Question

1. A specimen of an unknown material is subjected to tensile test. It presents a square Cross-Section (36 mm on each side) and an initial length of 161 mm. Once it is pulled in tension to a load of 72,472 N, it experiences an elongation of: 0.44 mm.

Assuming an elastic behavior, determine Young's Modulus for this material (in GPa).

2. A specimen of an unknown material is subjected to tensile test. It presents a square Cross-Section (32 mm on each side) and an initial length of 238 mm. Once it is pulled in tension to a load of 75,391 N, it experiences an elongation of: 0.59 mm.

Assuming an elastic behavior, and a Poisson's ratio of 0.33, determine the shear modulus for this material (in GPa).

Answer 1