- document
-
Wang, Heng (author), Chen, Feng (author), Shiau, Jim (author), Dias, Daniel (author), Lai, F. (author), Huang, Jianhua (author)Cement-based columns in combination with geosynthetic reinforcement is a well-established soft ground improvement technique to enhance embankment stability. This paper aims to present a finite-element (FE) study based on a case history of a geosynthetic-reinforced column-supported (GRCS) embankment over soft soil. In this study, the columns...journal article 2023
- document
-
Lai, F. (author), Shiau, Jim (author), Keawsawasvong, Suraparb (author), Chen, Fuquan (author), Banyong, Rungkhun (author), Seehavong, Sorawit (author)This study presents a hybrid framework to predict stability solutions of buried structures under active trapdoor conditions in natural clays with anisotropy and heterogeneity by combining physics-based and data-driven modeling. Finite-element limit analysis (FELA) with a newly developed anisotropic undrained shear (AUS) failure criterion is...journal article 2023
- document
-
Xue, Li Hua (author), Xiao, Jun Hua (author), Zhang, De (author), Guo, Y. (author), Chen, Bing Wen (author)Particle shape plays an essential role in deformation characteristics of railway ballast bed. The numerical reconstruction of ballast morphological features, including overall shape and angular distribution, remains a hot issue in research on ballast mechanical behavior simulation. A novel shape reconstruction method was adopted to generate...journal article 2023
- document
-
Singh, Umed (author), Kumar, Sachin (author), Chen, B. Y. (author)In this work, Floating Node Method (FNM), first developed for fracture modelling of laminate composites, is coupled with cell-wise strain Smoothed Finite Element Method (SFEM) for modelling 2D linear elastic fracture mechanics problems. The proposed method is termed as Smoothed Floating Node Method (SFNM). In this framework, FNM is used to...journal article 2022
- document
-
Chen, Linfeng (author), Hulshoff, S.J. (author), Dong, Yuhong (author)The underlying physical mechanism of the residual-based large eddy simulation (LES) based on the variational multiscale (VMS) method is clarified. Resolved large-scale energy transportation equation is mathematically derived for turbulent kinetic energy budget analysis. Firstly, statistical results of benchmark turbulent channel flow at Re...journal article 2022
- document
-
Lai, F. (author), Chen, Fuquan (author), Liu, Songyu (author), Keawsawasvong, Suraparb (author), Shiau, Jim (author)Pit-in-pit (PIP) excavations in an aquifer–aquitard system likely undergo catastrophic failures under the hydraulic uplift, the associated undrained stability problem, however, has not been well analyzed in the past. To this end, a hypothetical model of PIP braced excavation in typical soil layers of Shanghai, China is developed using the...journal article 2022
- document
-
Chen, Fuquan (author), Liu, Liyang (author), Lai, F. (author), Gavin, Kenneth (author), Flynn, Kevin N. (author), Li, Yida (author)Large-diameter monopiles are widely used as the foundation to support offshore wind turbines (OWTs) in shallow coastal waters. The benefits of small-to-medium diameter tapered piles have been reported in the past. The potential use of large-diameter tapered monopiles installed by impact driving to support OWTs is thus presented, and then...journal article 2022
- document
-
Wang, L. (author), Li, S. (author), Wang, Ping (author), Chen, Rong (author), Li, Z. (author)The continuous homogeneous rail constraint of embedded rail system (ERS) is realized by the encapsulation of rails with the elastic poured compound (EPC) which is a composite material. Previous treatment of EPC as linear elastic material was insufficient in the failure analysis of ERS. In this work, a hyperelastic model is developed to...journal article 2022
- document
-
Chen, X. (author), Sanchez, T. (author), Conciatori, D. (author), Chaouki, H. (author), Sorelli, L. (author), Selma, B. (author), Chekired, M. (author)This paper presents a new 2D water transport model considering capillary suction to predict the water content evolution in the concrete porosity. The basic formulations of the model are illustrated, and a switching algorithm is introduced to simulated wet-drying effects. Two specific absorption tests are studied to validate this model. The first...conference paper 2021
- document
-
Chen, P. (author), Engel, Philip (author), Mazur, Adam (author), Abélard, Clément (author), Urbach, Paul (author)Accurate optical modeling for design and optimization of liquid crystal on silicon spatial light modulators (LCoS SLMs) is important for phase-related applications. Traditional matrix method cannot accurately predict the optical performance when the LC distribution is complex, therefore the rigorous finite element method (FEM) is preferred....conference paper 2020
- document
-
Chen, X. (author), Keşkekler, A. (author), Alijani, F. (author), Steeneken, P.G. (author)Diamagnetic levitation is a promising technique for realizing resonant sensors and energy harvesters since it offers thermal and mechanical isolation from the environment at zero power. To advance the application of diamagnetically levitating resonators, it is important to characterize their dynamics in the presence of both magnetic and...journal article 2020
- document
-
Wang, L. (author), Wang, Ping (author), Chen, Rong (author), Li, S. (author), Li, Z. (author)Embedded rail system (ERS) is a new type of track structure with many advantages due to its continuous rail support. The rapid development of urban rail transit all over the world renders its application prospect broad. However, the cracks and debonds in ERS present a threat to the traffic safety and a possibility for high maintenance costs....journal article 2020
- document
-
Lu, X. (author), Ridha, M. (author), Chen, B. Y. (author), Tan, V. B.C. (author), Tay, T. E. (author)The cohesive element (CE) has been widely used to model delamination in laminated composites. The penalty stiffness, interfacial strength and fracture toughness are three CE parameters that often determine the accuracy of the numerical analysis by finite elements (FEs). The fracture toughness may be experimentally determined through standard...journal article 2019
- document
-
Lu, X. (author), Chen, B. Y. (author), Tan, V. B.C. (author), Tay, T. E. (author)The cohesive element has been widely employed to model delamination and matrix cracking in composite materials. However, an extremely fine mesh along the potential crack path is required to achieve accurate predictions of stresses within the cohesive zone. A sufficient number of cohesive elements must be present within the cohesive zone ahead...journal article 2018
- document
-
Cui, Z. (author), Chen, Xianping (author), Fan, Xuejun (author), Zhang, Kouchi (author)Interfacial properties of Cu/SiO2 in semiconductor devices has continued to be the subject of challenging study for many years because of its difficulties in experimentally quantifying the critical strength of interface. In this paper, a multi-scale modeling approach is built to characterize the interfacial properties between Cu and SiO2. In...conference paper 2018
- document
-
Wu, Yue (author), Liu, Xiuming (author), Li, Q. (author), Chen, Boxuan (author), Luo, Peng (author), Pronk, Arno (author), Mergny, Elke (author)By using inflatable moulds and then spraying cellulose-water mixture, one ice dome and two ice towers were built in Harbin in December 2016. During the whole process, form-finding of the inflatable moulds as well as the construction of these ice composite shell structures are very important for the final results.<br/>The mould for the ice dome...conference paper 2017
- document
-
Chen, X (author), Bei, G. (author)Advanced engineering and functional ceramics are sensitive to damage cracks, which delay the wide applications of these materials in various fields. Ceramic composites with enhanced fracture toughness may trigger a paradigm for design and application of the brittle components. This paper reviews the toughening mechanisms for the nanolayered...journal article 2017
- document
-
Chen, F. (author)Deltaic reservoirs are of great significance in both exploration and production of oil & gas and they have aroused increasing interest during the recent years. Coastal engineering deals with sediment transport on a millisecond and micron scale, while geology deals with sequence stratigraphy on a millenary and 10-100 km scale. However, relatively...master thesis 2014
- document
-
Chen, T. (author)This master thesis details the investigation of the effect of geometrical imperfection on thin shell structures using general FEM software packages. The author proposes a finite element based method for the analysis and design of thin shell structures, and describes the implementation of such a procedure on four different FEM packages. The...master thesis 2014