(398aj) Numerical Simulation of Interaction of Solid Particles With Elastic Bodies By a Lagrangian-Lagrangian Approach

Interaction between
solid particles with elastic bodies often occurs in industrial products, for
example powder conveying using rubber tubes or blade-cleaning process. In such
processes, elastic bodies, or rubberlike material often changes their shape
extremely large. It is difficult to acquire the internal information of elastic
bodies in such processes by experiments, and the methodology of contact problem
of elastic bodies with large deformation has been not established because
Finite Element Method, the conventional structural analysis method, has a
difficulty of simulating both of contact problems and large deformation analysis.
Therefore development of a method that can deal with such phenomena is expected
in industrial area.

Accordingly, we
developed the coupled analysis method using Finite Deformation theory based
Particle Method (FD-PM), which was developed on the assumption of large
deformation and Discrete Element Method (DEM) as the model to represent contact
between solid particles with elastic bodies. The extra algorithm is not
required to combine these two methods because FD-M and DEM are both Lagrangian methods. Numerical simulations were executed for
validation. The deformation of the elastic bodies was measured and the results
of the simulations corresponded with experiments at the same scale.