SPH Mesh

Smooth Particle Hydrodynamics (SPH), Finite Point Method (FPM) is a technique used to analyze bodies that do not have high cohesive forces among themselves and undergo large deformation, such as liquids and gases. Typical applications that use SPH FPM include: airbag modeling in crash, fuel tank slosh, bird strikes, and explosion analysis.

In SPH FPM, a given volume of the body of interest is discretized into particles, called SPH elements. SPH elements (called particles) are like nodes which do not have any geometric connectivity among themselves. Each SPH element has an effective mass. The mass sum of all particles in the filled volume of the body should be equal to the mass of the filled volume.

In HyperMesh, SPH elements are currently supported as 0D MASS elements. You can create SPH elements in HyperMesh using the following:

•	SPH Mesh panel (available in the RADIOSS, LS-DYNA, PAM-CRASH, and Abaqus Explicit user profiles)

•	SPH Meshing Tool (available in the Abaqus Explicit user profile)