yade-users team mailing list archive

[Ahmed ELMEKATI <aelmikaty@xxxxxxxxx>]

I am trying to make a simple DEM code and my problem is related to the ball-wall contact. I have a horizontal wall on which i let a small ball to fall downwards. For some reason, the ball just passes through the wall although it should bounce on it. 

So my question is, in the DEM when a ball starts to be in contact with a wall, is the only thing to be evaluated the contact force between them or is there any other logic related to the kinematics of the impact?
-Ahmed


----- Original Message ----
From: Janek Kozicki <cosurgi@xxxxxxxxx>
To: yade-users@xxxxxxxxxxxxxxxx
Sent: Tuesday, November 14, 2006 6:42:20 AM
Subject: Re: [Yade-users] general question


Ahmed ELMEKATI said:     (by the date of Mon, 13 Nov 2006 21:27:13 -0800 (PST))

> Hello All,
> I have a general question in the DEM. In fact i am trying to make a small DEM program for a course project. I am having trouble with the ball-wall contact in a drop test where everytime the ball just crosses the wall. I have tried to change the stiffness properties to increase the contact force but still no effect. 
> 
> Am i missing something here other than evaluating the contact force and applying it to the ball. I know this question may seem primitive but things happen.


You are talking about the SDECImpactTest filegenerator? Your question
is not detailed enough, please provide more information :)

-- 
# Janek Kozicki
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