SIMULATION DEVICE, RECORDING MEDIUM STORING SIMULATION PROGRAM AND SIMULATION METHOD

摘要

For first neighboring particles located within a radius of influence of a reference particle of a continuum model expressing a continuum as a collection of particles, a first interaction between the reference particle and the first neighboring particle is calculated according to a kernel function and the position of the first neighboring particle after displacement of the continuum model. For second neighboring particles that have entered the radius of influence of the reference particle after the displacement occurred, a second interaction between the reference particle and the second neighboring particle is calculated according to the kernel function and the position of the second neighboring particle after displacement of the continuum model. An interaction between the reference particle and a current neighboring particle of the reference particle is calculated according to the first and second interactions. The deformation gradient tensor of the kernel function is used to calculate the first interaction.

主权项

1. A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process comprising:
for each of one or more first neighboring particles located within a radius of influence of a reference particle of a continuum model expressing a continuum as a collection of particles, calculating a first interaction between the reference particle and the first neighboring particle according to a kernel function and a position of the first neighboring particle after displacement of the continuum model; for each of one or more second neighboring particles that have entered the radius of influence of the reference particle after the displacement occurred, calculating a second interaction between the reference particle and the second neighboring particle according to the kernel function and a position of the second neighboring particle after displacement of the continuum model; and calculating an interaction between the reference particle and a current neighboring particle of the reference particle according to the first and second interactions, wherein the calculating of the first interaction includes using a deformation gradient tensor of the kernel function.