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Related Concept Videos

Measurements of Strain01:27

Measurements of Strain

957
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...
957
Strain-Energy Density01:20

Strain-Energy Density

424
Understanding the strain energy density in materials under axial load is crucial for evaluating their mechanical behavior and durability. When a rod is subjected to such a load, it elongates and stores energy, known as strain energy, as potential energy within the material. This energy is measured in terms of energy per unit volume.
In the elastic region of a material, the relationship between the stress and the strain is linear and follows Hooke's Law. The strain energy density in this...
424
Hooke's Law01:26

Hooke's Law

392
Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.
392
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

407
The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
407
Strain and Elastic Modulus01:15

Strain and Elastic Modulus

3.6K
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...
3.6K
Elastic Strain Energy for Normal Stresses01:22

Elastic Strain Energy for Normal Stresses

169
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...
169

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A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
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Stretchable Electronics with Strain-Resistive Performance.

Sihui Hou1, Cong Chen1, Libing Bai1

  • 1School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China.

Small (Weinheim an Der Bergstrasse, Germany)
|December 11, 2023
PubMed
Summary
This summary is machine-generated.

This review summarizes advances in stretchable electronics, focusing on materials and structures that maintain stable performance under strain. It highlights progress in developing robust, strain-resistive devices for applications like wearable technology and healthcare.

Keywords:
material engineeringstrain-resistancestretchable electronicsstructural engineeringsystem integration

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Mechanical Engineering

Background:

  • Stretchable electronics are crucial for applications in healthcare, monitoring, and interfaces.
  • Mechanical robustness and stable performance under strain are critical for practical use.

Purpose of the Study:

  • To provide a comprehensive overview of recent advances in stretchable electronics with strain-resistive performance.
  • To guide future development in the field of stretchable electronics.

Main Methods:

  • Summarization of intrinsically strain-resistive stretchable materials (conductors, semiconductors, insulators).
  • Systematic representation of advanced structures (helical, serpentine, meshy, wrinkled, kirigami-based).
  • Introduction of stretchable arrays and circuits with integrated functionalities.

Main Results:

  • Detailed overviews of strain-resistive materials and structures are presented.
  • Advanced designs enabling stable performance under complex strains are highlighted.
  • Integration of multiple functionalities in stretchable circuits is discussed.

Conclusions:

  • Significant progress has been made in stretchable electronics with strain-resistive capabilities.
  • The review offers a roadmap for future research and development in stretchable electronic devices.