LAMMPS Granular - Are Stiffness and Size Coupled?

Hello all! Thank you for reading my message. I am a beginner to the LAMMPS granular package.

I cannot find any information on this topic, apologies if this is an obvious question. Does change in size of a granular particle during simulation have an impact on the stiffness (or other properties) of the particle?

Thanks very much for you help.

The properties of a particle are set by the choice of pair_style and pair_coeff settings and arguments.

The only properties that are set otherwise are diameter (and thus volume) and density (and thus combined with diameter it sets the mass). These two are set via data file or set command or use some default value.

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