Yushan Ni
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View article: Improving the prediction accuracy of aircraft engine non-volatile particulate matter emission indices through deep learning model
Improving the prediction accuracy of aircraft engine non-volatile particulate matter emission indices through deep learning model Open
View article: A novel interfacial resistance-free bifunctional camouflage device in thermal–electric fields
A novel interfacial resistance-free bifunctional camouflage device in thermal–electric fields Open
A novel interfacial resistance-free (IRF) bifunctional camouflage (transparent and invisible) device is proposed in this paper. The thermal and electric conductivities of the shell and background are the same to eliminate the interfacial r…
View article: Temperature effect on nanotwinned Ni under nanoindentation using molecular dynamic simulation
Temperature effect on nanotwinned Ni under nanoindentation using molecular dynamic simulation Open
Temperature effect on atomic deformation of nanotwinned Ni (nt-Ni) under localized nanoindentation is investigated in comparison with nanocrystalline Ni (nc-Ni) through molecular simulation. The nt-Ni exhibits enhanced critical load and ha…
View article: Omnidirectional thermal-electric signatures of functional illusion device with anisotropic geometry
Omnidirectional thermal-electric signatures of functional illusion device with anisotropic geometry Open
View article: Design of an omnidirectional camouflage device with anisotropic confocal elliptic geometry in thermal-electric field
Design of an omnidirectional camouflage device with anisotropic confocal elliptic geometry in thermal-electric field Open
The designed confocal elliptical core-shell structure can realize the omnidirectional camouflage effect without disturbing temperature and electric potential profiles as the directions of heat flux and electric current change. Based on the…
View article: Synergy Effect and Symmetry-Induced Enhancement Effect of Surface Multi-Defects on Nanohardness by Quasi-Continuum Method
Synergy Effect and Symmetry-Induced Enhancement Effect of Surface Multi-Defects on Nanohardness by Quasi-Continuum Method Open
The quasicontinuum method has been applied to probe the thin film with surface multi-defects, which is commonly seen in nanoimprint technique and bulk micromachining. Three unilaterally distributed multi-defect models and six bilaterally d…
View article: Assessment of predicted aircraft engine non-volatile particulate matter emissions at Hangzhou Xiaoshan International Airport using an integrated method
Assessment of predicted aircraft engine non-volatile particulate matter emissions at Hangzhou Xiaoshan International Airport using an integrated method Open
Assessing the aircraft engine nonvolatile particulate matter (nvPM) emissions during landing and take-off (LTO) cycles is significant for airport air quality management. However, presently few prior studies have examined aircraft engine nv…
View article: Shape Effect of Surface Defects on Nanohardness by Quasicontinuum Method
Shape Effect of Surface Defects on Nanohardness by Quasicontinuum Method Open
Nanoindentation on a platinum thin film with surface defects in a rectangular shape and triangular shape was simulated using the quasicontinuum method to study the shape effect of surface defects on nanohardness. The results show that the …
View article: Atomistic Study of Interactions between Intrinsic Kink Defects and Dislocations in Twin Boundaries of Nanotwinned Copper during Nanoindentation
Atomistic Study of Interactions between Intrinsic Kink Defects and Dislocations in Twin Boundaries of Nanotwinned Copper during Nanoindentation Open
In order to study the effects of kink-like defects in twin boundaries on deformation mechanisms and interaction between dislocations and defects in twin boundaries under localized load, nanotwinned Cu with two defective twin (TDT) boundari…
View article: Multiscale Simulation of Surface Defect Influence in Nanoindentation by a Quasi-Continuum Method
Multiscale Simulation of Surface Defect Influence in Nanoindentation by a Quasi-Continuum Method Open
Microscopic properties of crystal aluminum thin film have been investigated using the quasi-continuum method in order to study the influence of surface defects in nanoindentation. Various distances between the surface pit defect and indent…
View article: Multiscale Simulation of Surface Defects Influence Nanoindentation by a Quasi-Continuum Method
Multiscale Simulation of Surface Defects Influence Nanoindentation by a Quasi-Continuum Method Open
Microscopic properties of nanocrystal aluminum thin film have been investigated using the quasicontinuum method in order to study the influence of surface defects in nanoindentation. Various distances between the surface defect and indente…
View article: Multiscale Analysis of Size Effect of Surface Pit Defect in Nanoindentation
Multiscale Analysis of Size Effect of Surface Pit Defect in Nanoindentation Open
The nanoindentation on a pit surface has been simulated using the quasicontinuum method in order to investigate the size effect of surface pit defect on the yield load of thin film. Various widths and heights of surface pit defect have bee…
View article: Multiscale Simulation of Surface Defect Influence in Nanoindentation by the Quasi-Continuum Method
Multiscale Simulation of Surface Defect Influence in Nanoindentation by the Quasi-Continuum Method Open
Microscopic properties of nanocrystal Aluminum thin film have been simulated using the quasicontinuum method in order to study the surface defect influence in nanoindentation. Various distances between the surface defect and indenter have …
View article: The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation
The Effect of the Vertex Angles of Wedged Indenters on Deformation during Nanoindentation Open
In order to study the effect of the angle of wedged indenters during nanoindentation, indenters with half vertex angles of 60°, 70° and 80° are used for the simulations of nanoindentation on FCC aluminum (Al) bulk material by the multiscal…
View article: Thermal cloak-concentrator
Thermal cloak-concentrator Open
For macroscopically manipulating heat flow at will, thermal metamaterials have opened a practical way, which possesses a single function, such as either cloaking or concentrating the flow of heat even though environmental temperature varie…
View article: Multiscale simulations and ductile-brittle analyses of the atomistic cracks in BCC Ta, Fe and W
Multiscale simulations and ductile-brittle analyses of the atomistic cracks in BCC Ta, Fe and W Open
In order to better understand the fracture mechanism of body-centered-cubic (BCC) metal, the multiscale quasi-continuum method (QC) is employed to analyze the nano-sized mode I cracks of three kinds of BCC metal materials, i.e., Ta, Fe and…
View article: Nonlinear transformation thermotics: From switchable thermal cloaks to macro thermal diodes
Nonlinear transformation thermotics: From switchable thermal cloaks to macro thermal diodes Open
The macroscopic control of ubiquitous heat flow remains poorly explored due to the lack of a fundamental theoretical method. Here, by establishing temperature-dependent transformation thermotics for treating materials whose conductivity de…
View article: Temperature-dependent transformation thermotics: From switchable thermal cloaks to macroscopic thermal diodes
Temperature-dependent transformation thermotics: From switchable thermal cloaks to macroscopic thermal diodes Open
The macroscopic control of ubiquitous heat flow remains poorly explored due to the lack of a fundamental theoretical method. Here, by establishing temperature-dependent transformation thermotics for treating materials whose conductivity de…