Modelling of orthogonal cutting processes with the method of smoothed particle hydrodynamics

2013 ◽  
Vol 7 (6) ◽  
pp. 639-645 ◽  
Author(s):  
Uwe Heisel ◽  
Wiliam Zaloga ◽  
Dmitrii Krivoruchko ◽  
Michael Storchak ◽  
Liubov Goloborodko
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Orthogonal Cutting ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Cutting Processes

Simulation des orthogonalen Zerspanens mit LS-Dyna*/Simulation of the orthogonal cutting process with LS-Dyna - Comparison of Lagrangian-, Eulerian- and SPH cutting models

2017 ◽  
Vol 107 (01-02) ◽  
pp. 34-38
Author(s):  
M. Storchak ◽  
F. Diemer
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Wide Spectrum ◽  
Orthogonal Cutting ◽  
Cutting Process ◽  
Eulerian Model ◽  
Advantages And Disadvantages ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Cutting Processes ◽  
Cutting Model

Immer häufiger kommen Simulationsergebnisse zur Optimierung von Zerspanprozessen zum Einsatz. Dabei wird ein sehr breites Spektrum verschiedener Techniken und Algorithmen verwendet. Für die entsprechende Auswahl muss der Anwendungsingenieur eine Überprüfung der Vor- und Nachteile der verschiedenen Algorithmen bei der Erstellung und Verwendung der numerischen Zerspanmodelle in Bezug auf den jeweils vorliegenden Zerpanprozess vornehmen. In diesem Artikel werden unterschiedliche Berechnungs- und Ansatzalgorithmen anhand von vier Zerspanmodellen – Lagrange‘sches Modell mit und ohne Remeshing, Euler’sches Modell und SPH (Smoothed Particle Hydrodynamics)-Modell – erarbeitet und miteinander sowie mit den experimentell gewonnenen Daten verglichen.   More and more results from simulations are being used to optimize cutting processes. To accomplish this, a very wide spectrum of different techniques and algorithms is applied. The engineer is required to find the advantages and disadvantages of the different algorithms used for development and employment in the numerical cutting model. This paper compares different calculation and approach algorithms on the basis of four different cutting models - Lagrange model with and without Remeshing, Eulerian model and SPH (Smoothed Particle Hydrodynamics)-model - as well as experimentally gained data.

scholarly journals Smoothed Particle Hydrodynamics Simulation of Orthogonal Cutting with Enhanced Thermal Modeling

2021 ◽  
Vol 11 (3) ◽  
pp. 1020
Author(s):  
Mohamadreza Afrasiabi ◽  
Hagen Klippel ◽  
Matthias Roethlin ◽  
Konrad Wegener
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Metal Cutting ◽  
Thermal Modeling ◽  
Orthogonal Cutting ◽  
Detection Algorithm ◽  
Mesh Free ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Boundary Treatments ◽  
Cutting Problems

Smoothed Particle Hydrodynamics (SPH) is a mesh-free numerical method that can simulate metal cutting problems efficiently. The thermal modeling of such processes with SPH, nevertheless, is not straightforward. The difficulty is rooted in the computationally demanding procedures regarding convergence properties and boundary treatments, both known as SPH Grand Challenges. This paper, therefore, intends to rectify these issues in SPH cutting models by proposing two improvements: (1) Implementing a higher-order Laplacian formulation to solve the heat equation more accurately. (2) Introducing a more realistic thermal boundary condition using a robust surface detection algorithm. We employ the proposed framework to simulate an orthogonal cutting process and validate the numerical results against the available experimental measurements.

Simulation Research on Cutting Process of Single Abrasive Grain

2011 ◽  
Vol 239-242 ◽  
pp. 3123-3126 ◽  
Author(s):  
Chong Su ◽  
Li Da Zhu ◽  
Wan Shan Wang
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Interaction Method ◽  
Workpiece Material ◽  
Advantages And Disadvantages ◽  
Abrasive Grain ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Smoothed Particle Hydrodynamics Method ◽  
Cutting Processes ◽  
Fluid Solid Interaction

Cutting processes of single abrasive grain were simulated respectively by fluid-solid interaction method and Smoothed Particle Hydrodynamics method. Advantages and disadvantages of the two methods were compared. Smoothed Particle Hydrodynamics method is superior to fluid-solid interaction method in simulating the deformation behavior of workpiece material for the motion of SPH particles. According to the simulation results, it is concluded that workpiece material occurs plastic deformation, flows to the side and front owing to the extrusion of abrasive grain, and finally forms chip in front of abrasive grain.

Simulation of boring by smoothed particle hydrodynamics method

2021 ◽  
Vol 103 (3) ◽  
pp. 13-22
Author(s):  
Maksym Shykhalieiev
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Software Package ◽  
Workpiece Material ◽  
Explicit Statement ◽  
Highly Nonlinear ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Smoothed Particle Hydrodynamics Method ◽  
Cutting Processes ◽  
Empirical Coefficients

The possibility of applying the smoothed particle hydrodynamics method for modeling of cutting processes on the example of multi-blade boring of holes is considered in this paper. Highly nonlinear LS-Dyna solver with an explicit statement of the dynamic modeling problem is used as a software package for modeling. Johnson-Cook formulation with the corresponding empirical coefficients for each material is used as the model of the workpiece material. Absolutely solid tool is used to simplify the model. The kinematic scheme of the tool rotation is implemented using the keyword INITIAL_VELOCITY_GENERATION. The simulation results obtained in the software package are presented in the form of graphs.

Simulation de l'écoulement au cours du procédé de rotomoulage par la méthode Smoothed Particle Hydrodynamics (SPH)

2008 ◽  
Vol 96 (6) ◽  
pp. 263-268 ◽  
Author(s):  
E. Mounif ◽  
V. Bellenger ◽  
A. Ammar ◽  
R. Ata ◽  
P. Mazabraud ◽  
...  
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Particle Hydrodynamics ◽  
Smoothed Particle
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