Source code for RCAIDE.Library.Attributes.Materials.Polytetrafluoroethylene
# RCAIDE/Library/Attributes/Solids/Polytetrafluoroethylene.py
#
# Created: Jan 2025 M. Clarke
#-------------------------------------------------------------------------------
# Imports
#-------------------------------------------------------------------------------
from .Solid import Solid
from array import *
#-------------------------------------------------------------------------------
# Polytetrafluoroethylene Insulation Material
#-------------------------------------------------------------------------------
[docs]
class Polytetrafluoroethylene(Solid):
"""
A class representing Polytetrafluoroethylene (PFTE) and its material properties.
Attributes
----------
electrical_permittivity : float
Material electrical permittivity in kg/m³ (2.1)
dielectric_strength_range : list
Range of dielectric strength in Pa (6E7,8E7)
density : float
Material density in kg/m³ (2170)
thermal_conductivity : float
Heat conduction coefficient in W/(m·K) (0.25)
melting_point : float
Material melting point in K (600)
temperature_range : list
Range of temperature in K (183, 533)
modulus_of_elasticity : float
Material modulus of elasticity in Pa (.49E9)
yield_tensile_strength : float
Stress at which material begins to deform plastically in Pa (24e6)
"""
def __defaults__(self):
"""Sets material properties at instantiation.
Assumptions:
None
Source:
Guo, Ruochen, et al. "Electrical Architecture of 90-seater Electric Aircraft: A Cable Perspective."
IEEE Transactions on Transportation Electrification (2024).
"""
self.electrical_permittivity = 2.1
self.dielectric_strength_range = [6E7, 8E7] # [V/m]
self.density = 2170
self.thermal_conductivity = 0.25
self.melting_point = 600
self.temperature_range = [183 , 533]
self.modulus_of_elasticity = 0.49E9
self.yield_tensile_strength = 24E6
return
