LIGGGHTS for DEM analysis of fibre reinforced cohesive clay soils

Submitted by brilliant_idea on Fri, 01/15/2016 - 03:24

Hi

I am new to LIGGGHTS and would like to ask the possibility of using this tool for DEM analysis of fibre reinforced clay soils where we need to define physico-chemical interactions between two clay particles (i.e., Van der waals and double layer forces) . Is this package suitable for this purpose?

I will be really pleased if experts can give me an idea.

Kind Regards
Mehdi

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ckloss's picture

ckloss | Mon, 01/25/2016 - 22:39

Hi Mehdi,

I do not know about the "double layer forces" you mention, but if this is short-range, that should be doable to implement.
Any kind of short-range forces (say in the order of one particle diameter or less) can be conveniently implemented in LIGGGHTS, by implementing a new cohesion model

Best wishes
Christoph

NTT1508 | Fri, 01/29/2016 - 07:09

I suppose there are more completed issues which are required to deal with when modelling clay particles by DEM, a apart from cohesion interaction among particles. For example the size of clay particles is extremely small and that asks for a very large number of particles to be generated. Another problem is about the shape of clay particles which is not spherical. Anyway LIGGGHTS is great to add your own built model on it.