Multi-scale Numerical Simulation and 3D Modeling for Deep Mineral Exploration in the Jiaojia Gold District, China

2019 ◽  
Vol 29 (1) ◽  
pp. 415-438 ◽  
Author(s):  
Leilei Huang ◽  
Gongwen Wang ◽  
Emmanuel John M. Carranza ◽  
Jingguo Du ◽  
Junjian Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
3D Modeling ◽  
Mineral Exploration ◽  
Multi Scale

Numerical Analysis Concerning the Harmfulness of Crack Turbine Rotors Using a Multi-Scale Approach Based on a Dynamic Finite Element Method

2014 ◽  
Vol 656 ◽  
pp. 315-324
Author(s):  
Anh Tuan Dau ◽  
Ionel Nistor ◽  
Adinel Gavrus
Keyword(s):  
Numerical Simulation ◽  
Finite Elements ◽  
3D Modeling ◽  
Fast Response ◽  
Industrial System ◽  
Multi Scale ◽  
Dynamic Finite Element ◽  
Numerical Tools ◽  
Healthy Part ◽  
Industrial Context

This work is placed in the context of the simulation of the behavior and the harmfulness of cracked rotors by Electricité de France (EDF) in order to evaluate its impact on the industrial system. Several numerical tools have been developed by the Research and Development Division of EDF and a feasibility study was conducted to prove its capacities to simulate the behavior of a rotor subject to a crack. Since the industrial context request fast response to such situation, the numerical simulation must be performed as quickly as possible. For this reason a multi-scale 1D-3D modeling has been proposed: the healthy part of the rotor is modeled by reduced Timoshenko beam finite elements since the part including the crack is modeled by 3D finite elements. The aim of the work is to prove the accuracy of this multi-scale approach, its feasibility and its CPU performance.

Multi-scale numerical simulation of impact failure for cylindrical CFRP

2020 ◽  
Vol 30 (sup1) ◽  
pp. 19-38 ◽  
Author(s):  
Yusuke Sawamura ◽  
Yuta Yamazaki ◽  
Satoru Yoneyama ◽  
Jun Koyanagi
Keyword(s):  
Numerical Simulation ◽  
Impact Failure ◽  
Multi Scale

scholarly journals A numerical simulation model for multi-scale flow in tight oil reservoirs

2017 ◽  
Vol 44 (3) ◽  
pp. 446-453 ◽  
Author(s):  
Wenchao FANG ◽  
Hanqiao JIANG ◽  
Junjian LI ◽  
Qing WANG ◽  
John KILLOUGH ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Oil Reservoirs ◽  
Tight Oil ◽  
Multi Scale ◽  
Tight Oil Reservoirs

Applications of Multi-Scale Models to Numerical Simulation and Experimental Analysis of Anisotropic Elastoplastic Behavior of Metallic Sheets

2014 ◽  
Vol 611-612 ◽  
pp. 536-544 ◽  
Author(s):  
Walid Nasri ◽  
Adinel Gavrus ◽  
Afia Kouadri-David ◽  
Kacem Sai
Keyword(s):  
Numerical Simulation ◽  
Numerical Simulations ◽  
Experimental Analysis ◽  
Tension Test ◽  
Thin Sheets ◽  
Elastoplastic Behavior ◽  
Multi Scale ◽  
Drawing Test ◽  
Scale Models ◽  
Deep Drawing Test

In this paper anisotropic mechanical behavior of AA2024 aluminum and Ti6Al4V titanium alloys were studied using three different approaches: unified, multi-mechanism and polycrystalline. The theoretical formulations of studied elastoplastic models are first described. Thereafter, some numerical results concerning the simulation of a uniaxial tension test applied to thin metallic sheets are presented. Comparison between experimental results (taken from the literature) and numerical simulations shows that the multi-mechanism and polycrystalline models describe slightly better the anisotropy when considering all the directions. Finally, numerical simulations of a deep drawing test of AA2024 aluminum thin sheets will be analyzed.

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