oes_stressStrain Package

oes Module

Contains the OES class that is used to read stress/strain data

class pyNastran.op2.tables.oes_stressStrain.oes.OES

Bases: pyNastran.op2.op2_common.OP2Common

Defines the OES class that is used to read stress/strain data

OESRT_CQUAD4_95(data)

_create_oes_object2(nelements, result_name, result_vector_name, slot, slot_vector, obj, obj_vector)

Creates the self.obj parameter based on if this is vectorized or not. :param self: the object pointer :param nelements: the number of elements to preallocate for vectorization :type nelements: integer :param result_name: unused :type result_name: string :param result_vector_name: unused :type result_vector_name: string :param slot: the self dictionary that will be filled with a

non-vectorized result

Parameters:

• slot_vector – the self dictionary that will be filled with a vectorized result
• obj – a pointer to the non-vectorized class
• obj_vector – a pointer to the vectorized class

Returns auto_return:  

a flag indicating a return n should be called

Returns result_name:  

string of result_name or result_vector_name

Since that’s confusing, let’s say we have real CTETRA stress data. We’re going to fill self.solidStress with the class RealSolidStress. If it were vectorized, we’d fill self.ctetra_stress. with RealSolidStressArray. So we call:

if self._is_vectorized(RealSolidStressArray, self.ctetra_stress):

if result_vector_name not in self._saved_results:

return len(data)

else:

if result_name not in self._saved_results:

return len(data)

auto_return = self._create_oes_object2(self, nelements,

‘solidStress’, ‘ctetra_stress’, self.solidStress, self.ctetra_stress, RealSolidStress, RealSolidStressArray)

if auto_return:

return nelements * ntotal

_is_vectorized(obj_vector, slot_vector)

_parse_stress_code()

s_code = 0 -> stress_bits = [0,0,0,0,0] s_code = 1 -> stress_bits = [0,0,0,0,1] s_code = 2 -> stress_bits = [0,0,0,1,0] s_code = 3 -> stress_bits = [0,0,0,1,1] etc. s_code = 32 -> stress_bits = [1,1,1,1,1]

stress_bits[0] = 0 -> isMaxShear=True isVonMises=False stress_bits[0] = 1 -> isMaxShear=False isVonMises=True

stress_bits[1] = 0 -> isStress=True isStrain=False stress_bits[2] = 0 -> isFiberCurvature=True isFiberDistance=False stress_bits[3] = 0 -> duplicate of Bit[1] (stress/strain) stress_bits[4] = 0 -> material coordinate system flag

_read_oes1_3(data)

reads OES1 subtable 3

_read_oes1_4(data)

Reads the Stress/Strain Table 4

_read_oes1_4_sort1(data)

The actual function exec’d by the decorated function.

_read_oes_loads(data)

Reads OES self.thermal=0 stress/strain

_read_oes_thermal(data)

Reads OES self.thermal=1 tables

print_obj_name_on_crash(func)

Debugging function to print the object name and an needed parameters

oes_nonlinear Module

class pyNastran.op2.tables.oes_stressStrain.oes_nonlinear.HyperelasticQuad(data_code, is_sort1, isubcase, dt)

Bases: pyNastran.op2.tables.oes_stressStrain.real.oes_objects.StressObject

add_new_eid_sort1(dt, data)

add_new_transient(dt)

add_sort1(dt, eid, data)

delete_transient(dt)

get_stats()

get_transients()

write_f06(header, page_stamp, page_num=1, f=None, is_mag_phase=False)

class pyNastran.op2.tables.oes_stressStrain.oes_nonlinear.NonlinearQuad(data_code, is_sort1, isubcase, dt)

Bases: pyNastran.op2.tables.oes_stressStrain.real.oes_objects.StressObject

add_new_eid_sort1(eType, dt, data)

add_new_transient(dt)

add_sort1(dt, data)

delete_transient(dt)

get_stats()

get_transients()

write_f06(header, page_stamp, page_num=1, f=None, is_mag_phase=None)

class pyNastran.op2.tables.oes_stressStrain.oes_nonlinear.NonlinearRod(data_code, is_sort1, isubcase, dt)

Bases: pyNastran.op2.tables.oes_stressStrain.real.oes_objects.StressObject

add_new_transient(dt)

add_sort1(eType, dt, data)

delete_transient(dt)

get_stats()

get_transients()

write_f06(header, page_stamp, page_num=1, f=None, is_mag_phase=False)

ELEMENT-ID =     102
                         N O N L I N E A R   S T R E S S E S   I N   R O D   E L E M E N T S      ( C R O D )
  TIME          AXIAL STRESS         EQUIVALENT         TOTAL STRAIN       EFF. STRAIN          EFF. CREEP        LIN. TORSIONAL
                                       STRESS                             PLASTIC/NLELAST          STRAIN              STRESS
2.000E-02        1.941367E+01        1.941367E+01        1.941367E-04        0.0                 0.0                 0.0
3.000E-02        1.941367E+01        1.941367E+01        1.941367E-04        0.0                 0.0                 0.0

• complex Package
  • oes_bars Module
  • oes_bush Module
  • oes_bush1d Module
  • oes_plates Module
  • oes_rods Module
  • oes_shear Module
  • oes_solids Module
  • oes_springs Module
• random Package
• real Package
  • oes_bars Module
  • oes_beams Module
  • oes_bush Module
  • oes_bush1d Module
  • oes_compositePlates Module
  • oes_gap Module
  • oes_objects Module
  • oes_plates Module
  • oes_rods Module
  • oes_shear Module
  • oes_solids Module
  • oes_springs Module
  • oes_triax Module