2D Simulation and Validation of Rotary Tube Piercing Process

Author(s):  
E. Ceretti
2007 ◽  
Author(s):  
Elisabetta Ceretti ◽  
Claudio Giardini ◽  
Aldo Attanasio

Author(s):  
Cong-Binh Dinh ◽  
Shu-San Hsiau ◽  
Chien-Yuan Su ◽  
Meng-Yuan Tsai ◽  
Yi-Shun Chen ◽  
...  

2018 ◽  
Vol 55 (2) ◽  
pp. 427-436 ◽  
Author(s):  
Luis M. Bermúdez ◽  
Kevin J. Barnhart ◽  
Christopher W. Brunner

2015 ◽  
Vol 651-653 ◽  
pp. 627-632 ◽  
Author(s):  
Svetlana Ishkina ◽  
Bernd Kuhfuss ◽  
Christian Schenck

Rotary swaging is a well established cold forming process e.g. in the automotive industry. In order to modify the material properties by swaging systematically, a new process of swaging with asymmetrical strokes of the forming dies is investigated. The newly developed tools feature flat surfaces and do not represent the geometry of the formed part as in conventional swaging. Numerical simulation and physical tests are carried out with special regard to the resulting geometry, mechanical properties and the microstructure. During these tests copper wires with diameter d0=1 mm are formed. Regarding the microstructure in the longitudinal section of formed specimens, elongation of grains in the central part and grain size reduction in the boundary area are observed. Furthermore, this approach opens up new possibilities to configure the geometry of wires. 2D-simulation is applied and discussed in the paper to investigate change of the processed geometry (cross-section) and shear strain distribution during the rotary swaging process.


2010 ◽  
Vol 160-162 ◽  
pp. 1211-1216
Author(s):  
Zhuang Liu ◽  
Xiao Qing Wu

The impregnation stage of the Resin Transfer Moulding process can be simulated by solving the Darcy equations on a mould model, with a ‘macro-scale’ finite element method. For every element, a local ‘meso-scale’ permeability must be determined, taking into account the local deformation of the textile reinforcement. This paper demonstrates that the meso-scale permeability can be computed efficiently and accurately by using meso-scale simulation tools. We discuss the speed and accuracy requirements dictated by the macro-scale simulations. We show that these requirements can be achieved for two meso-scale simulators, coupled with a geometrical textile reinforcement modeller. The first solver is based on a finite difference discretisation of the Stokes equations, the second uses an approximate model, based on a 2D simulation of the flow.


Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1678
Author(s):  
Yuri A. Lebedev

Microwave discharges in dielectric liquids are a relatively new area of plasma physics and plasma application. This review cumulates results on microwave discharges in wide classes of liquid hydrocarbons (alkanes, cyclic and aromatic hydrocarbons). Methods of microwave plasma generation, composition of gas products and characteristics of solid carbonaceous products are described. Physical and chemical characteristics of discharge are analyzed on the basis of plasma diagnostics and 0D, 1D and 2D simulation.


2015 ◽  
Vol 49 (6) ◽  
pp. 2181-2185 ◽  
Author(s):  
Deepak Adhikary ◽  
Manoj Khanal ◽  
Chandana Jayasundara ◽  
Rao Balusu

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