Results 11 to 20 of about 238,632 (305)
Shock and Vibration, 2022 In mining engineering, the in situ stress changes with the stress induced by the surrounding mining activities. It positively or negatively affects the propagation of ultrasonic guided waves in rockbolts.
Shuisheng Yu, Leilei Niu, Jin Chen
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Deep Underground Science and Engineering, 2022 Complex weak structural planes and fault zones induce significant heterogeneity, discontinuity, and nonlinear characteristics of a rock mass. When an earthquake occurs, these characteristics lead to extremely complex seismic wave propagation and ...
Cong Zhang +4 more
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Removing Residual Stress and Increasing Fatigue Life by Ultrasonic Method [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2021 In this paper, a new method is introduced for evaluating effects of residual stress on fatigue life. The ability of ultrasonic method using longitudinal wave with critical angle of refraction or LCR wave in measuring and removing residual stresses due to
Ali Moarefzadeh
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Theoretical Analysis of Longitudinal Wave Attenuation in a Stressed Rock With Variable Cross-Section
Frontiers in Earth Science, 2019 In this work, the longitudinal wave propagation in stressed rock with variable cross-section is investigated analytically. Considered the stress-sensibility of dynamic elastic modulus and the viscosity of rock, a modified viscoelastic stress-strain ...
Wei Yuan +3 more
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Lithosphere, 2022 To study the influence of drilling and blasting on the deformation of the tunnel lining in a multimedium surrounding rock section, this paper constructs the deformation calculation theory of the explosion stress wave of the tunnel lining.
Caijin Xie, Tiejun Tao, Xingchao Tian
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Finite Difference Analysis of 2D Stress Wave Propagation in Two Dimensional Functionally Graded Ceramics-Metals Composites [PDF]
Mechanics of Advanced Composite Structures, 2021 In this study, a finite difference method is presented for longitudinal stress wave propagation analysis in functionally graded 2D plane strain media. The plane material consists of two ceramics (SiC and Al2O3) and two metals (Al 1100 and Ti-6A1-4V (TC4))
Ali Amiri, Hossein Rahmani
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Wave speeds and Green’s tensors for shear wave propagation in incompressible, hyperelastic materials with uniaxial stretch [PDF]
, 2019 Assessing elastic material properties from shear wave propagation following an acoustic radiation force impulse (ARFI) excitation is difficult in anisotropic materials because of the complex relations among the propagation direction, shear wave ...
Caenen, Annette +2 more
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Wave Propagation in Stressed Composites
The Journal of the Acoustical Society of America, 1996 The performance of high-temperature composites can be significantly affected by the presence of residual stresses. These stresses arise due to the mismatch of thermal expansion coefficients between matrix and fibers during cooling from fabrication temperature to room temperature.
Degtyar, A., Huang, W., Rokhlin, S.
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Stress Wave Anisotropy in Centered Square Highly Nonlinear Granular Systems [PDF]
, 2012 Highly ordered, close packed granular systems present a nonlinear dynamic behavior stemming from the Hertzian contact interaction between particles. We investigated the propagation of elastic stress waves in an uncompressed, centered square array of ...
Daraio, C., Leonard, A.
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Debris flow seismo-acoustic wave in a finite layer waveguide [PDF]
E3S Web of Conferences, 2023 The seismo-acoustic wave detection is a popular method to detect debris flows. It has been successfully used in different early warning systems worldwide. However, more information is embedded in the signals related to flow conditions. This research uses
Wei Shih-Chao, Liu Ko-Fei, Regmi Sudhan
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