from itertools import count
import numpy as np
from numpy import zeros, searchsorted, ravel
from pyNastran.utils.numpy_utils import integer_types
from pyNastran.op2.result_objects.op2_objects import get_times_dtype
from pyNastran.op2.tables.oes_stressStrain.real.oes_objects import OES_Object
from pyNastran.f06.f06_formatting import write_floats_13e, _eigenvalue_header
[docs]
class RealBush1DStressArray(OES_Object):
def __init__(self, data_code, is_sort1, isubcase, dt):
OES_Object.__init__(self, data_code, isubcase, apply_data_code=True)
#self.code = [self.format_code, self.sort_code, self.s_code]
#self.ntimes = 0 # or frequency/mode
#self.ntotal = 0
self.ielement = 0
self.nelements = 0 # result specific
@property
def is_stress(self) -> bool:
return True
@property
def is_real(self) -> bool:
return True
@property
def is_complex(self) -> bool:
return False
@property
def nnodes_per_elements(self) -> int:
if self.element_type == 40:
nnodes_per_element = 1
else:
raise NotImplementedError(self.element_type)
return nnodes_per_element
def _reset_indices(self) -> None:
self.itotal = 0
self.ielement = 0
def _get_msgs(self):
words = [
#' ELEMENT-ID = 104'
' S T R E S S E S ( F O R C E S ) I N B U S H 1 D E L E M E N T S ( C B U S H 1 D )\n',
' \n',
' AXIAL AXIAL AXIAL AXIAL AXIAL PLASTIC\n',
' TIME FORCE DISPLACEMENT VELOCITY STRESS STRAIN STRAIN STATUS\n',
#' 2.000000E-02 1.960396E+01 1.960396E-04 1.940792E-02 1.960396E+01 1.960396E-04 0.000000E+00 \n',
]
return words
# raise NotImplementedError('%s needs to implement _get_msgs' % self.__class__.__name__)
[docs]
def build(self):
"""sizes the vectorized attributes of the RealBush1DStressArray"""
#print("self.ielement =", self.ielement)
#print('ntimes=%s nelements=%s ntotal=%s' % (self.ntimes, self.nelements, self.ntotal))
assert self.ntimes > 0, 'ntimes=%s' % self.ntimes
assert self.nelements > 0, 'nelements=%s' % self.nelements
assert self.ntotal > 0, 'ntotal=%s' % self.ntotal
self.itime = 0
self.ielement = 0
self.itotal = 0
#self.ntimes = 0
#self.nelements = 0
#print("***name=%s type=%s nnodes_per_element=%s ntimes=%s nelements=%s ntotal=%s" % (
#self.element_name, self.element_type, nnodes_per_element, self.ntimes, self.nelements,
#self.ntotal))
dtype, idtype, fdtype = get_times_dtype(self.nonlinear_factor, self.size, self.analysis_fmt)
self._times = zeros(self.ntimes, dtype=self.analysis_fmt)
self.element = zeros(self.ntotal, dtype=idtype)
self.is_failed = zeros((self.ntimes, self.ntotal, 1), dtype='int32')
# [element_force, axial_displacement, axial_velocity, axial_stress, axial_strain, plastic_strain, is_failed]
self.data = zeros((self.ntimes, self.ntotal, 6), dtype=fdtype)
[docs]
def build_dataframe(self):
"""creates a pandas dataframe"""
import pandas as pd
headers = self.get_headers()
if self.nonlinear_factor not in (None, np.nan):
# Time 0.02 0.04 0.06
# ElementID Item
#104 element_force 38.633198 113.462921 220.903046
# axial_displacement 0.000194 0.000761 0.001673
# axial_velocity 0.019220 0.037323 0.053638
# axial_stress NaN NaN NaN
# axial_strain NaN NaN NaN
# plastic_strain 0.000000 0.000000 0.000000
column_names, column_values = self._build_dataframe_transient_header()
data_frame = self._build_pandas_transient_elements(
column_values, column_names,
headers, self.element, self.data)
else:
#Static element_force axial_displacement axial_velocity axial_stress axial_strain plastic_strain
#ElementID
#17801 1.0 0.1 0.0 0.0 0.0 0.0
#17807 1.0 0.1 0.0 0.0 0.0 0.0
data_frame = pd.DataFrame(self.data[0], columns=headers, index=self.element)
data_frame.index.name = 'ElementID'
data_frame.columns.names = ['Static']
self.data_frame = data_frame
def __eq__(self, table): # pragma: no cover
assert self.is_sort1 == table.is_sort1
self._eq_header(table)
i = 0
if not np.array_equal(self.data, table.data):
msg = 'table_name=%r class_name=%s\n' % (self.table_name, self.__class__.__name__)
msg += '%s\n' % str(self.code_information())
ntimes = self.data.shape[0]
if self.is_sort1:
for itime in range(ntimes):
for ieid, eid, in enumerate(self.element):
t1 = self.data[itime, ieid, :]
t2 = table.data[itime, ieid, :]
#i_not_nan = np.isnp.where(t1 != np.nan)[0]
i_not_nan = np.isfinite(t1)
(axial_stress1, equiv_stress1, total_strain1, eff_plastic_creep_strain1, eff_creep_strain1, linear_torsional_stress1) = t1
(axial_stress2, equiv_stress2, total_strain2, eff_plastic_creep_strain2, eff_creep_strain2, linear_torsional_stress2) = t2
if not np.allclose(t1[i_not_nan], t2[i_not_nan]):
#if not np.array_equal(t1, t2):
msg += '%s\n (%s, %s, %s, %s, %s, %s)\n (%s, %s, %s, %s, %s, %s)\n' % (
eid,
axial_stress1, equiv_stress1, total_strain1, eff_plastic_creep_strain1, eff_creep_strain1, linear_torsional_stress1,
axial_stress2, equiv_stress2, total_strain2, eff_plastic_creep_strain2, eff_creep_strain2, linear_torsional_stress2)
i += 1
if i > 10:
print(msg)
raise ValueError(msg)
else:
raise NotImplementedError(self.is_sort2)
if i > 0:
print(msg)
raise ValueError(msg)
return True
def add_sort1(self, dt, eid, element_force, axial_displacement, axial_velocity,
axial_stress, axial_strain, plastic_strain, is_failed):
"""unvectorized method for adding SORT1 transient data"""
assert self.sort_method == 1, self
assert isinstance(eid, integer_types) and eid > 0, 'dt=%s eid=%s' % (dt, eid)
# pyNastran_examples\move_tpl\ar29scb1.op2
#print('dt=%s eid=%s force=%s' % (dt, eid, element_force))
#print('element.shape=%s' % self.element.shape)
#print('data.shape=%s' % str(self.data.shape))
#print('times.shape=%s' % self._times.shape)
#print('itime=%s ielement=%s itotal=%s' % (self.itime, self.itotal, self.ielement))
self._times[self.itime] = dt
self.element[self.itotal] = eid
self.is_failed[self.itime, self.itotal, 0] = is_failed
self.data[self.itime, self.itotal, :] = [
element_force, axial_displacement, axial_velocity,
axial_stress, axial_strain, plastic_strain]
self.itotal += 1
self.ielement += 1
[docs]
def get_stats(self, short: bool=False) -> list[str]:
if not self.is_built:
return [f'<{self.__class__.__name__}>; table_name={self.table_name!r}\n',
f' ntimes: {self.ntimes:d}\n',
f' ntotal: {self.ntotal:d}\n',
]
nelements = self.ntotal
ntimes = self.ntimes
#ntotal = self.ntotal
nelements = self.ntotal
msg = []
if self.nonlinear_factor not in (None, np.nan): # transient
msg.append(' type=%s ntimes=%i nelements=%i\n'
% (self.__class__.__name__, ntimes, nelements))
ntimes_word = 'ntimes'
else:
msg.append(' type=%s nelements=%i\n'
% (self.__class__.__name__, nelements))
ntimes_word = '1'
headers = self.get_headers()
n = len(headers)
assert n == self.data.shape[2], 'nheaders=%s shape=%s' % (n, str(self.data.shape))
msg.append(' data: [%s, ntotal, %i] where %i=[%s]\n' % (ntimes_word, n, n, str(', '.join(headers))))
msg.append(f' element.shape = {self.element.shape}\n')
msg.append(f' is_failed.shape = {self.is_failed.shape}\n')
msg.append(f' data.shape = {self.data.shape}\n')
msg.append(f' element type: {self.element_name}-{self.element_type}\n')
msg += self.get_data_code()
return msg
[docs]
def get_element_index(self, eids):
# elements are always sorted; nodes are not
itot = searchsorted(eids, self.element) #[0]
return itot
[docs]
def eid_to_element_node_index(self, eids):
ind = ravel([searchsorted(self.element == eid) for eid in eids])
return ind
[docs]
def write_f06(self, f06_file, header=None, page_stamp='PAGE %s',
page_num: int=1, is_mag_phase: bool=False, is_sort1: bool=True):
if header is None:
header = []
msg = self._get_msgs()
ntimes = self.data.shape[0]
eids = self.element
for itime in range(ntimes):
dt = self._times[itime]
header = _eigenvalue_header(self, header, itime, ntimes, dt)
f06_file.write(''.join(header + msg))
#[element_force, axial_displacement, axial_velocity, axial_stress, axial_strain, plastic_strain, is_failed]
element_force = self.data[itime, :, 0]
axial_displacement = self.data[itime, :, 1]
axial_velocity = self.data[itime, :, 2]
axial_stress = self.data[itime, :, 3]
axial_strain = self.data[itime, :, 4]
plastic_strain = self.data[itime, :, 5]
is_failed = self.is_failed[itime, :, 0]
for (i, eid, element_forcei, axial_displacementi, axial_velocityi, axial_stressi,
axial_straini, plastic_straini, is_failedi) in zip(
count(), eids, element_force, axial_displacement, axial_velocity,
axial_stress, axial_strain, plastic_strain, is_failed):
vals = [element_forcei, axial_displacementi, axial_velocityi, axial_stressi,
axial_straini, plastic_straini, is_failedi]
vals2 = write_floats_13e(vals)
[element_forcei, axial_displacementi, axial_velocityi, axial_stressi,
axial_straini, plastic_straini, is_failedi] = vals2
f06_file.write(
'0%8i %-13s %-13s %-13s %-13s %-13s %-13s %s\n'
% (eid, element_forcei, axial_displacementi, axial_velocityi, axial_stressi,
axial_straini, plastic_straini, is_failedi))
f06_file.write(page_stamp % page_num)
page_num += 1
if self.nonlinear_factor in (None, np.nan):
page_num -= 1
return page_num
[docs]
def write_op2(self, op2_file, op2_ascii, itable, new_result, date,
is_mag_phase=False, endian='>'):
"""writes an OP2"""
import inspect
from struct import Struct, pack
frame = inspect.currentframe()
call_frame = inspect.getouterframes(frame, 2)
op2_ascii.write(f'{self.__class__.__name__}.write_op2: {call_frame[1][3]}\n')
if itable == -1:
self._write_table_header(op2_file, op2_ascii, date)
itable = -3
#if isinstance(self.nonlinear_factor, float):
#op2_format = '%sif' % (7 * self.ntimes)
#raise NotImplementedError()
#else:
#op2_format = 'i21f'
#s = Struct(op2_format)
eids = self.element
# table 4 info
#ntimes = self.data.shape[0]
#nnodes = self.data.shape[1]
nelements = self.data.shape[1]
# 21 = 1 node, 3 principal, 6 components, 9 vectors, 2 p/ovm
#ntotal = ((nnodes * 21) + 1) + (nelements * 4)
ntotali = self.num_wide
ntotal = ntotali * nelements
#print('shape = %s' % str(self.data.shape))
#assert self.ntimes == 1, self.ntimes
#device_code = self.device_code
op2_ascii.write(f' ntimes = {self.ntimes}\n')
eids_device = self.element * 10 + self.device_code
#fmt = '%2i %6f'
#print('ntotal=%s' % (ntotal))
#assert ntotal == 193, ntotal
if not self.is_sort1:
raise NotImplementedError('SORT2')
struct1 = Struct(endian + b'i6f')
fdtype = self.data.dtype
if self.size == fdtype.itemsize:
pass
else:
print(f'downcasting {self.class_name}...')
#cen_word_bytes = b'CEN/ '
idtype = np.int32(1)
fdtype = np.float32(1.0)
#self.element = zeros(self.ntotal, dtype='int32')
#self.is_failed = zeros((self.ntimes, self.ntotal, 1), dtype='int32')
# [eid,
# element_force, axial_displacement, axial_velocity, axial_stress, axial_strain, plastic_strain,
# is_failed]
data_out = np.empty((nelements, 8), dtype=fdtype)
data_out[:, 0] = eids_device.view(fdtype)
op2_ascii.write(f'nelements={nelements:d}\n')
for itime in range(self.ntimes):
#print('3, %s' % itable)
self._write_table_3(op2_file, op2_ascii, new_result, itable, itime)
# record 4
#print('stress itable = %s' % itable)
itable -= 1
#print('4, %s' % itable)
header = [4, itable, 4,
4, 1, 4,
4, 0, 4,
4, ntotal, 4,
4 * ntotal]
op2_file.write(pack('%ii' % len(header), *header))
op2_ascii.write('r4 [4, 0, 4]\n')
op2_ascii.write(f'r4 [4, {itable:d}, 4]\n')
op2_ascii.write(f'r4 [4, {4 * ntotal:d}, 4]\n')
# [eid,
# element_force, axial_displacement, axial_velocity, axial_stress, axial_strain, plastic_strain,
# is_failed]
data_out[:, 1:-1] = self.data[itime, :, :]
#print(data_out[:, -1].shape, self.is_failed[itime, :, 0].shape)
data_out[:, -1] = self.is_failed[itime, :, 0] # .reshape(nelements, 1).view(fdtype)
assert data_out.size == ntotal, f'data_out.shape={data_out.shape} size={data_out.size}; ntotal={ntotal}'
op2_file.write(data_out)
itable -= 1
header = [4 * ntotal,]
op2_file.write(pack('i', *header))
op2_ascii.write('footer = %s\n' % header)
new_result = False
return itable