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Influential factors on the development of a low-enthalpy geothermal reservoir: A sensitivity study of a realistic field

Wang, Y. (author), Voskov, D.V. (author), Khait, M. (author), Saeid, S. (author), Bruhn, D.F. (author)

A realistic deep low-enthalpy geothermal reservoir based on real data with high detail and complicated sedimentary structure is utilized to perform sensitivity analyses of the geological features influencing reservoir properties. We perform simulations using the Delft Advanced Research Terra Simulator (DARTS). Compelling numerical performance...

journal article 2021

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Tunable mechanical behavior of auxetic cementitious cellular composites (CCCs): Experiments and simulations

Xu, Y. (author), Schlangen, E. (author), Lukovic, M. (author), Šavija, B. (author)

This research presents an investigation of the compressive behavior of auxetic cementitious cellular composites (CCCs) using a combination of experiments and finite element (FE) simulations. Typical auxetic centrosymmetric geometry was used as unit cells for the cellular structure and fiber reinforced cementitious mortar were used as...

journal article 2020

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Analysis of local damages effect on mechanical responses of underwater shield tunnel via field testing and numerical simulation

Tan, Xuyan (author), Chen, Weizhong (author), Wang, L. (author), Yang, Jianping (author)

The investigation of concrete structural performance is crucial to maintain the stability of infrastructure. In order to assess structural stability, this work focuses on the development of an integrated framework to detect damaged conditions in the field and analyze their effect on mechanical performance through nondestructive testing (NDT)...

journal article 2020

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Experimental and numerical study on behaviour of square steel tube confined reinforced concrete stub columns after fire exposure

Liu, Faqi (author), Yang, Hua (author), Yan, R. (author), Wang, Wei (author)

The behaviour of square steel tube confined reinforced concrete columns after fire exposure was studied experimentally and numerically in this paper. Eighteen stub columns were first heated following the ISO 834 standard fire including both heating and cooling phases, and were subsequently loaded to failure after cooling to ambient temperature....

journal article 2019

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Laboratory and numerical investigation of microwave heating properties of asphalt mixture

Wang, H. (author), Zhang, Yue (author), Zhang, Yi (author), Feng, Shuyin (author), Lu, Guoyang (author), Cao, Lintao (author)

Microwave heating is an encouraging heating technology for the maintenance, recycling, and deicing of asphalt pavement. To investigate the microwave heating properties of asphalt mixture, laboratory tests and numerical simulations were done and compared. Two types of Stone Mastic Asphalt (SMA) mixture samples (with basalt aggregates and steel...

journal article 2019

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Numerical simulation of the initial particle parking structure of cement/geopolymer paste and the dissolution of amorphous silica using real-shape particles

Zuo, Y. (author), Qian, Zhiwei (author), Garboczi, Edward J. (author), Ye, G. (author)

Many particle-based numerical models have been used to simulate the hydration process of cementitious materials. Most of those models employ regular shape particles, like the commonly used spheres, to represent cement, slag, or fly ash, which neglects the influence of particle shape. To deal with this issue, this study extended the Anm material...

journal article 2018

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Are inundation limit and maximum extent of sand useful for differentiating tsunamis and storms?: An example from sediment transport simulations on the Sendai Plain, Japan

Watanabe, Masashi (author), Goto, Kazuhisa (author), Bricker, J.D. (author), Imamura, Fumihiko (author)

We examined the quantitative difference in the distribution of tsunami and storm deposits based on numerical simulations of inundation and sediment transport due to tsunami and storm events on the Sendai Plain, Japan. The calculated distance from the shoreline inundated by the 2011 Tohoku-oki tsunami was smaller than that inundated by storm...

journal article 2018

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Examining the “time-zero” of autogenous shrinkage in high/ultra-high performance cement pastes

Huang, H. (author), Ye, G. (author)

The term “Time-zero”, i.e., the time for the start of autogenous shrinkage measurement, is usually used for estimating the cracking potential of structural components. Accurate determination of the “time-zero” is therefore critical for autogenous shrinkage measurement, which is the main objective of this study. There is a general agreement...

journal article 2017

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Application of physical and numerical simulations for interpretation of peripheral coarse grain structure during hot extrusion of AA7020 aluminum alloy

Eivani, A.R. (author), Zhou, J. (author)

In this research, hot compression test is used to simulate the metallurgical phenomena occurring in the peripheral part of AA7020 aluminum alloy extrudates during hot extrusion and leading to the formation of the peripheral coarse grain (PCG) structure. The temperature profiles at a tracking point in the peripheral part of extrudates are...

journal article 2017

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Numerical study on the flow characteristics of micro air vehicle wings at low Reynolds numbers

Xiao, Tianhang (author), Li, Zhengzhou (author), Deng, S. (author), Ang, Haisong (author), Zhou, Xinchun (author)

The aerodynamic characteristics around a micro air vehicle wing with an inverse-Zimmerman configuration are numerically investigated by an in-house programmed solver particularly dedicated for aircrafts operating in low Reynolds number regime. The complex three-dimensional aerodynamic performance was investigated in terms of force generation...

journal article 2016

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Numerical simulation of the hydration process and the development of microstructure of self-compacting cement paste containing limestone as filler

Ye, G. (author), Liu, X. (author), Poppe, A.M. (author), De Schutter, G. (author), Van Breugel, K. (author)

journal article 2007

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Isothermal Calorimetry Study of Blended Cements and its Application in Numerical Simulations

Xiong, X. (author), Van Breugel, K. (author)

Apparent activation energy (E) is generally used to consider the effect of temperature on the kinetics of cement hydration in the numerical simulation of cement hydration processes. This paper deals with an experimental study on the kinetics of Portland cement and blast furnace slag cement using isothermal Calorimetry at 20, 30, and 40°C. Two...

journal article 2001

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Three-dimensional finite element analysis of tunnels and foundations. (Analyse tridimensionnelle aux elements finis de tunnels et de fondations)

Groen, A.E. (author), De Borst, R. (author)

journal article 1997

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Gradient plasticity in numerical simulation of concrete cracking

De Borst, R. (author), Pamin, J. (author)

journal article 1996

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Stochastic approaches for damage evolution in standard and non-standard continua

Carmeliet, J. (author), De Borst, R. (author)

journal article 1995

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Numerical simulation of localization phenomena using gradient plasticity anf finite elements

Pamin, J. (author), De Borst, R. (author)

journal article 1995

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On the behaviour of rubberlike materials in compression and shear

Van den Bogert, P.A.J. (author), De Borst, R. (author)

journal article 1994

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Finite-Element Modeling of Deformation and Cracking in Early-Age Concrete

De Borst, R. (author), Van den Boogaard, A.H. (author)

journal article 1994

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Fundamental issues in finite element analyses of localization of deformation

De Borst, R. (author), Sluys, L.J. (author), Muhlhaus, H.B. (author), Pamin, J. (author)

journal article 1993

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Computational mechanics: Recent developments in DIANA ; Mecanique par ordinateur: developpements recents realises a l'aide du logiciel DIANA

De Borst, R. (author), Roddeman, P.G. (author)

journal article 1991