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

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.
Residual Stresses01:26

Residual Stresses

Residual stresses reside in a structure even after removing the original stress inducer. This phenomenon often arises from varied plastic deformations across different parts of a structure. Consider a rod stretched beyond its yield point. It will not regain its original length due to permanent deformation. Even after load removal, the rod does not entirely lose stress because of uneven plastic deformations, resulting in residual stresses. The computation of these stresses in structures is...
Residual Stresses in Circular Shafts01:10

Residual Stresses in Circular Shafts

In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the shaft's...
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...
Residual Stresses in Bending01:18

Residual Stresses in Bending

In the study of elastoplastic members subjected to bending moments, understanding the loading and unloading phases is crucial for assessing material behavior and structural integrity. During the loading phase, as the bending moment increases, the material initially responds elastically, adhering to Hooke's Law, where stress is directly proportional to strain. When the load exceeds the yield strength, plastic deformation occurs, resulting in permanent strain and deformation that remains even...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...

You might also read

Related Articles

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

Sort by
Same author

Evaluation of signal disturbance and recovery in phased array ultrasonic inspection during welding.

Welding in the world·2026
Same author

Ultrasonic phased array measurement & compression for in-process weld bevel estimation.

Ultrasonics·2026
Same author

Similar global transcription patterns in mouse lung tissue following pulmonary exposure to renewable and conventional diesel engine exhaust particles.

Environmental toxicology and pharmacology·2025
Same author

Fully automated extraction of high-quality total nucleic acids from FFPE specimens for comprehensive genomic profiling of solid tumors.

SLAS technology·2025
Same author

Inspection of wind turbine bolted connections using the ultrasonic phased array system.

Heliyon·2025
Same author

Study of Residual Stress Using Phased Array Ultrasonics in Ti-6AL-4V Wire-Arc Additively Manufactured Components.

Sensors (Basel, Switzerland)·2024

Related Experiment Video

Updated: Jul 16, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

Compensating Couplant Effects in Phased-Array Ultrasonic ToF Sensing for Residual Stress.

Brandon Mills1, Yashar Javadi1,2, Charles N Macleod1

  • 1Department of Electrical and Electronic Engineering, University of Strathclyde, Glasgow G1 1XQ, UK.

Sensors (Basel, Switzerland)
|July 15, 2026
PubMed
Summary

Portable ultrasonic sensing for residual stress (RS) can be biased by couplant layer thickness. This study quantifies this bias and demonstrates a compensation strategy, significantly reducing error in residual stress measurements.

Keywords:
acoustic simulationnon-destructive testingphased array ultrasonic transducersresidual stress

More Related Videos

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing
08:40

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Published on: February 11, 2016

Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection
05:04

Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection

Published on: June 13, 2023

Related Experiment Videos

Last Updated: Jul 16, 2026

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing
08:40

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Published on: February 11, 2016

Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection
05:04

Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection

Published on: June 13, 2023

Area of Science:

  • Materials Science
  • Non-destructive Testing
  • Mechanical Engineering

Background:

  • Residual stress (RS) is critical for structural integrity after manufacturing processes like welding and additive manufacturing.
  • Portable, in-situ sensing methods are needed for accurate RS assessment.
  • Phased Array Ultrasonics for Residual Stress (PAURS) infers RS from time-of-flight (ToF) changes of longitudinal critically refracted (LCR) waves.

Purpose of the Study:

  • To characterize the sensitivity of LCR ToF sensing to couplant layer thickness variations.
  • To quantify the impact of couplant-induced bias on inferred residual stress (RS) uncertainty.
  • To demonstrate a model-informed compensation strategy for practical phased-array ultrasonic RS sensing.

Main Methods:

  • Combined numerical modeling and experimental validation.
  • Characterized couplant-induced sensitivity in LCR ToF sensing.
  • Developed and validated a model-informed compensation strategy for ToF bias.

Main Results:

  • Couplant thickness variations can introduce significant RS errors (~36 MPa or ~13% of yield strength).
  • The proposed compensation strategy reduced ToF bias to ~0.3 ns in experiments.
  • This corresponds to a reduced RS error of ~1.1 MPa (~0.4% of yield strength).

Conclusions:

  • Couplant variability is a critical factor affecting the accuracy of phased-array ultrasonic RS sensing.
  • Model-informed compensation effectively mitigates couplant-induced bias, improving measurement reliability.
  • Provides guidance for sensor calibration and uncertainty quantification in PAURS applications.