# Import Neccesary Abaqus Modules
from abaqusConstants import *
from odbAccess import *
import sys
import os
jobName=sys.argv[-2]
resFile=sys.argv[-1]
odbfilename=jobName+'.odb'
try:
	odb=openOdb(path=odbfilename)
	aNod=odb.rootAssembly.instances['AMESH-1'].nodeSets['E1'].nodes[0].coordinates[0]
	bNod=odb.rootAssembly.instances['AMESH-1'].nodeSets['E2'].nodes[0].coordinates[0]
	rlen=abs(aNod-bNod)
	check=0.
	try:
		for eachFrame in odb.steps["Step-5"].frames:
			tforce=0.
			for currentForce in eachFrame.fieldOutputs["CNORMF   ASSEMBLY_AOUTER/ASSEMBLY_SURF-1"].values:
				fx=currentForce.data[0]
				fy=currentForce.data[1]
				fz=currentForce.data[2]
				tforce=tforce+sqrt(fx*fx+fy*fy+fz*fz)
			aSet=odb.rootAssembly.instances['OUTER-1']
			uy=eachFrame.fieldOutputs["U"].getSubset(region=aSet).values[0].data[1]
			uz=eachFrame.fieldOutputs["U"].getSubset(region=aSet).values[0].data[2]
			rad=sqrt(uy*uy+uz*uz)
			if tforce>0.:
				check=check+1
			if check==2:
				f1=tforce
				r1=rad
			if check==5:
				f2=tforce
				r2=rad				
				break
		stiff=abs(f2-f1)/abs(r2-r1)
	except:
		stiff=0.
	stiff=stiff/rlen
except:
	stiff=0.	
outFile = open(resFile,"w")
objFn=1.-(0.15*abs(stiff))
outFile.write("%12.6f \n " % (objFn))
outFile.close()
odb.close()