3-DIMENSIONAL NUMERICAL MODELING OF TUNNEL INDUCED DEFORMATION FIELD (NECATIBEY SUBWAY STATION, ANKARA, TURKEY)

2011 ◽  
Author(s):  
Ozgur Akturk
Keyword(s):  
Numerical Modeling ◽  
Deformation Field ◽  
Subway Station ◽  
3 Dimensional

3D Simulation of Foundation Excavation in a Subway Station

2012 ◽  
Vol 468-471 ◽  
pp. 781-784
Author(s):  
Jin Lu ◽  
Xiao Fan Liao
Keyword(s):  
Displacement Field ◽  
Three Dimensional ◽  
Deformation Field ◽  
Subway Station ◽  
Failure Zone ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
The Status ◽  
Practical Engineering ◽  
Variation Characteristics

According to an practical construction of an subway station, the foundation excavation three dimensional model was built by FLAC3D from the need of practical engineering. The status and variation characteristics of the displacement field, deformation field and plastic failure zone were obtained. Guiding significance was provided by the simulation.

3-Dimensional numerical modeling of geosynthetic-encased granular columns

2017 ◽  
Vol 45 (3) ◽  
pp. 131-141 ◽  
Author(s):  
Sunil Ranjan Mohapatra ◽  
K. Rajagopal ◽  
Jitendra Sharma
Keyword(s):  
Numerical Modeling ◽  
3 Dimensional

Numerical and Experimental Study of Preforming Stage in Tube Hydroforming

2014 ◽  
Vol 611-612 ◽  
pp. 1132-1138 ◽  
Author(s):  
Saeed Mojarad Farimani ◽  
Javad Gholipour Baradari ◽  
Henri Champliaud ◽  
Jean Savoie ◽  
Priti Wanjara
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Numerical Modeling ◽  
Lead Time ◽  
Process Development ◽  
Selective Laser Sintering ◽  
Tube Hydroforming ◽  
3 Dimensional ◽  
Starting Point ◽  
Good Agreement

The preforming stage in hydroforming of an aerospace generic shape was investigated using a combination of experimentation and numerical modeling. The preform die was manufactured using a rapid prototyping method, namely the selective laser sintering (SLS) process. The preforming experiments were conducted on 0.9 mm and 1.2 mm thick stainless steel 321 (SS321) tubes. To evaluate the preforming process, an automated deformation measurement system, ARGUS®, was used to measure the 3-dimensional (3D) strains on the deformed tubes. Data collected from the experiments were used to validate the simulation of the preforming stage. The simulation and experimental results were found to be in good agreement, indicating that the preform model can be used as a starting point for simulating the tube hydroforming (THF) process. In addition, the SLS approach was found to be very promising, as it reduced greatly the lead time and cost of process development for THF.

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