def test_G_s_single_random_var():
mat = ST_Material(name="test", rho=7850, E=211e9, G_s=[80e9, 82e9])
material = list(mat.__iter__())
assert [m.Poisson
for m in material] == [0.3187500000000001, 0.28658536585365857]
assert [m.G_s for m in material] == [80000000000.0, 82000000000.0]
assert [m.E for m in material] == [211000000000.0, 211000000000.0]
def test_E_single_random_var():
mat = ST_Material(name="test", rho=7850, E=[209e9, 210e9], G_s=81e9)
material = list(mat.__iter__())
assert [m.Poisson
for m in material] == [0.2901234567901234, 0.2962962962962963]
assert [m.E for m in material] == [209000000000.0, 210000000000.0]
assert [m.G_s for m in material] == [81000000000.0, 81000000000.0]
def test_G_s_multiple_random_var():
mat = ST_Material(name="test",
rho=7850,
E=[209e9, 210e9],
Poisson=[0.27, 0.28])
material = list(mat.__iter__())
assert [m.G_s for m in material] == [82283464566.92914, 82031250000.0]
assert [m.E for m in material] == [209000000000.0, 210000000000.0]
assert [m.Poisson for m in material] == [0.27, 0.28]
def test_E_multiple_random_var():
mat = ST_Material(name="test",
rho=7850,
G_s=[80e9, 82e9],
Poisson=[0.27, 0.28])
material = list(mat.__iter__())
assert [m.E for m in material] == [203200000000.0, 209920000000.0]
assert [m.Poisson for m in material] == [0.27, 0.28]
assert [m.G_s for m in material] == [80000000000.0, 82000000000.0]
def test_Poisson_multiple_random_var():
mat = ST_Material(name="test",
rho=7850,
E=[209e9, 210e9],
G_s=[80e9, 82e9])
material = list(mat.__iter__())
assert_allclose([m.Poisson for m in material],
[0.3062499999999999, 0.2804878048780488])
assert [m.E for m in material] == [209000000000.0, 210000000000.0]
assert [m.G_s for m in material] == [80000000000.0, 82000000000.0]
def rand_shaft():
E = [209e9, 211e9]
st_steel = ST_Material(name="Steel", rho=7810, E=E, G_s=81.2e9)
elm = ST_ShaftElement(
L=[1.0, 1.1],
idl=[0.01, 0.02],
odl=[0.1, 0.2],
material=st_steel,
is_random=["L", "idl", "odl", "material"],
)
return elm
def test_error_E_G_s_Poisson():
with pytest.raises(ValueError) as ex:
ST_Material(
name="steel",
rho=7810,
E=[209e9, 211e9],
G_s=[80e9, 82e9],
Poisson=[0.29, 0.30],
)
assert "Exactly 2 arguments from E, G_s and Poisson should be provided" in str(
ex.value)
def rand_disk_from_geometry():
E = [209e9, 211e9]
st_steel = ST_Material(name="Steel", rho=7810, E=E, G_s=81.2e9)
elm = ST_DiskElement.from_geometry(
n=1,
material=st_steel,
width=[0.07, 0.08],
i_d=[0.05, 0.06],
o_d=[0.30, 0.40],
is_random=["material", "width", "i_d", "o_d"],
)
return elm
def test_error_material_name_with_space():
with pytest.raises(ValueError) as ex:
ST_Material(name="with space", rho=1.0, E=[10.0, 20.0], G_s=[1.0, 2.0])
assert "Spaces are not allowed in Material name" in str(ex.value)
def test_Poisson_single_random_var():
mat = ST_Material(name="test", rho=7850, E=211e9, Poisson=[0.27, 0.28])
material = list(mat.__iter__())
assert [m.G_s for m in material] == [83070866141.73228, 82421875000.0]
assert [m.E for m in material] == [211000000000.0, 211000000000.0]
assert [m.Poisson for m in material] == [0.27, 0.28]
def test_rho():
mat = ST_Material(name="test", rho=[7810, 7850], E=209e9, G_s=81e9)
material = list(mat.__iter__())
assert [m.rho for m in material] == [7810, 7850]