def read_and_calc(self, target):
     uobj = UDFManager(target)
     time = []
     g = []
     temp = []
     # データ読み込み
     prev_g = 0.
     for i in range(1, uobj.totalRecord()):
         print("Reading Rec.=", i)
         uobj.jump(i)
         #
         time.append(uobj.get("Time"))
         temp.append(uobj.get('Statistics_Data.Temperature.Batch_Average'))
         #
         if self.mode == 'elong':
             stress = uobj.get("Statistics_Data.Stress.Total.Batch_Average")
             tmp_g = (stress[2] -
                      (stress[0] + stress[1]) / 2.) / (self.deform**2 -
                                                       1 / self.deform)
         elif self.mode == 'shear':
             tmp_stress = uobj.get(
                 'Statistics_Data.Stress.Total.Batch_Average.xy'
             ) - self.ave_xy
             tmp_g = tmp_stress / self.deform
         if tmp_g <= 0:
             tmp_g = prev_g
         g.append(tmp_g)
         prev_g = tmp_g
     # smoothing
     mod_g = signal.savgol_filter(g, 11, 3)
     # pack up
     data = np.stack([time, g, temp], 1)
     data_mod = np.stack([time, mod_g, temp], 1)
     return data, data_mod
 def read_and_calc(self, target, c_strain):
     uobj = UDFManager(target)
     time = []
     temp = []
     stress = []
     strain = []
     # データ読み込み
     prev_stress = 0.
     for i in range(1, uobj.totalRecord()):
         print("Reading Rec.=", i)
         uobj.jump(i)
         #
         time.append(uobj.get("Time"))
         temp.append(uobj.get('Statistics_Data.Temperature.Batch_Average'))
         #
         if self.mode == 'elong':
             strs = uobj.get("Statistics_Data.Stress.Total.Batch_Average")
             tmp_stress = strs[2] - (strs[0] + strs[1]) / 2.
         elif self.mode == 'shear':
             tmp_stress = uobj.get(
                 'Statistics_Data.Stress.Total.Batch_Average.xy'
             )  #- self.ave_xy
         if tmp_stress <= 0:
             tmp_stress = prev_stress
         #
         stress.append(tmp_stress)
         strain.append(c_strain)
         prev_stress = tmp_stress
     #
     stress_part = np.stack([time, stress, temp], 1)
     strain_part = np.stack([time, strain, temp], 1)
     return stress_part, strain_part
	def make_base_udf(self, t_udf):
		if self.calc_mode == 'cycle':
			lamd_str = str(self.cycle_lamd).replace('.', '_')
			rate_str = str("{0:4.0e}".format(self.rate)).replace('.', '_')
			calc_dir = 'Hysteresis_' + self.calc_mode + '_rate_' + rate_str + '_lambda_' + lamd_str
		if os.path.exists(calc_dir):
			print("Use existing dir of ", calc_dir)
		else:
			print("Make new dir of ", calc_dir)
			os.makedirs(calc_dir)
		#
		base = os.path.join(calc_dir, self.base_udf)
		print("Readin file = ", t_udf)
		udf = UDFManager(t_udf)
		self.mod_base_udf(udf)
		udf.write(base)
		return base, calc_dir
 def calc_init(self, target):
     uobj = UDFManager(target)
     uobj.jump(0)
     #
     cell = uobj.get("Structure.Unit_Cell.Cell_Size")
     area_init = cell[0] * cell[1]
     z_init = cell[2]
     #
     uobj.jump(1)
     vol = uobj.get("Statistics_Data.Volume.Batch_Average")
     return area_init, z_init
def read_and_calc(target, c_strain, mode):
    # low = 1e-5
    uobj = UDFManager(target)
    time = []
    temp = []
    stress = []
    strain = []
    gt = []
    # データ読み込み
    prev_stress = 0.
    for i in range(1, uobj.totalRecord()):
        print("Reading Rec.=", i)
        uobj.jump(i)
        #
        time.append(uobj.get("Time"))
        temp.append(uobj.get('Statistics_Data.Temperature.Batch_Average'))
        #
        if mode == 'elong':
            strs = uobj.get("Statistics_Data.Stress.Total.Batch_Average")
            tmp_stress = strs[2] - (strs[0] + strs[1]) / 2.
            if tmp_stress <= 0.05 * prev_stress:
                tmp_stress = 4 * prev_stress / 5
            if tmp_stress < 1e-4:
                tmp_stress = 1e-4
            tmp_gt = tmp_stress / c_strain / 3.
        elif mode == 'shear':
            tmp_stress = uobj.get(
                'Statistics_Data.Stress.Total.Batch_Average.xy'
            )  #- self.ave_xy
            if tmp_stress <= 0.05 * prev_stress:
                tmp_stress = 4 * prev_stress / 5
            if tmp_stress < 1e-4:
                tmp_stress = 1e-4
            tmp_gt = tmp_stress / c_strain
            # tmp_stress = low
        #
        stress.append(tmp_stress)
        strain.append(c_strain)
        gt.append(tmp_gt)

        prev_stress = tmp_stress
    #
    mod_stress = signal.savgol_filter(stress, 5, 3)

    stress_part = np.stack([time, mod_stress, temp], 1)
    strain_part = np.stack([time, strain, temp], 1)
    gt_part = np.stack([time, gt, temp], 1)
    return stress_part, strain_part, gt_part
	def make_base_udf(self, t_udf):
		if os.path.exists(self.calc_dir):
			print("Use existing dir of ", self.calc_dir)
		else:
			print("Make new dir of ", self.calc_dir)
			os.makedirs(self.calc_dir)
		#
		base = os.path.join(self.calc_dir, self.base_udf)
		print("Readin file = ", t_udf)
		u = UDFManager(t_udf)
		u.jump(1)
		u.eraseRecord(record_pos=-999,record_num=-999)
		u.write(base)
		return base
示例#7
0
def read_and_calc(target):
	uobj = UDFManager(target)
	data = []
	for i in range(1, uobj.totalRecord()):
		print("Reading Rec.=", i)
		uobj.jump(i)
		#
		stress = uobj.get('Statistics_Data.Stress.Total.Batch_Average.xy')
		#
		strain = uobj.get('Structure.Unit_Cell.Shear_Strain')
		#
		data.append([strain, stress])
	return data
 def make_base_udf(self, t_udf):
     if os.path.exists(self.calc_dir):
         print("Use existing dir of ", self.calc_dir)
     else:
         print("Make new dir of ", self.calc_dir)
         os.makedirs(self.calc_dir)
     #
     base = os.path.join(self.calc_dir, self.base_udf)
     print("Readin file = ", t_udf)
     u = UDFManager(t_udf)
     # u.jump(u.totalRecord() - 1)
     # ave_xy = u.get('Statistics_Data.Stress.Total.Total_Average.xy')
     u.eraseRecord(0, u.totalRecord() - 2)
     u.write(base)
     return base
	def mod_udf(self, udf_in, rate):
		if self.def_mode == 'elong':
			time_1_step = int(self.res/self.time_div/rate)
			time_total = time_1_step*(self.deform_max - 1)/self.res
		elif self.def_mode == 'shear':
			deform_time = self.deform_max/rate
			time_total = round(deform_time/self.time_div)
			time_1_step = int(self.res/self.time_div/rate)
		#
		u = UDFManager(udf_in)
		# goto global data
		u.jump(-1)

		# Dynamics_Conditions
		p = 'Simulation_Conditions.Dynamics_Conditions.'
		u.put(100000.,			p + 'Max_Force')
		u.put(self.time_div,	p + 'Time.delta_T')
		u.put(time_total,		p + 'Time.Total_Steps')
		u.put(time_1_step,		p + 'Time.Output_Interval_Steps')
		u.put(1.0,				p + 'Temperature.Temperature')
		u.put(0, 				p + 'Temperature.Interval_of_Scale_Temp')
		u.put(0,				p + 'Pressure_Stress.Pressure')

		# Deformation
		if self.def_mode == 'elong':
			p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
			u.put('Cell_Deformation', 		p + 'Method')
			u.put('Simple_Elongation', 		p + 'Cell_Deformation.Method')
			u.put('Initial_Strain_Rate', 	p + 'Cell_Deformation.Simple_Elongation.Input_Method')
			u.put(rate,	 		p + 'Cell_Deformation.Simple_Elongation.Initial_Strain_Rate.Rate')
			u.put(0.5, 						p + 'Cell_Deformation.Simple_Elongation.Poisson_Ratio')
			u.put('z', 						p + 'Cell_Deformation.Simple_Elongation.Axis')
			u.put(1, 						p + 'Cell_Deformation.Interval_of_Deform')
			u.put(0, 						p + 'Cell_Deformation.Deform_Atom')
		elif self.def_mode == 'shear':
			p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
			u.put('Lees_Edwards', 		p + 'Method')
			u.put('Steady', 		p + 'Lees_Edwards.Method')
			u.put(rate, 	p + 'Lees_Edwards.Steady.Shear_Rate')
		
		# Output_Flags
		u.put([1, 1, 1], 'Simulation_Conditions.Output_Flags.Structure')

		# Read_Set_of_Molecules
		p = 'Initial_Structure.Read_Set_of_Molecules'
		u.put(['', -1], p)

		# Generate_Method
		p = 'Initial_Structure.Generate_Method.'
		u.put('Restart', 		p + 'Method')
		u.put(['', -1, 1, 1], 	p + 'Restart')

		# Relaxation
		p = 'Initial_Structure.Relaxation.'
		u.put(0, p + 'Relaxation')
		#--- Write UDF ---
		u.write(udf_in)
		return
示例#10
0
import math
from numpy import *
from UDFManager import *
uobj=UDFManager("./output.udf")
Ns=len(uobj.get("object_type.spherical_particle.Particle_spec[]"))
Nc=uobj.get("object_type.spherical_particle.Particle_spec[].Particle_number")
N1=0
for i in range(Ns):
	N1=N1+Nc[i]
print Ns, Nc, N1
nx=uobj.get("mesh.NPX")
ny=uobj.get("mesh.NPY")
nz=uobj.get("mesh.NPZ")
lx=2**nx
ly=2**ny
lz=2**nz
pi2=3.14159265358979*2.0
dia=uobj.get("A")*2.0
print "#",N1,lx,ly,lz,dia
f_sk = open('sk.dat','w')
mxk=100000
k01=arange(0,mxk)
k02=arange(0,mxk)
k03=arange(0,mxk)
n1    = 10
n2    = 10
delk  = pi2/float(50)
nnk = 0
iz = 0
iy = 0
for ix in range(1, n1):
	def mod_udf(self, uin, pre, direction, lamd):
		time_1_step = round(self.resol/self.time_div/self.rate, -2)
		time_total = round(time_1_step*(lamd - 1)/self.resol, -2)
		#
		udf = UDFManager(uin)
		udf.jump(-1)
		# Dynamics_Conditions
		p = 'Simulation_Conditions.Dynamics_Conditions.'
		udf.put(time_total,		p + 'Time.Total_Steps')
		udf.put(time_1_step,	p + 'Time.Output_Interval_Steps')

		if direction == 'backward':
			# Deformation
			p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
			srate = udf.get(p + 'Cell_Deformation.Simple_Elongation.Deformation_Speed.Speed')
			udf.put(-1*srate,	 p + 'Cell_Deformation.Simple_Elongation.Deformation_Speed.Speed')
		# Generate_Method
		p = 'Initial_Structure.Generate_Method.'
		udf.put('Restart', 			p + 'Method')
		udf.put([pre, -1, 1, 0], 	p + 'Restart')
		#--- Write UDF ---
		udf.write(uin)
		return
	def mod_udf(self, udf_in, rate):
		time_1_step = int(self.res/self.time_div/rate)
		time_total = time_1_step*(self.Lamd_max - 1)/self.res
		#
		u = UDFManager(udf_in)
		# goto global data
		u.jump(-1)

		# Dynamics_Conditions
		p = 'Simulation_Conditions.Dynamics_Conditions.'
		u.put(100000.,			p + 'Max_Force')
		u.put(self.time_div,	p + 'Time.delta_T')
		u.put(time_total,		p + 'Time.Total_Steps')
		u.put(time_1_step,		p + 'Time.Output_Interval_Steps')
		u.put(1.0,				p + 'Temperature.Temperature')
		u.put(0, 				p + 'Temperature.Interval_of_Scale_Temp')
		u.put(0,				p + 'Pressure_Stress.Pressure')

		# Deformation
		p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
		u.put('Cell_Deformation', 		p + 'Method')
		u.put('Simple_Elongation', 		p + 'Cell_Deformation.Method')
		u.put('Initial_Strain_Rate', 	p + 'Cell_Deformation.Simple_Elongation.Input_Method')
		u.put(rate,	 					p + 'Cell_Deformation.Simple_Elongation.Initial_Strain_Rate.Rate')
		u.put(0.5, 						p + 'Cell_Deformation.Simple_Elongation.Poisson_Ratio')
		u.put('z', 						p + 'Cell_Deformation.Simple_Elongation.Axis')
		u.put(1, 						p + 'Cell_Deformation.Interval_of_Deform')
		u.put(0, 						p + 'Cell_Deformation.Deform_Atom')

		# Read_Set_of_Molecules
		p = 'Initial_Structure.Read_Set_of_Molecules'
		u.put([self.base_udf, -1], p)

		# Generate_Method
		p = 'Initial_Structure.Generate_Method.'
		u.put('Restart', 					p + 'Method')
		u.put([self.base_udf, -1, 1, 0], 	p + 'Restart')

		# Relaxation
		p = 'Initial_Structure.Relaxation.'
		u.put(0, p + 'Relaxation')

		#--- Write UDF ---
		u.write(udf_in)
		return
示例#13
0
def read_and_calc(area_init, z_init, target):
    uobj = UDFManager(target)
    data = []
    for i in range(1, uobj.totalRecord()):
        print("Reading Rec.=", i)
        uobj.jump(i)
        #
        cell = uobj.get("Structure.Unit_Cell.Cell_Size")
        #
        stress = uobj.get("Statistics_Data.Stress.Total.Batch_Average")
        t_stress = calc_stress(cell, stress, area_init)
        #
        bond_stress = uobj.get("Statistics_Data.Stress.Bond.Batch_Average")
        bond = calc_stress(cell, bond_stress, area_init)
        #
        non_bond_stress = uobj.get(
            "Statistics_Data.Stress.Non_Bond.Batch_Average")
        non_bond = calc_stress(cell, non_bond_stress, area_init)
        #
        strain = uobj.get("Structure.Unit_Cell.Cell_Size.c") / z_init
        #
        temp = uobj.get("Statistics_Data.Temperature.Batch_Average")
        #
        data.append([strain, t_stress, non_bond, bond, temp])
    return data
示例#14
0
	def step_elong(self, base, udf_in, time_temp):
		u = UDFManager(base)
		u.jump(-1)

		# Dynamics_Conditions
		p = 'Simulation_Conditions.Dynamics_Conditions.'
		u.put(100000.,		p + 'Max_Force')
		u.put(time_temp[0],	p + 'Time.delta_T')
		u.put(time_temp[1],	p + 'Time.Total_Steps')
		u.put(time_temp[2],	p + 'Time.Output_Interval_Steps')
		#
		u.put(1.0,			p + 'Temperature.Temperature')
		u.put(time_temp[4], p + 'Temperature.Interval_of_Scale_Temp')
		#
		u.put(0,			p + 'Pressure_Stress.Pressure')

		# Deformation
		p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
		u.put('Cell_Deformation', 		p + 'Method')
		u.put('Simple_Elongation', 		p + 'Cell_Deformation.Method')
		u.put('Initial_Strain_Rate', 	p + 'Cell_Deformation.Simple_Elongation.Input_Method')
		u.put(self.step_rate,	 		p + 'Cell_Deformation.Simple_Elongation.Initial_Strain_Rate.Rate')
		u.put(0.5, 						p + 'Cell_Deformation.Simple_Elongation.Poisson_Ratio')
		u.put('z', 						p + 'Cell_Deformation.Simple_Elongation.Axis')
		u.put(1, 						p + 'Cell_Deformation.Interval_of_Deform')
		u.put(0, 						p + 'Cell_Deformation.Deform_Atom')

		# Read_Set_of_Molecules
		p = 'Initial_Structure.Read_Set_of_Molecules'
		u.put([self.base_udf, -1], p)

		# Generate_Method
		p = 'Initial_Structure.Generate_Method.'
		u.put('Restart', 					p + 'Method')
		u.put([self.base_udf, -1, 1, 1], 	p + 'Restart')

		# Relaxation
		p = 'Initial_Structure.Relaxation.'
		u.put(0, p + 'Relaxation')

		#--- Write UDF ---
		u.write(os.path.join(self.calc_dir, udf_in))
		return
    def step_deform(self, base, axis, udf_in, time_temp, target_dir):
        u = UDFManager(base)
        u.jump(-1)

        # Dynamics_Conditions
        p = 'Simulation_Conditions.Dynamics_Conditions.'
        u.put(100000., p + 'Max_Force')
        u.put(time_temp[0], p + 'Time.delta_T')
        u.put(time_temp[1], p + 'Time.Total_Steps')
        u.put(time_temp[2], p + 'Time.Output_Interval_Steps')
        #
        u.put(1.0, p + 'Temperature.Temperature')
        u.put(time_temp[4], p + 'Temperature.Interval_of_Scale_Temp')
        #
        u.put(0, p + 'Pressure_Stress.Pressure')

        # Deformation
        if self.mode == 'elong':
            p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
            u.put('Cell_Deformation', p + 'Method')
            u.put('Simple_Elongation', p + 'Cell_Deformation.Method')
            u.put('Initial_Strain_Rate',
                  p + 'Cell_Deformation.Simple_Elongation.Input_Method')
            u.put(
                self.step_rate, p +
                'Cell_Deformation.Simple_Elongation.Initial_Strain_Rate.Rate')
            u.put(0.5, p + 'Cell_Deformation.Simple_Elongation.Poisson_Ratio')
            u.put('z', p + 'Cell_Deformation.Simple_Elongation.Axis')
            u.put(1, p + 'Cell_Deformation.Interval_of_Deform')
            u.put(0, p + 'Cell_Deformation.Deform_Atom')
        elif self.mode == 'shear':
            p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
            u.put('Lees_Edwards', p + 'Method')
            u.put('Steady', p + 'Lees_Edwards.Method')
            u.put(self.step_rate, p + 'Lees_Edwards.Steady.Shear_Rate')

        # Output_Flags
        u.put([1, 1, 1], 'Simulation_Conditions.Output_Flags.Structure')

        # Read_Set_of_Molecules
        p = 'Initial_Structure.Read_Set_of_Molecules'
        u.put(['', -1], p)

        # Generate_Method
        p = 'Initial_Structure.Generate_Method.'
        u.put('Restart', p + 'Method')
        u.put(['', -1, 1, 1], p + 'Restart')

        # Relaxation
        p = 'Initial_Structure.Relaxation.'
        u.put(0, p + 'Relaxation')

        # Rotate system
        self.rotate_position(u, axis)

        #--- Write UDF ---
        u.write(os.path.join(target_dir, udf_in))
        return
    def read_step_stress(self, t_udf):
        print("Readin file = ", t_udf)
        area_init, z_init = self.calc_init(t_udf)
        uobj = UDFManager(t_udf)
        time = []
        strain = []
        g = []
        stress = []
        temp = []
        # データ読み込み
        prev_stress = 0.
        prev_g = 0.
        for rec in range(uobj.totalRecord()):
            print("Reading Rec.=", rec)
            uobj.jump(rec)
            #
            time.append(uobj.get("Time"))
            if self.mode == 'elong':
                tmp_strain = uobj.get(
                    "Structure.Unit_Cell.Cell_Size.c") / z_init
            elif self.mode == 'shear':
                tmp_strain = uobj.get('Structure.Unit_Cell.Shear_Strain')
            strain.append(tmp_strain)
            #
            if rec == 0:
                tmp_stress = prev_stress
                tmp_g = prev_g
                temp.append(1.)
            else:
                temp.append(
                    uobj.get('Statistics_Data.Temperature.Batch_Average'))
                if self.mode == 'elong':
                    stress_list = uobj.get(
                        "Statistics_Data.Stress.Total.Batch_Average")
                    tmp_stress = stress_list[2] - (stress_list[0] +
                                                   stress_list[1]) / 2.
                    tmp_g = tmp_stress / (tmp_strain**2 - 1 / tmp_strain)
                elif self.mode == 'shear':
                    tmp_stress = uobj.get(
                        'Statistics_Data.Stress.Total.Batch_Average.xy'
                    ) - self.ave_xy
                    tmp_g = tmp_stress / tmp_strain
                if tmp_stress <= 0:
                    tmp_stress = prev_stress
                    tmp_g = prev_g
            stress.append(tmp_stress)
            g.append(tmp_g)
            #
            prev_stress = tmp_stress
            prev_g = tmp_g
        #
        mod_g = signal.savgol_filter(g, 11, 3)
        #
        gt_step_mod = np.stack([time, mod_g, temp], 1)
        gt_step = np.stack([time, g, temp], 1)
        ss_step = np.stack([strain, stress, temp], 1)

        self.save_data(ss_step, 'ss_step.dat')
        self.save_data(gt_step, 'gt_step.dat')
        self.save_data(gt_step_mod, 'gt_step_mod.dat')
        return gt_step, gt_step_mod
示例#17
0
	def eq_udf(self, template, read_udf, present_udf, time_temp):
		u = UDFManager(os.path.join(self.calc_dir, template))
		u.jump(-1)

		#--- Simulation_Conditions ---
		# Dynamics_Conditions
		p = 'Simulation_Conditions.Dynamics_Conditions.'
		u.put(time_temp[0], p+'Time.delta_T')
		u.put(time_temp[1], p+'Time.Total_Steps')
		u.put(time_temp[2], p+'Time.Output_Interval_Steps')
		u.put(time_temp[4], p + 'Temperature.Interval_of_Scale_Temp')

		# Deformation
		p = "Simulation_Conditions.Dynamics_Conditions.Deformation."
		u.put('None',	p + 'Method')

		#--- Initial_Structure ---
		p = 'Initial_Structure.Read_Set_of_Molecules'
		u.put([self.base_udf, -1], p)
		p = 'Initial_Structure.Generate_Method.'
		u.put('Restart', 			p+'Method')
		u.put([read_udf, -1, 1, 1], p+'Restart')

		#--- Write UDF ---
		u.write(os.path.join(self.calc_dir, present_udf))
		return
示例#18
0
def read_and_calc(target):
    if target.split('_')[0] == 'Cycle':
        sim_type = target.split('_')[4]
    else:
        sim_type = target.split('_')[3]
    uobj = UDFManager(target)
    if sim_type == 'forward':
        uobj.jump(0)
        cell = uobj.get("Structure.Unit_Cell.Cell_Size")
        area_init = cell[0] * cell[1]
        z_init = cell[2]
        data = [[1.0, 0, 0, 0]]
    elif sim_type == 'backward':
        uobj.jump(1)
        vol = uobj.get("Statistics_Data.Volume.Batch_Average")
        area_init = vol**(2. / 3.)
        z_init = vol**(1. / 3.)
        data = []
    for i in range(1, uobj.totalRecord()):
        print("Reading Rec.=", i)
        uobj.jump(i)
        #
        cell = uobj.get("Structure.Unit_Cell.Cell_Size")
        #
        stress = uobj.get("Statistics_Data.Stress.Total.Batch_Average")
        t_stress = calc_stress(cell, stress, area_init)
        #
        bond_stress = uobj.get("Statistics_Data.Stress.Bond.Batch_Average")
        bond = calc_stress(cell, bond_stress, area_init)
        #
        non_bond_stress = uobj.get(
            "Statistics_Data.Stress.Non_Bond.Batch_Average")
        non_bond = calc_stress(cell, non_bond_stress, area_init)
        #
        strain = uobj.get("Structure.Unit_Cell.Cell_Size.c") / z_init
        #
        temp = uobj.get("Statistics_Data.Temperature.Batch_Average")
        #
        data.append([strain, t_stress, non_bond, bond, temp])
    return data
    def read_step_stress(self, t_udf):
        print("Readin file = ", t_udf)
        area_init, z_init = self.calc_init(t_udf)
        uobj = UDFManager(t_udf)
        time = []
        strain = []
        stress = []
        temp = []
        # データ読み込み
        prev_stress = 0.
        for rec in range(uobj.totalRecord()):
            print("Reading Rec.=", rec)
            uobj.jump(rec)
            #
            time.append(uobj.get("Time"))
            if self.mode == 'elong':
                tmp_strain = uobj.get(
                    "Structure.Unit_Cell.Cell_Size.c") / z_init
            elif self.mode == 'shear':
                tmp_strain = uobj.get('Structure.Unit_Cell.Shear_Strain')
            strain.append(tmp_strain)
            #
            if rec == 0:
                tmp_stress = prev_stress
                temp.append(1.)
            else:
                temp.append(
                    uobj.get('Statistics_Data.Temperature.Batch_Average'))
                if self.mode == 'elong':
                    stress_list = uobj.get(
                        "Statistics_Data.Stress.Total.Batch_Average")
                    tmp_stress = stress_list[2] - (stress_list[0] +
                                                   stress_list[1]) / 2.
                elif self.mode == 'shear':
                    tmp_stress = uobj.get(
                        'Statistics_Data.Stress.Total.Batch_Average.xy'
                    )  #- self.ave_xy
                if tmp_stress <= 0:
                    tmp_stress = prev_stress
            stress.append(tmp_stress)
            #
            prev_stress = tmp_stress
        #
        stress_step = np.stack([time, stress, temp], 1)
        strain_step = np.stack([time, strain, temp], 1)
        ss = np.stack([strain, stress, temp], 1)

        self.plot(strain_step, 'strain_step.dat')

        self.plot(stress_step, 'stress_step.dat')
        self.plot(ss, 'ss.dat')
        return stress_step, strain_step