Next Article in Journal
Metal Nanoparticle Containing Nanocomposites of Drug Substances and Their Potential Biomedical Applications
Next Article in Special Issue
Inducing Damage Diagnosis Capabilities in Carbon Fiber Reinforced Polymer Composites by Magnetoelastic Sensor Integration via 3D Printing
Previous Article in Journal
Numerical Simulation of 3D Condensation Nanofluid Film Flow with Carbon Nanotubes on an Inclined Rotating Disk
Previous Article in Special Issue
Using Acoustic Emission Measurements for Ice-Melting Detection
Open AccessArticle

Stress Estimation Using the Acoustoelastic Effect of Surface Waves in Weak Anisotropic Materials

1
Department of Mechanical Convergence Engineering, Graduate School, Hanyang University, Seoul 04763, Korea
2
School of Mechanical Engineering, Hanyang University, Seoul 04763, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(1), 169; https://doi.org/10.3390/app10010169
Received: 20 November 2019 / Revised: 14 December 2019 / Accepted: 18 December 2019 / Published: 24 December 2019
(This article belongs to the Special Issue Nondestructive Testing (NDT))
This paper proposes a novel stress measurement method using the acoustoelastic effect of surface wave to estimate the stress of a homogeneous material plate with orthogonal anisotropy, in which the surface wave velocities are measured in three different directions before and after loading stress. The effectiveness of the proposed method was verified by numerical simulations and experiments. For the simulations, the surface wave velocities in three directions were obtained from a conventional perturbation model for weak anisotropic materials. The simulation results showed that the stress estimation error was less than 3% for an anisotropic rate up to 2% under stress conditions up to 90 MPa. Two specimens were prepared for the experiments, one was almost isotropic and another that had a relatively larger anisotropy rate of 2.6%. Then, the stresses loaded by a tensile test machine were estimated. The results showed good agreement with the given stresses for both specimens. These results confirm that the proposed method can be applied to estimate the surface stress state in anisotropic material plates. The proposed method is simple, practical, and is expected to be useful for monitoring changes of surface stress before and after machining such as the punching or bending of plate. View Full-Text
Keywords: acoustoelastic effect; stress estimation; surface waves; weak anisotropy material acoustoelastic effect; stress estimation; surface waves; weak anisotropy material
Show Figures

Figure 1

MDPI and ACS Style

Jun, J.; Shim, Y.-D.; Jhang, K.-Y. Stress Estimation Using the Acoustoelastic Effect of Surface Waves in Weak Anisotropic Materials. Appl. Sci. 2020, 10, 169.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop