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[veerawat <question688643@xxxxxxxxxxxxxxxxxxxxx>]

Question #688643 on Yade changed:
https://answers.launchpad.net/yade/+question/688643

    Status: Solved => Open

veerawat is still having a problem:
I want to make a model bearing capacity  of soil . But I can’t  resize
the pressure wall. I want to resize the pressed wall, what to do?

This is my code#######

from yade import pack

sp=pack.SpherePack()
## corners of the initial packing
mn,mx=Vector3(0,0,0),Vector3(10,10,10)

## box size, radius, number of ball
sp.makeCloud(minCorner=mn,maxCorner=mx,rRelFuzz=.1,num=1500)

## create material #0, which will be used as default
O.materials.append(FrictMat(young=15000000,poisson=.4,frictionAngle=radians(30),density=2600,label='spheres'))
O.materials.append(FrictMat(young=15000000,poisson=.4,frictionAngle=0,density=0,label='frictionless'))


## copy spheres from the packing into the scene
## use default material, don't care about that for now
O.bodies.append([sphere(center,rad,material='spheres') for center,rad in sp])
## create walls around the packing
walls=aabbWalls(thickness=1e-10,material='frictionless')
wallIds=O.bodies.append(walls)
# wall of each side
triax=TriaxialCompressionEngine(
	wall_bottom_id=wallIds[2],
	wall_top_id=wallIds[2],
	wall_left_id=wallIds[0],
	wall_right_id=wallIds[2],
	wall_back_id=wallIds[2],
	wall_front_id=wallIds[2],
	internalCompaction=False,

	sigmaIsoCompaction=-50000,
	sigmaLateralConfinement=-50000,
	max_vel=10,
	strainRate=0.01,
	label="triax"
)

O.engines=[
	ForceResetter(),
	InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Box_Aabb()]),
	InteractionLoop(
		[Ig2_Sphere_Sphere_ScGeom(),Ig2_Box_Sphere_ScGeom()],
		[Ip2_FrictMat_FrictMat_FrictPhys()],
		[Law2_ScGeom_FrictPhys_CundallStrack()]
	),
	GlobalStiffnessTimeStepper(active=1,timeStepUpdateInterval=100,timestepSafetyCoefficient=0.8),
	triax,

	NewtonIntegrator(damping=.4)
]

from yade import plot
O.engines=O.engines[0:5]+[PyRunner(iterPeriod=20,command='history()',label='recorder')]+O.engines[5:7]
def history():
	plot.addData(e11=-triax.strain[0], e22=-triax.strain[1], e33=-triax.strain[2],
		s11=-triax.stress(0)[0],
		s22=-triax.stress(2)[1],
		s33=-triax.stress(4)[2],
		i=O.iter)

plot.plots={'i': ('e11','e22','e33',None,'s11','s22','s33')}

O.saveTmp()
plot.plot()

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