Learning Forum

[michele.russo11]

Hello

I'm trying to calculate the archard’s wear from a contact between a brake pad on a disc. I succeeded in the case of a block that slides linearly on a flat surface. Now with a pad that crawls along a circular trajectory, with the same settings, I can't get any information. To activate archard’s wear according I acted in the following way:


1) In the contact tab I have inserted a command file:

with those commands:

keyopt,cid,5,1 !close gap with an auto contact surface offset
keyopt,cid,10,2 !contact stiffness update

H=10e-13
K=1
m=0,8
n=1,3
TB,wear,cid,,,ARCD
TBDATA,1,H,K,m,n

NLADAPTIVE,all,add,contact,wear,0.5
NLADAPTIVE,all,on,all,all,1,,4
NLADAPTIVE,all,list,all,all

2) In the results tab I have entered a user defined result with the following settings:

In the exercise with the  block sliding linearly it brings me results, while in the exercise with the sliding pad in a circular trajectory it reports the following errors:

They are warnings, the exercise goes to convergence. I also have a note to make, if I don't activate Archard, in the same exercise, those warnings DOES NOT appear.  

[Kaushal Vadnere]

Hi, 
Make sure that you've set 'Contact Data','General Miscellaneous' & 'Contact Miscellaneous' to YES. in the Analysis Settings > Output Controls 

Let me know if this helps.

[zs24025116]

Hi michele.russo11
Did you solve the problem? I´m currently working on the same wear analysis for a pin-on-disc contact. How can I contact you?
Thank you