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convert2sc.py
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# -*- coding: utf-8 -*-
from abaqus import *
from math import *
import codecs
from utilities import *
import os.path
def convert2sc(abq_input, new_filename, macro_model, specific_model,
analysis, elem_flag, trans_flag, temp_flag,
bk, sk, cos, w):
if new_filename == '':
out_file_name = abq_input[:-4] + r'.sc'
else:
dir = os.path.dirname(abq_input)
new_filename = new_filename + '.sc'
out_file_name = os.path.join(dir, new_filename)
nsg = 1
nslave = 0
n_coord = []
e_connt = {}
e_list = []
abq_elset = {}
layer_type = {}
distribution = {}
distr_list = {}
orientation = {}
section = {}
material = {}
used_section = []
material_type = {'ISOTROPIC': 0, 'ENGINEERING CONSTANTS': 1,
'ORTHOTROPIC': 2, 'ANISOTROPIC': 2}
keywords = ['*Node', '*Element', '*Elset',
'*Distribution', '*Orientation', '*Solid Section', '*Shell Section',
'*Material', '*Density', '*Elastic']
milestone('Reading Abaqus inputs...')
with open(abq_input, 'r') as fin:
key = ''
name = ''
parameter = ''
for line in fin:
line = line.strip()
if line.startswith('**'):
continue
else:
line = line.split(',')
first = line[0].strip()
# Switch key
if first == '':
continue
elif first.startswith('*') and not first in keywords:
key = ''
continue
elif first == '*Node':
# milestone(first)
key = 'node'
continue
elif first == '*Element':
# milestone(first)
key = 'element'
continue
elif first == '*Elset':
# milestone(first)
key = 'elset'
for i, temp in enumerate(line):
if 'elset' in temp:
ei = i
if 'generate' in temp:
parameter = 'generate'
else:
parameter = 'list'
elset = line[ei].split('=')
name = elset[-1] # Abaqus element set name
ma = name.split('/')
ma = ma[0]
# print ma
# print abq_elset
if ma not in abq_elset.keys():
abq_elset[ma] = []
# else:
# flag = 1
if ma not in layer_type.keys():
k = len(layer_type.keys()) + 1
j = ma.rfind('_')
m = ma[:j]
a = ma[j+1:]
if 'p' in a:
a = a[1:]
elif 'n' in a:
a = a.replace('n', '-')
a = a.replace('d', '.')
# print a
try:
a = float(a)
layer_type[ma] = [k, m, a] # {'name': [id, 'material', angle], ...}
except ValueError:
continue
continue
elif first == '*Distribution':
# milestone(first)
distr_flag = 'exist'
distr_eab = {}
for temp in line:
if 'name' in temp:
distr_name = temp.split('=')[-1].strip()
if not distr_name in distribution.keys():
distribution[distr_name] = [distr_eab]
distr_flag = 'new'
if 'Table' in temp and distr_flag == 'new':
distr_table = temp.split('=')[-1].strip()
distribution[distr_name].insert(0, distr_table)
key = 'distribution'
continue
elif first == '*Orientation':
orien_flag = 'exist'
row = 1
for temp in line:
if 'name' in temp:
orien_name = temp.split('=')[-1].strip()
if not orien_name in orientation.keys():
orientation[orien_name] = []
orien_flag = 'new'
key = 'orientation'
continue
elif first == '*Solid Section' or first == '*Shell Section':
# milestone(first)
key = ''
for temp in line:
if 'elset' in temp:
elset_name = temp.split('=')[-1].strip()
ma = elset_name.split('/')[0]
used_section.append(ma)
section[elset_name] = {}
elif 'orientation' in temp:
orien_name = temp.split('=')[-1].strip()
section[elset_name]['orientation'] = orien_name
elif 'material' in temp:
mtr_name = temp.split('=')[-1].strip()
section[elset_name]['material'] = mtr_name
# print used_section
elif first == '*Material':
# milestone(first)
key = ''
for i, temp in enumerate(line):
if 'name' in temp:
mi = i
mn = line[mi].split('=')
mn = mn[-1].strip()
if mn not in material.keys():
mid = len(material.keys()) + 1
material[mn] = [mid]
continue
elif first == '*Density':
# milestone(first)
key = 'density'
continue
elif first == '*Elastic':
# milestone(first)
if len(material[mn]) < 2: # no density
material[mn].append(1.0) # add default density
key = 'elastic'
tp = 'ISOTROPIC'
for temp in line:
if 'type' in temp:
tp = temp.split('=')[-1].strip()
material[mn].append(material_type[tp])
# material[mn].append(density)
continue
# Save data
if key == '':
continue
elif key == 'node':
nid = int(first)
if len(line) == 3:
x2 = float(line[1].strip())
x3 = float(line[2].strip())
try:
if nsg != 2:
if x2 != x2_old and x3 != x3_old:
nsg = 2
i2, i3 = 1, 2
else:
nsg = 1
if x2 != x2_old:
i3 = 1
elif x3 != x3_old:
i3 = 2
except NameError:
pass
n_coord.append([nid, x2, x3])
x2_old, x3_old = x2, x3
elif len(line) == 4:
x1 = float(line[1].strip())
x2 = float(line[2].strip())
x3 = float(line[3].strip())
try:
if nsg != 3:
if x1 != x1_old and x2 != x2_old and x3 != x3_old:
nsg = 3
i1, i2, i3 = 1, 2, 3
if nsg != 2:
if x1 != x1_old and x2 != x2_old:
nsg = 2
i2, i3 = 1, 2
elif x2 != x2_old and x3 != x3_old:
nsg = 2
i2, i3 = 2, 3
elif x3 != x3_old and x1 != x1_old:
nsg = 2
i2, i3 = 3, 1
else:
nsg = 1
if x1 != x1_old:
i3 = 1
elif x2 != x2_old:
i3 = 2
elif x3 != x3_old:
i3 = 3
except NameError:
pass
n_coord.append([nid, x1, x2, x3]) # [[node_id, 0.0, x_2, x_3], ...]
x1_old, x2_old, x3_old = x1, x2, x3
elif key == 'element':
n = len(line) - 1 # number of nodes
if n == 3 or n == 6:
line.insert(4, '0')
m = len(line) - 1
zeros = [0] * (9 - m)
eid = line[0].strip()
e_connt[eid] = [int(v.strip()) for v in line[1:]] # {'eid': [n1, n2, ...], ...}
e_connt[eid] += zeros
e_list.append(int(eid))
elif key == 'elset':
if parameter == 'list':
for e in line:
if e.strip() == '':
continue
abq_elset[ma].append(int(e.strip()))
elif parameter == 'generate':
start = int(line[0].strip())
stop = int(line[1].strip()) + 1
step = int(line[2].strip())
for e in range(start, stop, step):
abq_elset[ma].append(e) # Abaqus: {'set_name': [e1, e2, ...], ...}
elif key == 'distribution':
if distr_flag == 'new':
eid = str(line[0].strip())
# print eid
if int(eid) in e_list:
e_list.remove(int(eid))
if eid not in distr_list.keys():
if nsg == 2:
distr_list[eid] = [1.0, 0.0, 0.0, # a_1, a_2, a_3
float(line[1]), float(line[2]), float(line[3]), # b_1, b_2, b_3
0.0, 0.0, 0.0] # c_1, c_2, c_3
# {'element_id': [a_1, ..., c_3], }
elif nsg == 3:
distr_list[eid] = [float(line[1]), float(line[2]), float(line[3]),
float(line[4]), float(line[5]), float(line[6]),
0.0, 0.0, 0.0]
distr_eab = distribution[distr_name][-1]
if nsg == 2:
distr_eab[eid] = [1.0, 0.0, 0.0, # a_1, a_2, a_3
float(line[1]), float(line[2]), float(line[3]), # b_1, b_2, b_3
0.0, 0.0, 0.0] # c_1, c_2, c_3
elif nsg == 3:
distr_eab[eid] = [float(line[1]), float(line[2]), float(line[3]), # a_1, a_2, a_3
float(line[4]), float(line[5]), float(line[6]), # b_1, b_2, b_3
0.0, 0.0, 0.0] # c_1, c_2, c_3
elif key == 'orientation':
if orien_flag == 'new':
if row == 1:
try:
ab = []
for i in line:
ab.append(float(line[0].strip()))
orientation[orien_name].append('ab')
orientation[orien_name].append(ab)
except ValueError:
orientation[orien_name].append('distr')
orientation[orien_name].append(line[0])
row += 1
elif row == 2:
orientation[orien_name].append(int(line[0]))
orientation[orien_name].append(float(line[1]))
elif key == 'density':
d = float(line[0])
# print material
material[mn].append(d)
elif key == 'elastic':
for p in line:
if p.strip() != '':
material[mn].append(float(p.strip()))
# print material[mn]
# print distribution
# print orientation
# print section
# print 'Finish reading Abaqus inputs.'
nlayer = len(layer_type)
nmate = len(material)
for k in abq_elset.keys():
if k not in used_section:
del abq_elset[k]
eid_maid = {}
# print abq_elset
for k, v in abq_elset.items():
maid = layer_type[k][0]
for eid in v:
eid_maid[str(eid)] = maid
# print eid_maid
for k, v in e_connt.items():
maid = eid_maid[k]
v.insert(0, maid)
# print 'Writing SwiftComp inputs...'
milestone('Writing SwiftComp inputs...')
with codecs.open(out_file_name, encoding = 'utf-8', mode = 'w') as fout:
nnode = len(n_coord)
nelem = len(e_connt)
if macro_model == 1:
writeFormat(fout, 'd', [specific_model])
fout.write('\n')
writeFormat(fout, 'EEE', bk)
fout.write('\n')
writeFormat(fout, 'EE', cos)
fout.write('\n')
elif macro_model == 2:
writeFormat(fout, 'd', [specific_model])
fout.write('\n')
writeFormat(fout, 'EE', sk)
fout.write('\n')
writeFormat(fout, 'd'*4, [analysis, elem_flag, trans_flag, temp_flag])
fout.write('\n')
writeFormat(fout, 'd'*6, [nsg, nnode, nelem, nmate, nslave, nlayer])
fout.write('\n')
for n in n_coord:
if nsg == 1:
writeFormat(fout, 'dE', [n[0], n[i3]])
elif nsg == 2:
writeFormat(fout, 'dEE', [n[0], n[i2], n[i3]])
elif nsg == 3:
writeFormat(fout, 'dEEE', [n[0], n[i1], n[i2], n[i3]])
fout.write('\n')
for k, v in e_connt.items():
e = [int(k),] + v
writeFormat(fout, 'd'*11, e)
fout.write('\n')
if trans_flag == 1:
for e in e_list:
a = [1.0, 0.0, 0.0]
b = [0.0, 1.0, 0.0]
c = [0.0, 0.0, 0.0]
writeFormat(fout, 'd'+'E'*9, [e]+a+b+c)
for e, abc in distr_list.items():
writeFormat(fout, 'd'+'E'*9, [int(e)]+abc)
fout.write('\n')
if nlayer != 0:
for v in layer_type.values():
mn = v[1]
mid = material[mn][0]
v[1] = mid
writeFormat(fout, 'ddE', v)
fout.write('\n')
if nmate != 0:
for i in material.values():
writeFormat(fout, 'ddd', [i[0], i[2], 1])
writeFormat(fout, 'EE', [20.0, i[1]])
if i[2] == 0: # isotropic
writeFormat(fout, 'EE', i[3:5])
elif i[2] == 1: # engineering constants
writeFormat(fout, 'EEE', i[3:6])
writeFormat(fout, 'EEE', i[9:12])
writeFormat(fout, 'EEE', i[6:9])
elif i[2] == 2:
if len(i) == 12: # orthotropic
writeFormat(fout, 'E'*6, [i[3], i[4], i[6], 0, 0, 0])
writeFormat(fout, 'E'*5, [ i[5], i[7], 0, 0, 0])
writeFormat(fout, 'E'*4, [ i[8], 0, 0, 0])
writeFormat(fout, 'E'*3, [ i[11], 0, 0])
writeFormat(fout, 'E'*2, [ i[10], 0])
writeFormat(fout, 'E'*1, [ i[9]])
elif len(i) == 24: # anisotropic
writeFormat(fout, 'E'*6, [i[3], i[4], i[6], i[18], i[13], i[9]])
writeFormat(fout, 'E'*5, [ i[5], i[7], i[19], i[14], i[10]])
writeFormat(fout, 'E'*4, [ i[8], i[20], i[15], i[11]])
writeFormat(fout, 'E'*3, [ i[23], i[22], i[21]])
writeFormat(fout, 'E'*2, [ i[17], i[16]])
writeFormat(fout, 'E'*1, [ i[12]])
fout.write('\n')
fout.write('\n')
writeFormat(fout, 'E', [w])
fout.write('\n')
sc_input = os.path.basename(out_file_name)
macro_model_dim = str(macro_model) + 'D'
return [sc_input, macro_model_dim]