def test_fatigue_life(self): sncurves.compliance("2012.10") for item in self.data: f = sncurves.get_sn_curve(item["curve"], seawater=item["seawater"], cp=item["cp"]) expected = item["n"] sigma = item["sigma"] t = item["t"] self.assertAlmostEqual(f(sigma, t=t), expected, delta=1.0, msg="\nTEST ITEM = {}\n{}".format( item, f.params)) if item["t"] <= 25.0: # For t <= 25 it should be ok to skip argument *t* self.assertAlmostEqual(f(sigma), expected, delta=1.0, msg="\nTEST ITEM = {}\n{}".format( item, f.params)) elif f.params.k != 0: # For t > 25 and k != 0 the result should be incorrect # if argument *t* is omitted self.assertNotEqual(np.round(f(sigma)), round(expected), msg="\nTEST ITEM = {}\n{}".format( item, f.params))
def test_scf(self): sncurves.compliance("2012.10") sn = sncurves.get_sn_curve("T", seawater=True, cp=True) self.assertEqual(sn(1000), sn(100, scf=10)) # For curve T the thickness effect factor k changes for scf > 10 self.assertNotEqual(sn(1000, t=50), sn(10, t=50, scf=100))
def test_scf(self): sncurves.compliance("2014.06") sn = sncurves.get_sn_curve("T", seawater=True, cp=True) self.assertEqual(sn(1000), sn(100, scf=10)) # For curve T the thickness effect factor k changes for scf > 10 self.assertNotEqual(sn(1000, t=50), sn(10, t=50, scf=100))
def test_fatigue_life(self): sncurves.compliance("2012.10") for item in self.data: f = sncurves.get_sn_curve(item["curve"], seawater=item["seawater"], cp=item["cp"]) expected = item["n"] sigma = item["sigma"] t = item["t"] self.assertAlmostEqual(f(sigma, t=t), expected, delta=1.0, msg="\nTEST ITEM = {}\n{}".format(item, f.params)) if item["t"] <= 25.0: # For t <= 25 it should be ok to skip argument *t* self.assertAlmostEqual(f(sigma), expected, delta=1.0, msg="\nTEST ITEM = {}\n{}".format(item, f.params)) elif f.params.k != 0: # For t > 25 and k != 0 the result should be incorrect # if argument *t* is omitted self.assertNotEqual(np.round(f(sigma)), round(expected), msg="\nTEST ITEM = {}\n{}".format(item, f.params))