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Determine the fracture stress, or biaxial tensile strength, (MPa), density (g/cm 3 ), and specific strength (MPa/(g/cm 3 )) for the two biaxial flexure test
Determine the fracture stress, or biaxial tensile strength, (MPa), density (g/cm3), and specific strength (MPa/(g/cm3)) for the two biaxial flexure test specimens. Compare how the alumina and fiberglass specimens fractured. Propose a cause for any differences you note. (5 points)
| Radius of support: | 0.0127m | ||||
| Ave. diameter (mm) | Average thickness (mm) | Density (g/cm3) | Fracture load (N)* | Poisson's Ratio | |
| Alumina | 31.8 | 1.52 | 2.31 | 415 | 0.32 |
| Fiberglass | 31.99 | 1.65 | 1.15 | 787 | 0.3 |
| add 2.52 N to load for the biaxial flexure calculations to account of the weight of the rod | |||||
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