scholarly journals Lithospheric flexural isostasy background of the 2017 Ms7.0 Jiuzhaigou earthquake and its implications for material extrusion in the northeastern Bayan Har block

2022 ◽  
pp. 229209
Author(s):  
Minzhang Hu ◽  
Yunlong Wu ◽  
Bin Zhao ◽  
Hongtao Hao ◽  
Xinlin Zhang ◽  
...  
Keyword(s):  
Jiuzhaigou Earthquake ◽  
Material Extrusion ◽  
Bayan Har

Tomographic imaging of the 2017 Ms7.0 Jiuzhaigou earthquake source region and its implications on material extrusion in the northeast Tibetan plateau

2019 ◽  
Vol 752 ◽  
pp. 24-34 ◽  
Author(s):  
Muhammad Shahid Riaz ◽  
Yong Zheng ◽  
Fang Liu ◽  
Sijia Zeng ◽  
Wang Kai ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Source Region ◽  
Tomographic Imaging ◽  
Earthquake Source ◽  
Jiuzhaigou Earthquake ◽  
Material Extrusion

scholarly journals Lithospheric Flexural Isostasy Background of the 2017 Ms7.0 Jiuzhaigou Earthquake and Its Implications on Material Extrusion in the Northeastern Bayan Har Block

2020 ◽  
Author(s):  
Minzhang Hu ◽  
Yunlong Wu ◽  
Hongtao Hao ◽  
Jiapei Wang ◽  
Jian Wang ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Gravity Anomalies ◽  
Seismogenic Zone ◽  
Jiuzhaigou Earthquake ◽  
The North ◽  
Spectral Technique ◽  
Eastern Tibet ◽  
The Sichuan Basin ◽  
Fault Belt ◽  
Bayan Har

Abstract We applied a 2-dimensional, non-spectral technique to investigate the spatial variations of the lithospheric effective elastic thickness (Te) in the eastern Bayan Har block and its adjacent areas. Te values were determined by comparison of observed and flexural modelled Bouguer gravity anomalies. The results suggested that Te vary significantly from eastern Tibet to the Sichuan basin. The eastern Bayan Har block and northern Sichuan-Yunan block had low Te (0<Te<20km), indicated easily deformable lithosphere. The Sichuan basin had high Te (40km<Te<100km), and acted as a rigid block which resisted the eastward extrusion of plateau materials. Moderate Te (30km<Te<40km) under the Longmen Shan fault belt indicated that the lithosphere of the Sichuan basin plays an important role in supporting the Longmen Shan topography. The extremely low Te (Te<10km) in the seismogenic zone of the Ms7.0 Jiuzhaigou earthquake indicated that the topography is compensated locally, different from the Longmen Shan significantly. A banded relatively low Te (<40km) region stretched from northeastern Bayan Har block to southwestern Ordos block sketches out a plateau material escaping channel, questions the exiting of crustal flow in the north side of the Sichuan basin.

scholarly journals Thermal Simulation and Warping Deformation Experimental Study of PEEK in Material Extrusion

2021 ◽  
Vol 30 (2) ◽  
pp. 2170003
Author(s):  
Jiang Han ◽  
Ju Tong ◽  
Xiaoqing Tian ◽  
Lian Xia ◽  
Dingyifei Ma
Keyword(s):  
Experimental Study ◽  
Thermal Simulation ◽  
Material Extrusion

scholarly journals Research on Curved Layer Slicing and Spatial Path Generation Method in Five-axis Material Extrusion Process

2021 ◽  
Vol 1884 (1) ◽  
pp. 012013
Author(s):  
Anpei Li ◽  
Lianggang Li ◽  
Yaxiong Liu ◽  
Bin Cui ◽  
Yongkang Li ◽  
...  
Keyword(s):  
Extrusion Process ◽  
Path Generation ◽  
Material Extrusion ◽  
Five Axis

scholarly journals From scenario-based seismic hazard to scenario-based landslide hazard: rewinding to the past via statistical simulations

2021 ◽  
Author(s):  
Luguang Luo ◽  
Luigi Lombardo ◽  
Cees van Westen ◽  
Xiangjun Pei ◽  
Runqiu Huang
Keyword(s):  
Ground Motion ◽  
Land Use Planning ◽  
Landslide Susceptibility ◽  
Additive Model ◽  
Slope Instability ◽  
Susceptibility Map ◽  
Jiuzhaigou Earthquake ◽  
Full Spectrum ◽  
The Past ◽  
Time Invariant

AbstractThe vast majority of statistically-based landslide susceptibility studies assumes the slope instability process to be time-invariant under the definition that “the past and present are keys to the future”. This assumption may generally be valid. However, the trigger, be it a rainfall or an earthquake event, clearly varies over time. And yet, the temporal component of the trigger is rarely included in landslide susceptibility studies and only confined to hazard assessment. In this work, we investigate a population of landslides triggered in response to the 2017 Jiuzhaigou earthquake ($$M_w = 6.5$$ M w = 6.5 ) including the associated ground motion in the analyses, these being carried out at the Slope Unit (SU) level. We do this by implementing a Bayesian version of a Generalized Additive Model and assuming that the slope instability across the SUs in the study area behaves according to a Bernoulli probability distribution. This procedure would generally produce a susceptibility map reflecting the spatial pattern of the specific trigger and therefore of limited use for land use planning. However, we implement this first analytical step to reliably estimate the ground motion effect, and its distribution, on unstable SUs. We then assume the effect of the ground motion to be time-invariant, enabling statistical simulations for any ground motion scenario that occurred in the area from 1933 to 2017. As a result, we obtain the full spectrum of potential coseismic susceptibility patterns over the last century and compress this information into a hazard model/map representative of all the possible ground motion patterns since 1933. This backward statistical simulations can also be further exploited in the opposite direction where, by accounting for scenario-based ground motion, one can also use it in a forward direction to estimate future unstable slopes.

scholarly journals Finite Element Method modeling of Additive Manufactured Compressor Wheel

2021 ◽  
Author(s):  
Márton Tamás Birosz ◽  
Mátyás Andó ◽  
Sudhanraj Jeganmohan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Method Simulation ◽  
Element Model ◽  
Tensile Tests ◽  
Raw Material ◽  
Isotropic Hardening ◽  
Compressor Wheel ◽  
Material Extrusion ◽  
Element Method

AbstractDesigning components is a complex task, which depends on the component function, the raw material, and the production technology. In the case of rotating parts with higher RPM, the creep and orientation are essential material properties. The PLA components made with the material extrusion process are more resistant than VeroWhite (material jetting) and behave similarly to weakly cross-linked elastomers. Also, based on the tensile tests, Young’s modulus shows minimal anisotropy. Multilinear isotropic hardening and modified time hardening models are used to create the finite element model. Based on the measurements, the finite element method simulation was identified. The deformation in the compressor wheel during rotation became definable. It was concluded that the strain of the compressor wheel manufactured with material extrusion technology is not significant.

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