Question

True or False

1. ____   A Newtonian fluid is one where the shear stress is non-linearly related to the shear strain rate.
2. ____   Ceramics are ductile at room temperature.
3. ____    Cup and cone failures in a tensile test are associated with ductility.
4. ____   Transgranular cracks in metals occur along grain boundaries.
5. ____   The fracture toughness K_c is independent of specimen thickness.
6. ____   Fatigue results in material failure due to dynamic loading at stresses below the yield strength.
7. ____   Thermoset polymers are not recyclable.
8. ____   Thermoplastic polymers can only have an amorphous microstructure.

Answer 1