SPHinx-POWDER
SPH Institute Co., Ltd.

About This Product

■SPH particle method coupled analysis theory for powder analysisWhen compression molding powder, there are relatively large voids between powder particles at the initial stage, so powder particles are considered as isolated particles (discontinuum) and analyzed using the discrete element method (DEM). I will. 

Once the compaction progresses and the powder particles become sufficiently packed and integrated (continuum), the analysis is continued using the SPH particle method, that is, a coupled analysis method of DEM and SPH particle method. By using , it is possible to accurately evaluate the behavior of compressible powder considering heat, as well as perform agitation analysis of flowing powder.

In comparison with experiments, we were able to obtain a fairly accurate relative density distribution that could not be obtained using a combination of conventional DEM and finite element method (FEM), making it possible to perform stress/strain distribution and plasticity analysis. It has the following characteristics.

■Basic concept of SPH particle methodThe SPH particle method is a mesh-free analysis method that does not require elements in FEM or grids in FDM. The original continuum is discretized and regarded as particles, that is, collections of microscopic material elements with mass and dimensions, and the forces and thermal changes applied to the original continuum are calculated by the interaction of forces acting between particles. or heat conduction. The behavior of the particle of interest (evaluation point) is subjected to a mathematical operation (Kernel integration*) of surface interpolation/spherical interpolation using the physical quantities of other particles within the radius of influence, and finally it is made continuous again. By using field approximation (Smoothing), we can simulate (analyze) the deformation, stress distribution, heat conduction, etc. of a continuum.

Interpolation of physical quantities using a kernel function (weighting function) The Eulerian method, which fixes a grid in space and is used in FEM and FDM, is suitable for analyzes that handle motion over a wide range such as fluid analysis, but it There are problems in that it is not possible to trace the history of each part, and it is difficult to ensure the accuracy of the advection term. The SPH particle method is an excellent analysis technique that can compensate for the problems mentioned above by describing the various motions of a continuum using a Lagrangian method that tracks each part of the continuum over time.

■Features・Introduced coupled analysis method of DEM-SPH particle method
- Accurately evaluate the behavior of compressible powder considering heat
・Can perform stirring analysis of flowing powder
・High-speed analysis of large-scale problems using parallel calculation using GPGPU

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SPHinx-POWDER

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SPH Institute Co., Ltd.

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1 Models of SPHinx-POWDER

Image	Part Number	Price (excluding tax)	Analysis function	Usage environment
	SPHinx-POWDER	Available upon quote	Compression molding analysis, powder heat transfer analysis, powder deformation analysis, powder fracture analysis, stirring analysis	Windows XP or later, Red Hat Linux, GPU (GeForce, Tesla series)

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Price (excluding tax)

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SPHinx-POWDER

Available upon quote

Compression molding analysis, powder heat transfer analysis, powder deformation analysis, powder fracture analysis, stirring analysis

Windows XP or later, Red Hat Linux, GPU (GeForce, Tesla series)

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SPH Institute Co., Ltd.

Japan

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SPHinx-POWDER SPH Institute Co., Ltd.

About This Product

■SPH particle method coupled analysis theory for powder analysis

■Basic concept of SPH particle method

■Features

1 Models of SPHinx-POWDER

SPHinx-POWDER

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SPHinx-POWDER
SPH Institute Co., Ltd.