Source code for pyNastran.op2.tables.oes_stressStrain.real.oes_bush1d

from itertools import count
from typing import List

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 get_headers(self) -> List[str]: headers = ['element_force', 'axial_displacement', 'axial_velocity', 'axial_stress', 'axial_strain', 'plastic_strain'] return headers
[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=dtype) self.element = zeros(self.ntotal, dtype='int32') 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='float32')
[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 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 ['<%s>\n' % self.__class__.__name__, 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 == 4: 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