47 citations · 160 across the 13 of their papers we have counts for
13 papers
Unified sparse framework for large-scale simulations using the material point method
Yidong Zhao, Lars Blatny, Xiang Feng +3
The material point method (MPM) is a hybrid particle-grid method widely used for large deformation problems with history-dependent behavior, including geophysical mass flows. Stand…
Unstructured Moving Least Squares Material Point Methods: A Stable Kernel Approach With Continuous Gradient Reconstruction on General Unstructured Tessellations
Yadi Cao, Yidong Zhao, Minchen Li +4
The Material Point Method (MPM) is a hybrid Eulerian Lagrangian simulation technique for solid mechanics with significant deformation. Structured background grids are commonly empl…
Circumventing volumetric locking in explicit material point methods: A simple, efficient, and general approach
Yidong Zhao, Chenfanfu Jiang, Jinhyun Choo
The material point method (MPM) is frequently used to simulate large deformations of nearly incompressible materials such as water, rubber, and undrained porous media. However, MPM…
Hybrid continuum-discrete simulation of granular impact dynamics
Yupeng Jiang, Yidong Zhao, Clarence E. Choi +1
Granular impact -- the dynamic intrusion of solid objects into granular media -- is widespread across scientific and engineering applications including geotechnics. Existing approa…
A barrier method for frictional contact on embedded interfaces
Yidong Zhao, Jinhyun Choo, Yupeng Jiang +3
We present a barrier method for treating frictional contact on interfaces embedded in finite elements. The barrier treatment has several attractive features, including: (i) it does…
Devices for high precision x-ray beam intensity monitoring on BSRF
LI Hua-Peng, Kun Tang, Yi-Dong Zhao +4
Synchrotron radiation with the characteristic of high brilliance, high level of polarization, high collimation, low emittance and wide tunability in energy has been used as a stand…
Vacuum ultraviolet photon detector with continuously adjustable resolution for inverse photoemission spectroscopy
Shu-Hu Liu, Cai-Hao Hong, Yi-Dong Zhao +4
We present a vacuum ultraviolet (VUV) band-pass photon detector for inverse photoemission spectroscopy. A SrF2 window is used due to its high-energy cutoff of the optical transmiss…
A new method to suppress high-order harmonics for synchrotron radiation soft x-ray beamline
Zhi-Ying Guo, Cai-Hao Hong, Hai-Ying Xing +4
A feasible and convenient method has been proposed to suppress higher-harmonics for varied-line-spacing (VLS) plane grating monochromator in soft x-ray region. Related calculations…
A new soft X-ray magnetic circular dichroism facility at the BSRF beamline 4B7B
Zhi-Ying Guo, Cai-Hao Hong, Hai-Ying Xing +5
X-ray magnetic circular dichroism (XMCD) has become an important and powerful tool because it allows the study of material properties in combination with elemental specificity, che…
Determination of the forms of calcium present in coal chars by Ca K-edge XANES with Synchrotron Radiation
Lijuan Liu, Huijun Liu, Mingqi Cui +8
This work is concerned with the Ca transformations during the pyrolysis of Ca(OH)2 or CaCO3-added coals. Ca K-edge X-ray absorption near edge structure (XANES) spectroscopy was app…
Measurement of the polarization for soft x-ray magnetic circular dichroism at the BSRF beamline 4B7B
Guo Zhi-Ying, Xi Shi-Bo, Zhu Jing-Tao +6
Three ultra-short-period W/B4C multilayers (1.244nm, 1.235nm and 1.034nm) have been fabricated and used for polarization measurement at the 4B7B Beamline of Beijing Synchrotron Rad…
Improved measurement of the branching ratio of J/psi-->K_S K_L
J. Z. Bai
The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\pm 0.04\pm 0.13)\times 10^{-4}. using J/psi data collected with the Beij…
First Measurement of the Branching Fraction of the Decay psi(2S) --> tau tau
J. Z. Bai
The branching fraction of the psi(2S) decay into tau pair has been measured for the first time using the BES detector at the Beijing Electron-Positron Collider. The result is $B_{τ…