Yade

tie particles together

Asked by xjin

I want to use spheres to simulate a line. I want to build them like this:
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O.bodies.append(sphere([0,0,0],1))
O.bodies.append(sphere([0,0,2],1))
O.bodies.append(sphere([0,0,4],1))
O.bodies.append(sphere([0,0,6],1))
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1. if i use appendClumped(), the final body is a rigid aggregate.I want to tie them by their contact point,and it is not rigid but soft?
2.In other words, they are tied togther but every particle work themselves.and they can not be easily divided.
Can you give me some suggestion?
Thanks a lot!

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Jérôme Duriez
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Best Jérôme Duriez (jduriez) said : 		#1

Hi,

You may look into defining cohesive (e.g. tensile resisting) interactions between the spheres, with CohFrictMat and related classes.

Note that there should be many papers in the DEM litterature that approximate structures with chains of spheres. The current YADE state of the art may be models using ChainedCylinders (now deprecated ?) and GridConnection (replacing the former) classes.

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xjin (jpeng22) said : 		#2

thanks

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xjin (jpeng22) said : 		#3

Thanks Jérôme Duriez, that solved my question.