Qiushi Chen
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View article: Robust multi-objective optimization framework for performance-based seismic design of steel frame with energy dissipation system
Robust multi-objective optimization framework for performance-based seismic design of steel frame with energy dissipation system Open
Modern seismic codes ensure life safety, but code-compliant buildings can still suffer significant economic losses from earthquake-induced damage, even during moderate events. Performance-Based Seismic Design (PBSD) has been developed to m…
View article: Discrete element modeling of irregular-shaped soft pine particle flow in an FT4 powder rheometer
Discrete element modeling of irregular-shaped soft pine particle flow in an FT4 powder rheometer Open
View article: Optimization of pressurization process in low-pressure casting of a 5.4-ton gigantic C95800 copper alloy casting
Optimization of pressurization process in low-pressure casting of a 5.4-ton gigantic C95800 copper alloy casting Open
View article: Machine learning ground motion models for a critical site with long-term earthquake records
Machine learning ground motion models for a critical site with long-term earthquake records Open
Ground motion models derived using data from widespread stations and earthquakes induce significant aleatory variability when applied to predict ground motions for a single site. This issue can be even worse when the sites of interest show…
View article: The role of flexural particles in the shear flow of pine residue biomass: An experiment-informed DEM simulation study
The role of flexural particles in the shear flow of pine residue biomass: An experiment-informed DEM simulation study Open
View article: Efficient Off-Grid 2-D Doa Estimation for Sparse 2-D Array Based on Compressed Sensing with Gain/Phase Uncertainties
Efficient Off-Grid 2-D Doa Estimation for Sparse 2-D Array Based on Compressed Sensing with Gain/Phase Uncertainties Open
View article: Cooperation of Covalent Bonds and Coordinative Bonds Stabilizing the Si-Binder-Cu Interfaces for Extending Lifespan of Silicon Anodes
Cooperation of Covalent Bonds and Coordinative Bonds Stabilizing the Si-Binder-Cu Interfaces for Extending Lifespan of Silicon Anodes Open
View article: Discrete element modeling of granular hopper flow of irregular-shaped deformable particles
Discrete element modeling of granular hopper flow of irregular-shaped deformable particles Open
View article: Uncertainty propagation of soil property in dynamic site response under different site conditions
Uncertainty propagation of soil property in dynamic site response under different site conditions Open
It has been recognized that the soil profile and the associated parameters are usually not known with certainty in probabilistic seismic hazard analysis, however, little is known about the influence of site conditions on the propagation of…
View article: Reverse scaling of a bonded-sphere DEM model: Formulation and application to lignocellulosic biomass microstructures
Reverse scaling of a bonded-sphere DEM model: Formulation and application to lignocellulosic biomass microstructures Open
View article: On the Fidelity of Computational Models for the Flow of Milled Loblolly Pine: A Benchmark Study on Continuum-Mechanics Models and Discrete-Particle Models
On the Fidelity of Computational Models for the Flow of Milled Loblolly Pine: A Benchmark Study on Continuum-Mechanics Models and Discrete-Particle Models Open
The upstream of bioenergy industry has suffered from unreliable operations of granular biomass feedstocks in handling equipment. Computational modeling, including continuum-mechanics models and discrete-particle models, offers insightful u…
View article: X-ray computed tomography-based porosity analysis: Algorithms and application for porous woody biomass
X-ray computed tomography-based porosity analysis: Algorithms and application for porous woody biomass Open
View article: Assessment of a tomography-informed polyhedral discrete element modelling approach for complex-shaped granular woody biomass in stress consolidation
Assessment of a tomography-informed polyhedral discrete element modelling approach for complex-shaped granular woody biomass in stress consolidation Open
View article: A nonlinear elasto-plastic bond model for the discrete element modeling of woody biomass particles
A nonlinear elasto-plastic bond model for the discrete element modeling of woody biomass particles Open
View article: A Novel Method about the Representation and Discrimination of Traffic State
A Novel Method about the Representation and Discrimination of Traffic State Open
The representation and discrimination of various traffic states play an essential role in solving traffic accidents and congestion as the foundation of traffic state prediction. However, the existing representation of the traffic state usu…
View article: Discrete element modeling of switchgrass particles under compression and rotational shear
Discrete element modeling of switchgrass particles under compression and rotational shear Open
View article: The effect of laser sintering on the microstructure, relative density, and cracking of sol‐gel–derived silica thin films
The effect of laser sintering on the microstructure, relative density, and cracking of sol‐gel–derived silica thin films Open
Combining sol‐gel processing and laser sintering is a promising way for fabricating functional ceramic deposition with high dimensional resolution. In this work, crack‐free silica tracks on a silica substrate with a thickness from ~360 nm …
View article: Discrete element modeling of deformable pinewood chips in cyclic loading test
Discrete element modeling of deformable pinewood chips in cyclic loading test Open
View article: Selective Liberation of High-Phosphorous Oolitic Hematite Assisted by Microwave Processing and Acid Leaching
Selective Liberation of High-Phosphorous Oolitic Hematite Assisted by Microwave Processing and Acid Leaching Open
The release of valuable minerals from the associated gangues is called liberation. Good liberation is essential to the subsequent separation stage. Selective liberation is advantageous to improve the degree of liberation. Oolitic hematite …
View article: Fore-aft asymmetric flocking
Fore-aft asymmetric flocking Open
We show that fore-aft asymmetry, a generic feature of living organisms and some active matter systems, can have a strong influence on the collective properties of even the simplest flocking models. Specifically, an arbitrarily weak asymmet…
View article: Performance of overlapped shield tunneling through an integrated physical model tests, numerical simulations and real-time field monitoring
Performance of overlapped shield tunneling through an integrated physical model tests, numerical simulations and real-time field monitoring Open
In this work, deformations and internal forces of an existing tunnel subjected to a closely overlapped shield tunneling are monitored and analyzed using a series of physical model experiments and numerical simulations. Effects of different…
View article: Forward Automatic Differentiation for Numerically Exact Computation of Tangent Operators in Small- and Large-deformation Computational Inelasticity.
Forward Automatic Differentiation for Numerically Exact Computation of Tangent Operators in Small- and Large-deformation Computational Inelasticity. Open
View article: Collective motion of self-propelled particles with density-dependent switching effect
Collective motion of self-propelled particles with density-dependent switching effect Open
We study the effect of density-dependent angular response on large scale collective motion, that particles are more likely to switch their moving direction within lower local density region. We show that the presence of density-dependent a…
View article: A Cartesian parametrization for the numerical analysis of material instability
A Cartesian parametrization for the numerical analysis of material instability Open
Summary We examine four parametrizations of the unit sphere in the context of material stability analysis by means of the singularity of the acoustic tensor. We then propose a Cartesian parametrization for vectors that lie a cube of side l…
View article: ALBANY: USING COMPONENT-BASED DESIGN TO DEVELOP A FLEXIBLE, GENERIC MULTIPHYSICS ANALYSIS CODE
ALBANY: USING COMPONENT-BASED DESIGN TO DEVELOP A FLEXIBLE, GENERIC MULTIPHYSICS ANALYSIS CODE Open
Albany is a multiphysics code constructed by assembling a set of reusable, general components. It is an implicit, unstructured grid finite element code that hosts a set of advanced features that are readily combined within a single analysi…
View article: Albany v. 3.0
Albany v. 3.0 Open
The Albany code is a general-purpose finite element code for solving partial differential equations (PDEs). Albany is a research code that demonstrates how a PDE code can be built by interfacing many of the open-source software libraries t…