def test_sigma_dorn_zero(self):
m = GMS()
material = test_material()
temperature = 1500.0
target = 0.0
result = m.sigma_dorn(material, temperature, strain_rate)
self.assertEqual(result, target)
def test_sigma_dorn_nan_a_d(self):
m = GMS()
material = test_material()
material['a_d'][0] = 0
target = np.nan
result = m.sigma_dorn(material, temp, strain_rate)
self.assertIs(result, target)
def test_sigma_dorn(self):
m = GMS()
material = test_material()
target = 182170257.3512531
result = m.sigma_dorn(material, temp, strain_rate)
self.assertEqual(result, target)