scholarly journals Finite element mesh improvement using an a priori local p-refinement for stress analysis of underground excavations

2020 ◽  
Vol 7 (1) ◽  
pp. 1769287
Author(s):  
D. Garcia Rosero ◽  
A.M. Zsaki
Keyword(s):  
Finite Element ◽  
Stress Analysis ◽  
A Priori ◽  
Finite Element Mesh ◽  
Underground Excavations ◽  
Element Mesh ◽  
Mesh Improvement

scholarly journals A Finite Element Mesh Aggregating Approach to Multiple-Source Reconstruction in Bioluminescence Tomography

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Jingjing Yu ◽  
Fang Liu ◽  
L. C. Jiao ◽  
Shuyuan Yang ◽  
Xiaowei He
Keyword(s):  
Finite Element ◽  
A Priori ◽  
Finite Element Mesh ◽  
Reconstruction Algorithms ◽  
Multiple Sources ◽  
Element Mesh ◽  
Reconstruction Process ◽  
Bioluminescence Tomography ◽  
Process Reconstruction

A finite element mesh aggregating approach is presented to reconstruct images of multiple internal bioluminescence sources. Rather than assuming independence between mesh nodes, the proposed reconstruction strategy exploits spatial structure of nodes and aggregation feature of density distribution on the finite element mesh to adaptively determine the number of sources and to improve the quality of reconstructed images. With the proposed strategy integrated in the regularization-based reconstruction process, reconstruction algorithms need no a priori knowledge of source number; even more importantly, they can automatically reconstruct multiple sources that differ greatly in density or power.

Finite element mesh refinement criteria for stress analysis

1990 ◽  
Vol 34 (2) ◽  
pp. 251-255 ◽  
Author(s):  
Madan G. Kittur ◽  
Ronald L. Huston
Keyword(s):  
Finite Element ◽  
Stress Analysis ◽  
Mesh Refinement ◽  
Finite Element Mesh ◽  
Element Mesh
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