Related Experiment Video
Updated: Feb 18, 2026
09:02
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
Published on: January 31, 2025
1.7K
Peri-ultrasound modeling for surface wave propagation
Mohammad Hadi Hafezi1, Tribikram Kundu1
1Department of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson, AZ 85721, USA.
Ultrasonics
|November 18, 2017
Summary
This study uses peri-ultrasound modeling to analyze surface waves interacting with cracks. Results show increased nonlinear behavior in cracked structures, validating the novel approach.
Area of Science:
- Solid Mechanics
- Nonlinear Ultrasonics
- Computational Materials Science
Background:
- Surface waves are crucial for non-destructive testing.
- Surface breaking cracks significantly alter wave propagation.
- Accurate modeling of wave-crack interaction is essential for structural health monitoring.
Purpose of the Study:
- To investigate the interaction between surface waves and surface breaking cracks.
- To utilize a novel computational tool, peri-ultrasound, for modeling ultrasonic responses.
- To analyze both linear and nonlinear ultrasonic behavior in cracked materials.
Main Methods:
- Modeling surface wave propagation using a triangular pulse excitation.
- Employing peridynamic theory within the peri-ultrasound modeling tool.
- Simulating particle movements to analyze transmitted and reflected wave fields.
- Validating results against experimental observations and analytical solutions (Lamb's Problem).
Main Results:
- Computed Rayleigh wave amplitude spectra align with experimental data.
- A significant increase in nonlinear behavior was observed in structures with surface breaking cracks.
- The peri-ultrasound model accurately predicted wave interaction phenomena.
Conclusions:
- Peri-ultrasound is an effective tool for modeling surface wave interactions with cracks.
- Surface breaking cracks induce measurable nonlinear ultrasonic responses.
- The study validates the capability of peridynamic theory in simulating complex wave phenomena.
Related Concept Videos
01:17Ultrasonography
8.1K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
During an ultrasonography procedure, a handheld device called...
8.1K
01:07Propagation of Waves
3.1K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
3.1K
01:30Typical Model Studies
645
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
645