DAMASK_EICMD/processing/misc/calculateAnisotropy.py

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# -*- coding: UTF-8 no BOM -*-
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import threading,os,string
import numpy as np
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from optparse import OptionParser
from shutil import copy2
from re import split
import damask
scriptName = os.path.splitext(os.path.basename(__file__))[0]
scriptID = ' '.join([scriptName,damask.version])
def list_split(option, opt, value, parser):
setattr(parser.values, option.dest, value.split(','))
#---------------------------------------------------------------------------------------------------
class myThread (threading.Thread):
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"""Runner"""
def __init__(self, threadID):
threading.Thread.__init__(self)
self.threadID = threadID
def run(self):
s.acquire()
conv=isFinished()
s.release()
while conv:
doSim(4.,self.name)
s.acquire()
conv=isFinished()
s.release()
def doSim(delay,thread):
global dirCurrent
s.acquire()
delta_angle = offsetPhi()
if len(str(delta_angle)) > 5:
file_angle = str(delta_angle)[:5]
else:
file_angle = str(delta_angle)
dire = dirCurrent+'/'+file_angle
if not os.path.isdir(dire):
os.mkdir(dire,0755)
for file in [options.geometry+'.geom',options.load+'.load','numerics.config']:
copy2(dirCurrent+'/'+file, dire)
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newMaterialConfig(dirCurrent,delta_angle)
os.chdir(dire)
if not os.path.isfile('%s_%s.spectralOut'%(options.geometry,options.load)):
print('starting uniaxial tension in direction of angle %s from %s'%(file_angle,thread))
s.release()
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damask.util.execute('DAMASK_spectral -g %s -l %s'%(options.geometry,options.load))
else: s.release()
s.acquire()
if not os.path.isfile('./%s/%s_%s.txt'%('Rvalues',options.geometry,options.load)):
print('starting post processing for angle %s from %s'%(file_angle,thread))
s.release()
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damask.util.execute('postResults --cr f,p -d %s %s_%s.spectralOut'%('Rvalues',options.geometry,options.load))
damask.util.execute('addCauchy ./%s/%s_%s.txt'%('Rvalues',options.geometry,options.load))
damask.util.execute('addStrainTensors -l -v ./%s/%s_%s.txt'%('Rvalues',options.geometry,options.load))
print('post processing for angle %s from %s is finished'%(file_angle,thread))
else:
s.release()
os.chdir(dirCurrent)
def isFinished():
global N_simulations
if N_simulations < options.number:
return True
else:
return False
def offsetPhi():
global N_simulations #, N_tensile
N_simulations+=1
return np.linspace(0,90,options.number)[N_simulations-1]
def newMaterialConfig(dire,angle):
filename = '/material.config'
if len(str(angle)) > 5:
file_angle = str(angle)[:5]
else:
file_angle = str(angle)
f = open(dire+'/'+file_angle+filename,'w')
data = open(dire+filename, 'r').readlines()
for line in data:
if '(gauss)' in line:
linesplit = split(r'[;,\s,\t]\s*',line)
index = linesplit.index('phi1')
phi = float(linesplit[index+1]) - angle
if phi > 360. :
phi = phi-360.0
elif phi < 0.0:
phi = phi+360.0
index2 = line.index(linesplit[index+1])
line2 = line[:index2]+str(phi)+line[index2+len(str(float(linesplit[index+1]))):]
else:
line2 = line
f.write(line2)
f.close()
# --------------------------------------------------------------------
# MAIN
# --------------------------------------------------------------------
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
Calculate the deformation anisotropic coefficients (r values) and
strength anisotropic coefficients (normalized yield stress)
""", version=string.replace(scriptID,'\n','\\n')
)
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parser.add_option('-l','--load' ,
dest='load', type='string',
help='name of the load file [%default]', metavar='string')
parser.add_option('-g','--geometry',
dest='geometry', type='string',
help='name of the geometry file [%default]', metavar='string')
parser.add_option('-s', '--strain',
dest='strain', type='string', action='callback', callback=list_split,
help='threshold strains, using comma to seperate multiple strains [%default]', metavar='string')
parser.add_option('-t','--threads',
dest='threads', type='int',
help='number of parallel executions [%default]', metavar='int')
parser.add_option('-n','--number',
dest='number', type='int',
help='Number of uni-axial tensile tests [%default]', metavar='int')
parser.set_defaults(geometry = '20grains16x16x16')
parser.set_defaults(load = 'tensionX')
parser.set_defaults(threads = 1)
parser.set_defaults(number = 7)
parser.set_defaults(strain = ('0.0025','0.025'))
options = parser.parse_args()[0]
if not os.path.isfile(options.geometry+'.geom'):
parser.error('geometry file %s.geom not found'%options.geometry)
if not os.path.isfile('material.config'):
parser.error('material.config file not found')
thresStrain = [float(i) for i in options.strain]
if not os.path.isfile(options.load+'.load'):
maxstrain = max(thresStrain)
f11 = str(1.2*maxstrain + 1.0)
if maxstrain < 0.05:
maxincs = '60'; maxtime = '30'
else:
maxincs = str(int(maxstrain*3000)); maxtime = str(maxstrain*600)
f=open('tensionX.load','w')
uniaxial_load = 'f ' +f11+ ' 0 0 0 * 0 0 0 * ' + \
'stress ' +'* * * * 0 * * * 0 ' + \
'time '+ maxtime + ' incs ' + maxincs + ' freq 3'
f.write(uniaxial_load)
f.close()
N_simulations=0
s=threading.Semaphore(1)
threads=[]
dirCurrent = os.getcwd()
for i in range(options.threads):
threads.append(myThread(i))
threads[i].start()
for i in range(options.threads):
threads[i].join()
anisotropy = {}
for i,delta_angle in enumerate(np.linspace(0,90,options.number)):
if len(str(delta_angle)) > 5:
file_angle = str(delta_angle)[:5]
else:
file_angle = str(delta_angle)
refFile = dirCurrent+'/'+file_angle+'/Rvalues/%s_%s.txt'%(options.geometry,options.load)
if not os.path.isfile(refFile):
print('post processing file is not found for the angle %s'%file_angle)
else:
File = open(refFile)
table = damask.ASCIItable(File)
table.head_read()
if not set(['1_ln(V)','5_ln(V)','9_ln(V)','1_Cauchy']).issubset(set(table.labels)):
print 'data missing in direction %s'%str(delta_angle)
table.data_readArray(['%i_Cauchy'%(i+1) for i in xrange(9)]+['%i_ln(V)'%(i+1) for i in xrange(9)])
line, lines = 0, np.shape(table.data)[0]
aniso_thres = {}
for threshold in thresStrain:
while line < lines:
if abs(table.data[line,9])>= threshold: # 1_ln(V), e_xx
upper,lower = abs(table.data[line,9]),abs(table.data[line-1,9]) # values for linear interpolation
interplate = lambda x_d, x_u : x_d * (upper-threshold)/(upper-lower) + x_u * (threshold-lower)/(upper-lower)
e_yy = interplate (table.data[line-1,13], table.data[line,13])
e_zz = interplate (table.data[line-1,17], table.data[line,17])
s_xx = interplate (table.data[line-1,0 ], table.data[line,0 ])
aniso_thres[str(threshold)] = [e_yy/e_zz, s_xx]
break
else:
line+=1
anisotropy[file_angle] = aniso_thres
f = open('./anisotropy.txt','w')
f.write('4 header \n')
f.write('#the first row mean the threshold strain e_xx \n#the first column means loading directions \n')
f.write('#none means the data is unavailable\n# \n')
title = ['*R values (Lankford coefficients) \n', '# \n*Normalized yield stress \n']
for i in xrange(2):
f.write(title[i])
f.write(' '*10+len(thresStrain)*'%-12.4f'%tuple(thresStrain)+'\n')
for j,delta_angle in enumerate(np.linspace(0,90,options.number)):
if len(str(delta_angle)) > 5:
file_angle = str(delta_angle)[:5]
else:
file_angle = str(delta_angle)
if file_angle in anisotropy.keys():
aniso_dic_ang = anisotropy[file_angle]
aniso_list_ang_strain = []; writeformat = ''
for threshold in thresStrain:
if str(threshold) in aniso_dic_ang.keys():
if i == 1: # extract the normalized stress
aniso = aniso_dic_ang[str(threshold)][i]/anisotropy['0.0'][str(threshold)][i]
else: # extract r value
aniso = aniso_dic_ang[str(threshold)][i]
aniso_list_ang_strain.append(aniso)
writeformat = writeformat+'%-12.6f'
else:
aniso_list_ang_strain.append('none')
writeformat = writeformat+'%-12s'
f.write('%-10s'%file_angle + writeformat%(tuple(aniso_list_ang_strain))+'\n')
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f.close()