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Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 326-331 doi: 10.1007/s11465-009-0045-6

Abstract: This study aims to model the propagation of Lamb waves used in structure health monitoring.A number of different numerical computational techniques have been developed for wave propagation studiesin complex media (LISA/SIM theory), has been effectively applied to numerical simulations of elastic waveThe finite difference equations describing wave propagation used in the LISA/SIM theory are obtained.Finally, the Lamb waves propagation modeling is implemented.

Keywords： Lamb wave     modeling     LISA/SIM theory     finite difference equation     finite element    

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New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 646-653 doi: 10.1631/FITEE.1400406

Abstract: In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation

Keywords： Adjoint operator     Orthogonal     Chebyshev     Pseudospectral method     Dirichlet-to-Neumann map    

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Simulation of viscoelastic behavior of defected rock by using numerical manifold method

Feng REN, Lifeng FAN, Guowei MA

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 199-207 doi: 10.1007/s11709-011-0102-1

Abstract: Numerical simulations of longitudinal wave propagation in a rock bar with microcracks are conducted byThe behavior of the stress wave traveling in a one-dimensional rock bar with randomly distributed microcracksIt is revealed that the highly defected rock bar has significant viscoelasticity to the stress wave propagationdistributed microcracks as well as the incident stress wave frequency.wave frequency.

Keywords： stress wave propagation     defected rock     numerical manifold method     viscoelastic behavior     storage modulus    

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Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 346-363 doi: 10.1007/s11709-021-0694-z

Abstract: Seismic modeling of massive structures requires special caution, as wave propagation effects significantlyAccurate representation of radiation damping in a half-space medium and wave propagation effects in a

Keywords： soil–structure interaction     massed foundation     radiation damping     anisotropic damage    

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Adaptive simulation of wave propagation problems including dislocation sources and random media

Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1054-1081 doi: 10.1007/s11709-019-0536-4

Abstract: Finally, efficiency of the proposed concept is verified by: 1) three benchmarks of one-dimensional (1-D) wavepropagation problems; 2) P-SV point sources and rupturing line-source including a bounded fault zone

Keywords： adaptive wavelet     adaptive smoothing     discontinuous solutions     stochastic media     spurious oscillations     Tikhonov regularization     minmod limiter    

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Leakage location system for oil pipeline on basis of stress wave detection

WANG Bangfeng, CHEN Renwen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 307-312 doi: 10.1007/s11465-008-0047-9

Abstract: the holing position in an oil pipeline by monitoring and analyzing the characteristics of the strain waveThe master system takes charge of managing and controlling the whole system, identifying the holing stresswave, and calculating the holing position.The slaver system is responsible for sampling the strain wave signal from the pipeline.The exact holing position can be obtained by a time delay locating method with stress wave characteristics
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On subsurface box-shaped lined tunnel under incident SH-wave propagation

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 948-960 doi: 10.1007/s11709-021-0740-x

Abstract: study is carried out to sensitize some effective parameters, including frequency content and incident waveThe results showed that subsurface openings with sharp corners distorted the propagation path of the

Keywords： box-lined tunnel     half-plane BEM     surface response     SH-wave     time-domain    

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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismicresearch sites suggest that the DMT predictions of from the parameters (material index), (horizontal stressthe CPT predictions from (cone resistance), presumably because of the availability, by DMT, of the stress

Keywords： horizontal stress index     shear wave velocity     flat dilatometer test     cone penetration test    

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Simulation of Wave Propagation Over a Submerged Bar Using a Modified Boussinesq Equation

Zheng Yonghong,Shen Yongming,Wu Xiuguang,You Yage

Strategic Study of CAE 2004, Volume 6, Issue 4,   Pages 34-40

Abstract: The numerical model applied to the propagation of waves over a submerged bar can produce results thatThese results can give some theoretical guidance to the applications of Boussinesq equation to wave propagation

Keywords： modified Boussinesq equation     numerical simulation     wave propagation     submerged bar    

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Faster Than Light and EM-Wave Anomalous Propagation

Huang Zhixun

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 80-92

Abstract:

In this paper, the historic background of the study on faster than light (FTL) and the possibility of working within the frame work of special relativity are discussed. The previous experimental studies with single photon, laser pulse and microwaves have revealed superluminal behavior in the quantum tunneling process. That phenomenon exists only in the case of special physical condition. The analogy between classical Telegraphist equation and Klein-gordon equation can be used to study particle tunneling and superluminal behavior. A discussion on the FTL experiment by Dr. L. Wang recently is included. Remarks on the future of FTL research is given in this article.

Keywords： faster than light     microwave anomalous propagation     tachyon     quantum tunneling process     e-vanescent mode    

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Performance of fixed beam without interacting bars

Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Mohammad Ali NAGHSH, Mohammreza MOHAMMAD KHANI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1180-1195 doi: 10.1007/s11709-020-0661-0

Abstract: The goal of this study is to develop a transferred stress system (TSS) on longitudinal reinforcementBased on the validated FE models, the stress distribution on the ordinary and TSS bars were evaluated

Keywords： transferred stress system     bending capacity     crack opening     crack propagation     FE nonlinear model     stress    

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Analyses of Evolutionary Process of One Dimensional Stress-waves in Heterogeneous Rock Medium

Zhong Guangfu,Wang Zhiliang,Li Yongchi

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 58-62

Abstract: earthquake waves will be produced when an underground spherically packed explosive is blasted, and their propagationcoupled with the famous elastic-plastic cap model of rock, numerical simulation and analyses for the propagationand evolution mechanism of 1 D detonated wave are done.At the same time, the influences of weak intercalated bed between rock masses on 1 D stress-waves are

Keywords： rock medium     1 D stress-waves     cap model     propagation and evolution    

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The Analyzing Methods and Advice on Seismic Stress Calculation of Offshore Pipelines

Sun Zhengce,Duan Menglan,Liu Liming,Zhang Wen,Chen Decheng

Strategic Study of CAE 2003, Volume 5, Issue 8,   Pages 76-80

Abstract:

The paper comprehensively analyzes and summarizes main problems that exist in seismic stress calculation

Keywords： offshore pipeline     seismic wave     fault     stress-strain     span     syphon    

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A Numerical Study of Wave Propagation and Cracking Processes in Rock-Like Material under Seismic Loading Article

Xiaoping Zhang, Qi Zhang, Quansheng Liu, Ruihua Xiao

Engineering 2022, Volume 17, Issue 10,   Pages 140-150 doi: 10.1016/j.eng.2021.09.023

Abstract: specimens (76 mm × 152 mm) because they were considerably smaller than the wavelength of the P-waveRepeated axial seismic loading did not induce crack propagation after the first axial seismic loading

Keywords： Seismic wave     Cyclic loading     Cracking processes     Bonded-particle model    

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Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads

Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 255-262 doi: 10.1007/s11465-015-0342-1

Abstract: The range of the stress intensity factor ?

Keywords： fatigue crack propagation modeling     life prediction     mean stress effects    

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Title Author Date Type Operation

Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Journal Article

New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Journal Article

Simulation of viscoelastic behavior of defected rock by using numerical manifold method

Feng REN, Lifeng FAN, Guowei MA

Journal Article

Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Journal Article

Adaptive simulation of wave propagation problems including dislocation sources and random media

Hassan YOUSEFI, Jamshid FARJOODI, Iradj MAHMOUDZADEH KANI

Journal Article

Leakage location system for oil pipeline on basis of stress wave detection

WANG Bangfeng, CHEN Renwen

Journal Article

On subsurface box-shaped lined tunnel under incident SH-wave propagation

Journal Article

Prediction of the shear wave velocity

Amoroso SARA

Journal Article

Simulation of Wave Propagation Over a Submerged Bar Using a Modified Boussinesq Equation

Zheng Yonghong,Shen Yongming,Wu Xiuguang,You Yage

Journal Article

Faster Than Light and EM-Wave Anomalous Propagation

Huang Zhixun

Journal Article

Performance of fixed beam without interacting bars

Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Mohammad Ali NAGHSH, Mohammreza MOHAMMAD KHANI

Journal Article

Analyses of Evolutionary Process of One Dimensional Stress-waves in Heterogeneous Rock Medium

Zhong Guangfu,Wang Zhiliang,Li Yongchi

Journal Article

The Analyzing Methods and Advice on Seismic Stress Calculation of Offshore Pipelines

Sun Zhengce,Duan Menglan,Liu Liming,Zhang Wen,Chen Decheng

Journal Article

A Numerical Study of Wave Propagation and Cracking Processes in Rock-Like Material under Seismic Loading

Xiaoping Zhang, Qi Zhang, Quansheng Liu, Ruihua Xiao

Journal Article

Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads

Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI

Journal Article