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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:

Violent earthquake waves will be produced when an underground spherically packed explosive is blastedThe emphasis is put on the waves propagated from hard rocks into soft rocks, or from soft rocks intoAt 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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Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1289-1300 doi: 10.1007/s11709-019-0548-0

Abstract: There are many certain and uncertain design factors which have unrevealed rational effects on the generation of tensile damage and the stability of the circular tunnels during seismic actions. In this research paper, we have dedicated three certain and four uncertain design factors to quantify their rational effects using numerical simulations and the Sobol’s sensitivity indices. Main effects and interaction effects between the design factors have been determined supporting on variance-based global sensitivity analysis. The results detected that the concrete modulus of elasticity for the tunnel lining has the greatest effect on the tensile damage generation in the tunnel lining during the seismic action. In the other direction, the interactions between the concrete density and both of concrete modulus of elasticity and tunnel diameter have appreciable effects on the tensile damage. Furthermore, the tunnel diameter has the deciding effect on the stability of the tunnel structure. While the interaction between the tunnel diameter and concrete density has appreciable effect on the stability process. It is worthy to mention that Sobol’s sensitivity indices manifested strong efficiency in detecting the roles of each design factor in cooperation with the numerical simulations explaining the responses of the circular tunnel during seismic actions.

Keywords： shear waves     Sobol’s sensitivity indices     maximum principal stress     maximum overall displacement     tensile    

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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: was proposed for the seismic analysis of underground structures in layered ground under inclined P-SV wavesin previous studies, the proposed framework exhibits the advantage of incorporating oblique incident wavesNumerical results show that SV-waves are more destructive to underground structures than P-waves, and

Keywords： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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Experimental study on enhanced coupling of underground explosions by water-filled cavities

Wang Zhanjiang,Cai Zongyi,Zheng Xuefeng,Zhu Yurong

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 46-49

Abstract: When the explosive source is detonated in a water-filled cavity, the stress wave coupled into cement

Keywords： underwater explosions     surrounding rocks enhanced coupling     cement mortar     stress waves     cavity decoupling    

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Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 29-37

Abstract:

Under explosive loading, a tensile stress wave is a main cause to induceHow to reduce the strength of tensile stress wave is a key problem for underground protective structureThe structural characteristics, the propagation of shock waves and material dynamic properties are notstructures subjected to explosive loading has been investigated also in this paper by using one-dimensional stress

Keywords： underground protective structure     concrete tensile properties     anti-collapse     stress waves    

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Ribbon bridge in waves based on hydroelasticity theory

Cong WANG, Shixiao FU, Weicheng CUI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 57-62 doi: 10.1007/s11709-009-0005-6

Abstract: For the design and operation of a floating bridge, the understanding of its hydroelastic behavior in wavesmethod is applicable and adaptable for predicting the hydroelastic response of the floating bridge in waves

Keywords： hydroelasticity     ribbon bridge     wave     finite element method (FEM)    

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Soil seismic analysis for 2D oblique incident waves using exact free-field responses by frequency-based

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1530-1551 doi: 10.1007/s11709-022-0900-7

Abstract: The seismic analysis of a viscoelastic half-space under two-dimensional (2D) oblique incident waves isdisplacements and stresses of the free field are derived in general form for arbitrary incident P and SV wavesWith the present formulation, no distinction needs to be made for SV waves with over-critical incidentangles that make the reflected P waves disappear, while no critical angle exists for P waves.indicated that distinct phase difference exists between the horizontal and vertical responses for SV waves

Keywords： oblique incident waves     critical angle     half-space     finite/infinite element approach     seismic response    

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Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 240-240 doi: 10.1007/s11709-009-0100-8

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Monitoring & Analysis of Earthquake phenomena by Artificial SLF Waves

Zhao Guoze,Lu Jianxun

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 27-33

Abstract:

Electromagnetic waves in SLF (super low frequency) frequency band can be transmitted by powered generatorfields and the variation of apparent resistivity were generated due to interaction between regional stress

Keywords： SLF/ELF electromagnetic waves     electromagnetic anomaly     resistivity     earthquake monitoring    

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Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer structure

Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 380-391 doi: 10.1007/s11465-015-0365-7

Abstract: In this research, an experiment that applies Stoneley waves (a type of interfacial wave between two solidFirst, the wave velocity and wave structure of Stoneley waves at a perfectly bonded aluminum-steel interfaceTherefore, Stoneley waves show great potential as a non-destructive inspection method of a multilayer

Keywords： crack localization     interface waves     Stoneley waves     interlaminar damage     multilayer structure    

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The Achievements and Paradoxes of the Wave-particle Duality Theory

Huang Zhixun

Strategic Study of CAE 2002, Volume 4, Issue 1,   Pages 54-63

Abstract:

This paper is devoted to a survey of wave-particle duality theory of the optical waves and matterwaves.And so,whether the optical waves and EM waves corresponds to matter, or the character of matter, is discussedThen, a question for the FTL phase velocity of matter waves is proposed.Finally,the paper presents a discussion on the particlelity of evanescent waves and the virtual photons

Keywords： photon     optical wavers     matter waves     wave-particle duality     soliton     EM pulse     faster than light     evanescentwaves     virtual photon    

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Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 57-68 doi: 10.1007/s11709-014-0235-0

Abstract: flows and morphological changes in a tidal/coastal inlet and barrier islands due to storm surges and wavesintegrated coastal process model is capable of simulating flows induced by extreme conditions such as wavessurge tides, river flood flows, etc., and morphological changes induced by rapid coastal currents and wavesthe nonlinear shallow water equations with the effects of the Coriolis force, uneven bathymetry, wind stress

Keywords： coastal inlet     coastal process modeling     supercritical flow     sediment transport     barrier islands    

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Modeling of dynamic response of poroelastic soil layers under wave loading

Mehmet Bar?? Can üLKER

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 1-18 doi: 10.1007/s11709-014-0233-2

Abstract: In this paper, the dynamic response of saturated and layered soils under harmonic waves is modeled usingThe response variations are presented in terms of pore water pressure and shear stress distributions

Keywords： dynamic response of soils     coupled flow-deformation     finite elements     analytical solution     harmonic waves    

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EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Frontiers of Agricultural Science and Engineering   Pages 285-295 doi: 10.15302/J-FASE-2022469

Abstract:

● Transport stress declined the level of leukocytes including lymphocytes

Keywords： intestine     nNOS     nNOS-positive neurons     transport stress    

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Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 401-410 doi: 10.1007/s11465-017-0457-7

Abstract: However, in TSV manufacturing, thermo-mechanical stress is induced during the annealing process, oftenTop interface stress analysis on the TSV structure shows that the curvature of via openings releasesstress concentration that leads to ~60 MPa decrease of normal stresses,  Keywords： through silicon via (TSV)     annealing-induced stress     interface stress     plastic deformation     finite element    

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Title Author Date Type Operation

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

Zhong Guangfu,Wang Zhiliang,Li Yongchi

Journal Article

Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

Journal Article

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Journal Article

Experimental study on enhanced coupling of underground explosions by water-filled cavities

Wang Zhanjiang,Cai Zongyi,Zheng Xuefeng,Zhu Yurong

Journal Article

Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Journal Article

Ribbon bridge in waves based on hydroelasticity theory

Cong WANG, Shixiao FU, Weicheng CUI

Journal Article

Soil seismic analysis for 2D oblique incident waves using exact free-field responses by frequency-based

Journal Article

Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Journal Article

Monitoring & Analysis of Earthquake phenomena by Artificial SLF Waves

Zhao Guoze,Lu Jianxun

Journal Article

Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer structure

Bing LI,Xu GENG,Tong LU,Lei QIANG,Minghang LI

Journal Article

The Achievements and Paradoxes of the Wave-particle Duality Theory

Huang Zhixun

Journal Article

Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

Journal Article

Modeling of dynamic response of poroelastic soil layers under wave loading

Mehmet Bar?? Can üLKER

Journal Article

EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Journal Article

Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Journal Article