def test_Sim_ass_3():
#####From assignment 3####
laminate_q1 = Laminate('p10/90/0_2/p50s',
materialID = 1)
laminate_q1.compute_all()
load = numpy.array([450000,-110000,-130000],dtype=float)
load = load*10**-6
off_stress_norm = load*10**-3
off_strain = laminate_q1.a.dot(off_stress_norm).reshape((3,1))
on_strain = numpy.empty((14,3))
on_stress = numpy.empty((14,3))
for i in range(14):
layer = laminate_q1.layers[i]
on_strain[i,:] = transform_strain(off_strain,'off',layer.theta)
on_stress[i,:] = laminate_q1.layers[0].Q_on.dot(on_strain[i,:])
######
######From new Sim####
#####
my_sim = Sim(layup = 'p10/90/0_2/p50s', materialID = 1)
my_sim.apply_N(numpy.array([[0.4500],[-0.1100],[-0.1300]])*ureg.MNperm)
my_sim.solve()
sim_off_strain = numpy.vstack(my_sim.off_strain)
sim_on_strain = numpy.vstack(my_sim.on_strain)
sim_on_stress = numpy.vstack(my_sim.on_stress)
# sim_off_stress = numpy.vstack(my_sim.off_stress)
for row in sim_off_strain:
# print row
array_assert_error(row,off_strain,tol = 0.001)
# for row in sim_on_strain:
# array_assert_error(row,on_strain,tol=0.001)
array_assert(sim_on_strain[0::2,:],on_strain,precision = 10)
array_assert(sim_on_strain[1::2,:],on_strain,precision = 10)
array_assert(sim_on_stress[0::2,:],on_stress,precision = 10)
array_assert(sim_on_stress[1::2,:],on_stress,precision = 10)
def test_ass5():
sim = Sim(laminate=Laminate(
'0_2/p25/0_2s',
materialID=5, #5
core_thick=0.01))
P = Q_(1000, 'N')
b = Q_(0.11, 'm')
L = Q_(0.51, 'm')
M1 = -P * L / (4 * b)
N1 = 0.5 * P / b
M = Q_([M1.magnitude, 0, 0], M1.units)
N = Q_([N1.magnitude, 0, 0], N1.units)
sim.apply_M(M)
sim.apply_N(N)
sim.solve()
df = sim.return_results()
fail = FailureAnalysis(sim)
R = fail.compute_all()
R_data = fail.make_table()
def print_R_analyz(data):
the_min_idx = data['Lowest R'].idxmin()
lowest_R = data['Lowest R'].iloc[the_min_idx]
ply = data['Ply'].iloc[the_min_idx].split(' ')[0]
print("Lowest R is %.1f and occurs at top of ply number %s." %
(lowest_R, ply))
print "The load vectors R(M) and R(N) which cause failure are:"
print "R(M) [N] : "
print[round(M1.magnitude * lowest_R, 2), 0, 0]
print "R(N) [N/m] : "
print[round(N1.magnitude * lowest_R, 2), 0, 0]
def find_min(dataframe, columns):
lowest_Rs = []
plys = []
modes = [x.split('_')[0] for x in columns]
nonzero_dat = dataframe[dataframe != 0]
for col in columns:
the_data = nonzero_dat[col]
min_index = the_data.idxmin()
lowest_Rs.append(the_data.iloc[min_index])
plys.append(dataframe['Ply'].iloc[min_index])
return pd.DataFrame({
'Mode': modes,
'Lowest R': lowest_Rs,
'Ply': plys
})[['Mode', 'Lowest R', 'Ply']]
max_data = find_min(R_data, 'FT_max,FC_max,MT_max,MC_max,S'.split(','))
print_R_analyz(max_data)
quad_data = find_min(R_data, ['(+)'])
print_R_analyz(quad_data)
print R_data
hashin_data = find_min(R_data,
'FT_hash,FC_hash,MT_hash,MC_hash'.split(','))
hashin_data
print_R_analyz(hashin_data)
fail.find_min
def test_apply_M_k_Sim_p96(): global my_sim_p96 my_sim_p96 = Sim(layup = '0_4/90_4s',materialID = 1) P = -100 * ureg.N L = 0.1 * ureg.meter b = 0.01 * ureg.meter moment = P*L/(4*b) M = Q_([moment.magnitude,0,0],moment.units) k,e = my_sim_p96.apply_M(M,True) assert(e.shape == (my_sim_p96.laminate.num_of_layers(),2,3)) array_assert(k,[-2.34,0.213,0],precision = 2)
def test_apply_M_k_Sim_p96():
global my_sim_p96
my_sim_p96 = Sim(layup='0_4/90_4s', materialID=1)
P = -100 * ureg.N
L = 0.1 * ureg.meter
b = 0.01 * ureg.meter
moment = P * L / (4 * b)
M = Q_([moment.magnitude, 0, 0], moment.units)
k, e = my_sim_p96.apply_M(M, True)
assert (e.shape == (my_sim_p96.laminate.num_of_layers(), 2, 3))
array_assert(k, [-2.34, 0.213, 0], precision=2)
def test_Sim_wrong_key_2():
try:
Sim(blah='45/90')
except KeyError:
pass
else:
raise AssertionError
def test_Sim_wrong_key():
try:
Sim(layup='45/90')
except KeyError:
pass
else:
raise AssertionError
def test_Sim_not_a_kw():
try:
sim = Sim(5)
except TypeError:
pass
else:
raise AssertionError
def test_ass5():
sim = Sim(laminate = Laminate('0_2/p25/0_2s',
materialID = 5, #5
core_thick = 0.01))
P = Q_(1000,'N'); b = Q_(0.11,'m'); L = Q_(0.51,'m')
M1 = -P*L/(4*b); N1 = 0.5*P/b;
M = Q_([M1.magnitude,0,0],M1.units)
N = Q_([N1.magnitude,0,0],N1.units)
sim.apply_M(M)
sim.apply_N(N)
sim.solve()
df = sim.return_results()
fail = FailureAnalysis(sim)
R = fail.compute_all()
R_data = fail.make_table()
def print_R_analyz(data):
the_min_idx = data['Lowest R'].idxmin()
lowest_R = data['Lowest R'].iloc[the_min_idx]
ply = data['Ply'].iloc[the_min_idx].split(' ')[0]
print ("Lowest R is %.1f and occurs at top of ply number %s."
% (lowest_R,ply))
print "The load vectors R(M) and R(N) which cause failure are:"
print "R(M) [N] : "
print [round(M1.magnitude*lowest_R,2),0,0]
print "R(N) [N/m] : "
print [round(N1.magnitude*lowest_R,2),0,0]
def find_min(dataframe,columns):
lowest_Rs = []; plys = [];
modes = [x.split('_')[0] for x in columns]
nonzero_dat = dataframe[dataframe != 0]
for col in columns:
the_data = nonzero_dat[col]
min_index = the_data.idxmin()
lowest_Rs.append(the_data.iloc[min_index])
plys.append(dataframe['Ply'].iloc[min_index])
return pd.DataFrame({'Mode':modes,
'Lowest R':lowest_Rs,
'Ply':plys
})[['Mode','Lowest R','Ply']]
max_data = find_min(R_data,'FT_max,FC_max,MT_max,MC_max,S'.split(','))
print_R_analyz(max_data)
quad_data = find_min(R_data,['(+)'])
print_R_analyz(quad_data)
print R_data
hashin_data = find_min(R_data,'FT_hash,FC_hash,MT_hash,MC_hash'.split(','))
hashin_data
print_R_analyz(hashin_data)
fail.find_min
def test_apply_units():
sim = Sim(layup='45/90', materialID=2)
P = Q_(1000, 'N')
b = Q_(0.11, 'm')
L = Q_(0.51, 'm')
M1 = -P * L / (4 * b)
N1 = 0.5 * P / b
M = Q_([M1.magnitude, 0, 0], M1.units)
N = Q_([N1.magnitude, 0, 0], N1.units)
print type(N1)
try:
sim.apply_M(M)
sim.apply_N(N)
sim.apply_N(N1)
sim.apply_M(M1)
except:
raise
def test_apply_units(): sim = Sim(layup = '45/90',materialID = 2) P = Q_(1000,'N'); b = Q_(0.11,'m'); L = Q_(0.51,'m') M1 = -P*L/(4*b); N1 = 0.5*P/b; M = Q_([M1.magnitude,0,0],M1.units) N = Q_([N1.magnitude,0,0],N1.units) print type(N1) try: sim.apply_M(M) sim.apply_N(N) sim.apply_N(N1) sim.apply_M(M1) except: raise
def test_solve_M():
sim = Sim(layup='45/90', materialID=2)
assert (not sim.solved)
try:
sim.solve()
except sim.WorkflowError:
pass
else:
raise AssertionError("""Did not get a WorkflowError when solving
before applying""")
assert (not sim.solved)
sim.apply_M([500, 500, 500] * ureg.MN)
sim.solve()
assert (sim.solved)
def test_Sim_ass_3():
#####From assignment 3####
laminate_q1 = Laminate('p10/90/0_2/p50s', materialID=1)
laminate_q1.compute_all()
load = numpy.array([450000, -110000, -130000], dtype=float)
load = load * 10**-6
off_stress_norm = load * 10**-3
off_strain = laminate_q1.a.dot(off_stress_norm).reshape((3, 1))
on_strain = numpy.empty((14, 3))
on_stress = numpy.empty((14, 3))
for i in range(14):
layer = laminate_q1.layers[i]
on_strain[i, :] = transform_strain(off_strain, 'off', layer.theta)
on_stress[i, :] = laminate_q1.layers[0].Q_on.dot(on_strain[i, :])
######
######From new Sim####
#####
my_sim = Sim(layup='p10/90/0_2/p50s', materialID=1)
my_sim.apply_N(numpy.array([[0.4500], [-0.1100], [-0.1300]]) * ureg.MNperm)
my_sim.solve()
sim_off_strain = numpy.vstack(my_sim.off_strain)
sim_on_strain = numpy.vstack(my_sim.on_strain)
sim_on_stress = numpy.vstack(my_sim.on_stress)
# sim_off_stress = numpy.vstack(my_sim.off_stress)
for row in sim_off_strain:
# print row
array_assert_error(row, off_strain, tol=0.001)
# for row in sim_on_strain:
# array_assert_error(row,on_strain,tol=0.001)
array_assert(sim_on_strain[0::2, :], on_strain, precision=10)
array_assert(sim_on_strain[1::2, :], on_strain, precision=10)
array_assert(sim_on_stress[0::2, :], on_stress, precision=10)
array_assert(sim_on_stress[1::2, :], on_stress, precision=10)
def test_solve_M():
sim = Sim(layup = '45/90',materialID = 2)
assert(not sim.solved)
try:
sim.solve()
except sim.WorkflowError:
pass
else:
raise AssertionError("""Did not get a WorkflowError when solving
before applying""")
assert(not sim.solved)
sim.apply_M([500,500,500]*ureg.MN)
sim.solve()
assert(sim.solved)
def evaluate_layup(individual, materialID):
list_of_str = ['{0:d}'.format(k) for k in individual]
layup = '/'.join(list_of_str) + 's'
laminate = Laminate(layup, materialID, zc)
sim_1 = Sim(laminate=laminate)
sim_1.apply_N(N_1)
sim_1.apply_M(M_1)
sim_1.solve()
fail = FailureAnalysis(sim_1)
the_mins = fail.find_min()
first_min = min([R[0] for R in the_mins.values()])
sim_1.apply_N(N_2)
sim_1.apply_M(M_2)
fail = FailureAnalysis(sim_1)
the_mins = fail.find_min()
second_min = min([R[0] for R in the_mins.values()])
return float(min((first_min, second_min))),
def test_Sim_layup_id():
my_lam = Laminate('45/90', 2)
sim = Sim(layup='45/90', materialID=2)
def test_Sim_laminate():
my_lam = Laminate('45/90', 2)
sim = Sim(laminate=my_lam)
