DEFINE_CURVE has di...
 
Notifications
Clear all

DEFINE_CURVE has discretization error

3 Posts
2 Users
0 Reactions
167 Views
Posts: 2
Topic starter
(@irjaw01)
Barista
Joined: 4 weeks ago

warning:

1."The discretization of the following load curves
has resulted in differences in value that exceed 10.00
percent of the median value of the load curve

Curve ID 1 has discretization error of
3.381493 which is 30.5 percent of its median"

2."ALE FSI coupling type 1,2,3 cannot couple with rigid

body parts. This check finds the slave contains rigid
body nodes. Please check *CONSTRAINED_LAGRANGE_IN_SOLID
master definition."
2 Replies




Posts: 2
Topic starter
(@irjaw01)
Barista
Joined: 4 weeks ago
1:I have created a stress-strain curve as follows:
image
image

 2:CONSTRAINED_LAGRANGE_IN_SOLID

image
image

 

 

Reply




Negative Volume
Posts: 667
Admin
(@negativevolume)
CEO
Joined: 6 years ago

So the easiest error to debug is that part ID 2 has rigid nodes somewhere. I assume the part material isn't rigid, but maybe you have some CNRB or nodal constraint somewhere on that part?

The curve error is probably due to the fact that you stress-strain curve is too bouncy. Aka the slope changes too much from point to point. You can try to smoothing your curve or even add nodes via interpolation to reduce the drastic slope changes. 

Reply







Share: