:
dynamic responsefiber bragg gratingflexure hingesthree-dimensional accelerometer

More Related Videos

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.3K
Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
04:41

Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures

Published on: September 2, 2019

7.6K

Related Experiment Videos

Last Updated: Oct 27, 2025

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.4K
Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.3K
Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures
04:41

Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures

Published on: September 2, 2019

7.6K

Area of Science:

  • Optical Engineering
  • Sensor Technology
  • Materials Science

Background:

  • Multi-dimensional acceleration sensors are critical in aerospace, weapon systems, and nuclear applications, demanding high performance, small size, and low mass.
  • Fiber Bragg grating (FBG) sensors offer advantages by using optical signals, mitigating electromagnetic interference common in multi-sensor systems.

Purpose of the Study:

  • To design and develop a compact, composite flexure hinge three-dimensional acceleration sensor.
  • To investigate the integration of an elastomer structure with FBG for optimized static and dynamic characteristics.
  • To establish a design theory and integration method for 3D acceleration sensors.

Main Methods:

  • Designed a composite flexure hinge structure integrating an elastomer and FBG.
  • Analyzed the coupling mechanism between the elastomer and FBG.
  • Optimized structural parameters affecting strain distribution, amplitude, frequency, and cross-axis coupling.
  • Developed a design theory and integration methodology for the 3D sensor.

Main Results:

  • Achieved a compact sensor size of 25 mm × 25 mm × 30 mm.
  • Demonstrated sensitivities of 51.9, 39.5, and 20.3 pm/g along the three spatial axes.
  • Measured resonance frequencies of 800 Hz, 1125 Hz, and 1750 Hz.
  • Established a measurable frequency range of 0-250 Hz.

Conclusions:

  • The developed composite flexure hinge FBG acceleration sensor meets stringent performance, size, and mass requirements.
  • The sensor design effectively addresses electromagnetic interference and offers precise multi-dimensional acceleration measurement.
  • This work provides a robust design theory and integration method for advanced 3D acceleration sensors.