def test_Density1(self):
"""
Calculates ForceDensity from Density
"""
Mat = ACMaterial()
#
# Simply convert force density into density
#
Mat.ForceDensity = LBF/IN**3
Density = (LBF/g/IN**3).asNumber(LBM/IN**3)
self.assertAlmostEqual(Mat.Density.asNumber(LBM/IN**3), Density, 5,
"Filed to calculate Density from ForceDensity")
XylonDens = 0.056 * LBF / IN**3
CompDens = 0.0404 * LBF / IN**3
ZylonCompFD = CompDens
PlyThickness = 1 / 100 * IN / g
ZylonCompAD = CompDens * PlyThickness
###############################################################################
# Fuselage Materials
###############################################################################
# Bulkhead Truss
# 1/8 inch thick with 75% material cut out
cutout = 0.9
ACTrussBH = ACMaterial()
ACTrussBH.Thickness = 0.25 * IN
ACTrussBH.ForceDensity = Balsa.ForceDensity * (1 - cutout)
# Composite Plate (Composite Plate + monokote)
# 1/4 inch thick Divinicel Foam with 2 ply of Composite
ACNoseComp = ACMaterial()
ACNoseComp.AreaDensity = DivinicelFD * 0.25 * IN / g + 2 * ZylonCompAD
# Section Truss (truss structure + monokote)
# 1/8 inch thick with 80% material cut out
cutout = 0.8
ACTrussSkin = ACMaterial()
ACTrussSkin.AreaDensity = Balsa.ForceDensity * (
1 - cutout) * 0.25 * IN / g + Monokote.AreaDensity
# Bulkhead plywood
# 1/8 inch thick with 75% material cut out
XylonDens = 0.056 * LBF / IN**3
CompDens = 0.0404 * LBF / IN**3
ZylonCompFD = CompDens
PlyThickness = 1 / 100 * IN / g
ZylonCompAD = CompDens * PlyThickness
###############################################################################
# Fuselage Materials
###############################################################################
# Bulkhead Truss
# 1/4 inch thick with 75% material cut out
cutout = 0.9
ACTrussBH = ACMaterial()
ACTrussBH.Thickness = 0.25 * IN
ACTrussBH.ForceDensity = Balsa.ForceDensity * (1 - cutout)
# Composite Plate (Composite Plate + monokote)
# 1/4 inch thick Divinicel Foam with 2 ply of Composite
ACNoseComp = ACMaterial()
ACNoseComp.AreaDensity = DivinicelFD * 0.25 * IN / g + 2 * ZylonCompAD
# Section Truss (truss structure + monokote)
# 1/4 inch thick with 80% material cut out
cutout = 0.8
ACTrussSkin = ACMaterial()
ACTrussSkin.AreaDensity = Balsa.ForceDensity * (
1 - cutout) * 0.25 * IN / g + Monokote.AreaDensity
# Bulkhead plywood and balsa
# 1/8 inch thick with 75% material cut out
from Aerothon.DefaultMaterialsLibrary import Steel, AircraftPly, Basswood, Monokote
#
# Materials Set-up
#
Steel = Steel.copy()
ACPly = AircraftPly.copy()
Basswood = Basswood.copy()
Monokote = Monokote.copy()
# Bulkhead plywood
# 1/8 inch thick with 75% material cut out
cutout = 0.75
ACPlyBH = ACMaterial()
ACPlyBH.Thickness = 0.125 * IN
ACPlyBH.ForceDensity = ACPly.ForceDensity * (1 - cutout)
# Section plywood (truss structure + monokote)
# 1/8 inch thick with 80% material cut out
cutout = 0.8
ACPlySkin = ACMaterial()
ACPlySkin.AreaDensity = ACPly.ForceDensity * (
1 - cutout) * 0.125 * IN / g + Monokote.AreaDensity
# Stringer material from basswood (w=0.25 in , t=0.25 in)
w = 0.25 * IN
t = 0.25 * IN
BassStringer = ACMaterial()
BassStringer.LinearForceDensity = Basswood.ForceDensity * w * t
Fuselage = ACFuselage()
XylonDens = 0.056 * LBF / IN**3
CompDens = 0.0404 * LBF / IN**3
ZylonCompFD = CompDens
PlyThickness = 1 / 100 * IN / g
ZylonCompAD = CompDens * PlyThickness
###############################################################################
# Fuselage Materials
###############################################################################
# Bulkhead Truss
# 1/4 inch thick with 75% material cut out
cutout = 0.9
ACTrussBH = ACMaterial()
ACTrussBH.Thickness = 0.25 * IN
ACTrussBH.ForceDensity = Balsa.ForceDensity * (1 - cutout)
# Composite Plate (Composite Plate + monokote)
# 1/4 inch thick Divinicel Foam with 2 ply of Composite
ACNoseComp = ACMaterial()
ACNoseComp.AreaDensity = DivinicelFD * 0.25 * IN / g + 2 * ZylonCompAD
# Section Truss (truss structure + monokote)
# 1/4 inch thick with 80% material cut out
cutout = 0.8
ACTrussSkin = ACMaterial()
ACTrussSkin.AreaDensity = Balsa.ForceDensity * (
1 - cutout) * 0.25 * IN / g + Monokote.AreaDensity
# Bulkhead plywood and balsa
# 1/8 inch thick with 75% material cut out