A wall didn't rotate by setting its angularvelocity
Hello:)
I found an example code of triaxial test. It uses 'aabbwalls’ and 'triaxialstress
from yade import pack
#######
### DEFINING VARIABLES AND MATERIALS ###
#######
# The following 5 lines will be used later for batch execution
nRead=readParam
num_spheres=1000,# number of spheres
compFricDegree = 30, # contact friction during the confining phase
key='_
unknownOk=True
)
from yade.params import table
num_spheres=
key=table.key
targetPorosity = 0.43 #the porosity we want for the packing
compFricDegree = table.compFricD
finalFricDegree = 30 # contact friction during the deviatoric loading
rate=-0.02 # loading rate (strain rate)
damp=0.2 # damping coefficient
stabilityThresh
young=5e6 # contact stiffness
mn,mx=Vector3(
## create materials for spheres and plates
O.materials.
O.materials.
## create walls around the packing
walls=aabbWalls
wallIds=
## use a SpherePack object to generate a random loose particles packing
sp=pack.
clumps=False #turn this true for the same example with clumps
if clumps:
## approximate mean rad of the futur dense packing for latter use
volume = (mx[0]-
mean_rad = pow(0.09*
## define a unique clump type (we could have many, see clumpCloud documentation)
c1=pack.
## generate positions and input them in the simulation
sp.makeClumpCl
sp.toSimulatio
O.bodies.
else:
sp.makeCloud(
O.bodies.
#or alternatively (higher level function doing exactly the same):
#sp.toSimulati
#######
### DEFINING ENGINES ###
#######
triax=TriaxialS
## TriaxialStressC
## this control of boundary conditions was used for instance in http://
maxMultiplier=
finalMaxMultip
thickness = 0,
## switch stress/strain control using a bitmask. What is a bitmask, huh?!
## Say x=1 if stess is controlled on x, else x=0. Same for for y and z, which are 1 or 0.
## Then an integer uniquely defining the combination of all these tests is: mask = x*1 + y*2 + z*4
## to put it differently, the mask is the integer whose binary representation is xyz, i.e.
## "100" (1) means "x", "110" (3) means "x and y", "111" (7) means "x and y and z", etc.
stressMask = 7,
internalCompac
)
newton=
O.engines=[
ForceResetter(),
InsertionSortC
InteractionLoop(
[Ig2_
[Ip2_
[Law2_
),
## We will use the global stiffness of each body to determine an optimal timestep (see https:/
GlobalStiffnes
triax,
TriaxialStateR
newton
]
#Display spheres with 2 colors for seeing rotations better
Gl1_Sphere.
if nRead==0: yade.qt.
## UNCOMMENT THE FOLLOWING SECTIONS ONE BY ONE
## DEPENDING ON YOUR EDITOR, IT COULD BE DONE
## BY SELECTING THE CODE BLOCKS BETWEEN THE SUBTITLES
## AND PRESSING CTRL+SHIFT+D
#######
### APPLYING CONFINING PRESSURE ###
#######
#the value of (isotropic) confining stress defines the target stress to be applied in all three directions
triax.goal1=
#######
### APPLYING angular velocity ###
#######
angvel=
angvel[0]=0.1
Question information
- Language:
- English Edit question
- Status:
- Expired
- For:
- Yade Edit question
- Assignee:
- No assignee Edit question
- Last query:
- Last reply: