(self)
| 48 | self.assertAlmostEqual(0.0, stress[2, 1]) |
| 49 | |
| 50 | def test_isotropic_material_2D(self): |
| 51 | young = 1000.0 |
| 52 | poisson = 0.3 |
| 53 | mat = Material.create_isotropic(2, 1.0, young, poisson) |
| 54 | self.assertEqual(2, mat.dim) |
| 55 | self.assertEqual(1.0, mat.density) |
| 56 | self.assert_symmetry(mat.material_tensor, mat.dim) |
| 57 | |
| 58 | strain = np.array([ [1.0, 0.0], [0.0, 0.0] ]) |
| 59 | stress = mat.strain_to_stress(strain) |
| 60 | self.assertAlmostEqual(strain[0,0], |
| 61 | stress[0,0]/young - poisson*stress[1,1]/young ) |
| 62 | self.assertAlmostEqual(strain[1,1], |
| 63 | stress[1,1]/young - poisson*stress[0,0]/young ) |
| 64 | self.assertAlmostEqual(strain[0, 1], |
| 65 | stress[0,1] * (1+poisson) / young) |
| 66 | |
| 67 | def test_equivalence(self): |
| 68 | young = 1000.0 |
nothing calls this directly
no test coverage detected