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Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation digital images

Chen WANG, Yuching WU, Jianzhuang XIAO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4, Pages 461-473 doi: 10.1007/s11709-017-0441-7

Abstract: The microscopic randomness is taken into account, and correlations of RAC among five phases are investigated

Keywords： RAC nano-indentation digital image multiscale microscopic randomness homogenization

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Research on the Microscopic Mechanism and Microscopic Phenomena of the Gas Porous Electrode Reaction

Zhu Mei,Xu Xianzhi,Yang Jiming

Strategic Study of CAE 2005, Volume 7, Issue 5, Pages 79-83

Abstract:

In order to get the theoretical reference for making high efficiency porous electrode, microscopicThe microscopic mechanism of the electrolyte movement in the porous electrode was analyzed.

Keywords： porous electrode three-phase interface zinc-air battery

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Aerobic granulation of pure bacterial strain

ADAV Sunil S., LEE Duu-Jong

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4, Pages 461-467 doi: 10.1007/s11783-008-0066-0

Abstract: Confocal laser scanning microscopic test results show that was distributed over the initial small aggregates

Keywords： following excellent settling phenol/ sequencing microscopic

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Molecular dynamic simulation on the conformation of mouse muscle type nAChR

Shengai SUN, Rilei YU, Yanhui ZHANG, Yanni LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3, Pages 348-352 doi: 10.1007/s11705-009-0284-4

Abstract: A mouse muscle type nAChR model ((α1)βδγ) was built based on the cryoelectron microscopic

Keywords： pentameric hydrophilic Tyr127 cryoelectron microscopic conformation

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A solution to stochastic unit commitment problem for a wind-thermal system coordination

B. SARAVANAN,Shreya MISHRA,Debrupa NAG

Frontiers in Energy 2014, Volume 8, Issue 2, Pages 192-200 doi: 10.1007/s11708-014-0306-x

Abstract: of wind-thermal co-ordination system as well as stochasticity in the load side by incorporating the randomness

Keywords： unit commitment (UC) randomness wind generation univariate chance constrained

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Analysis of behavior of melted dark green silty soil

TANG Yiqun, ZHOU Nianqing, YANG Ping, SHEN Feng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3, Pages 242-245 doi: 10.1007/s11709-008-0022-x

Abstract: presented and their influences on dark silty soil after being frozen are theoretically illustrated from a microscopic

Keywords： electron microscopy mechanic microscopic perspective addition dynamic

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Stochastic analysis of laminated composite plate considering stochastic homogenization problem

S. SAKATA,K. OKUDA,K. IKEDA

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2, Pages 141-153 doi: 10.1007/s11709-014-0286-2

Abstract: In particular, influence of a microscopic random variation of the elastic properties of component materialsThis study deals with the stochastic response of a laminated composite plate against the microscopic

Keywords： stochastic homogenization multiscale stochastic analysis microscopic random variation laminated composite

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Reliability and variance-based sensitivity analysis of arch dams during construction and reservoir impoundment

M. Houshmand KHANEGHAHI, M. ALEMBAGHERI, N. SOLTANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 526-541 doi: 10.1007/s11709-018-0495-1

Abstract: The static performance of arch dams during construction and reservoir impoundment is assessed taking into account the effects of uncertainties presented in the model properties as well as the loading conditions. Dez arch dam is chosen as the case study; it is modeled along with its rock foundation using the finite element method considering the stage construction. Since previous studies concentrated on simplified models and approaches, comprehensive study of the arch dam model along with efficient and state-of-the-art uncertainty methods are incorporated in this investigation. The reliability method is performed to assess the safety level and the sensitivity analyses for identifying critical input factors and their interaction effects on the response of the dam. Global sensitivity analysis based on improved Latin hypercube sampling is employed in this study to indicate the influence of each random variable and their interaction on variance of the responses. Four levels of model advancement are considered for the dam-foundation system: 1) Monolithic dam without any joint founded on the homogeneous rock foundation, 2) monolithic dam founded on the inhomogeneous foundation including soft rock layers, 3) jointed dam including the peripheral and contraction joints founded on the homogeneous foundation, and 4) jointed dam founded on the inhomogeneous foundation. For each model, proper performance indices are defined through limit-state functions. In this manner, the effects of input parameters in each performance level of the dam are investigated. The outcome of this study is defining the importance of input factors in each stage and model based on the variance of the dam response. Moreover, the results of sampling are computed in order to assess the safety level of the dam in miscellaneous loading and modeling conditions.

Keywords： concrete arch dams reliability randomness improved Latin hypercube sampling variance-based sensitivity