96 lines
3.8 KiB
Python
Executable File
96 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python2.7
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# -*- coding: UTF-8 no BOM -*-
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import os,sys
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import numpy as np
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from optparse import OptionParser
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import damask
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scriptName = os.path.splitext(os.path.basename(__file__))[0]
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scriptID = ' '.join([scriptName,damask.version])
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def normalize(vec):
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return vec/np.sqrt(np.inner(vec,vec))
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def E_hkl(stiffness,vec): # stiffness = (c11,c12,c44)
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v = normalize(vec)
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S11 = (stiffness[0]+stiffness[1])/(stiffness[0]*stiffness[0]+stiffness[0]*stiffness[1]-2.0*stiffness[1]*stiffness[1])
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S12 = ( -stiffness[1])/(stiffness[0]*stiffness[0]+stiffness[0]*stiffness[1]-2.0*stiffness[1]*stiffness[1])
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S44 = 1.0/stiffness[2]
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invE = S11-(S11-S12-0.5*S44)* (1.0 - \
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(v[0]**4+v[1]**4+v[2]**4) \
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/#------------------------------------
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np.inner(v,v)**2 \
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)
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return 1.0/invE
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# --------------------------------------------------------------------
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# MAIN
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# --------------------------------------------------------------------
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parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
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Add column(s) containing directional stiffness based on given cubic stiffness values C11, C12, and C44 in consecutive columns.
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""", version = scriptID)
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parser.add_option('-c','--stiffness',
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dest = 'stiffness',
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action = 'extend', metavar = '<string LIST>',
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help = 'heading of column containing C11 (followed by C12, C44) field values')
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parser.add_option('-d','--direction','--hkl',
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dest = 'hkl',
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type = 'int', nargs = 3, metavar = 'int int int',
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help = 'direction of elastic modulus [%default]')
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parser.set_defaults(hkl = (1,1,1),
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)
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(options,filenames) = parser.parse_args()
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if options.stiffness is None:
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parser.error('no data column specified...')
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# --- loop over input files -------------------------------------------------------------------------
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if filenames == []: filenames = [None]
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for name in filenames:
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try:
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table = damask.ASCIItable(name = name, buffered = False)
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except:
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continue
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damask.util.report(scriptName,name)
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# ------------------------------------------ read header ------------------------------------------
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table.head_read()
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# ------------------------------------------ sanity checks ----------------------------------------
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remarks = []
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columns = []
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for i,column in enumerate(table.label_index(options.stiffness)):
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if column < 0: remarks.append('column {} not found.'.format(options.stiffness[i]))
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else:
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columns.append(column)
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table.labels_append(['E{}{}{}({arg2})'.format(*options.hkl,arg2=options.stiffness[i])]) # extend ASCII header with new labels
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if remarks != []: damask.util.croak(remarks)
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# ------------------------------------------ assemble header --------------------------------------
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table.info_append(scriptID + '\t' + ' '.join(sys.argv[1:]))
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table.head_write()
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# ------------------------------------------ process data ------------------------------------------
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outputAlive = True
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while outputAlive and table.data_read(): # read next data line of ASCII table
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for column in columns:
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table.data_append(E_hkl(map(float,table.data[column:column+3]),options.hkl))
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outputAlive = table.data_write() # output processed line
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# ------------------------------------------ output finalization -----------------------------------
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table.close() # close ASCII tables |