A cylindrical metal specimen 12.7 mm (0.5 in.) in diameter and 250 mm (10 in.) long is to be subjected to a tensile stre
Posted: Sun Jul 10, 2022 11:43 am
A cylindrical metal specimen 12.7 mm (0.5 in.) in diameter and250 mm (10 in.) long is to be subjected to a tensile stress of 28MPa (4000 psi); at this stress level, the resulting deformationwill be totally elastic.
(a) If the elongation must be less than 0.080 mm (3.2 ×10-3 in.), which of the metals in Table 6.1 aresuitable candidates?
Titanium
Brass
Magnesium
Nickel
Copper
Tungsten
Steel
Aluminum
(b) If, in addition, the maximum permissible diameter decreaseis 1.2 × 10-3 mm (4.7 × 10-5 in.)when the tensile stress of 28 MPa is applied, which of the metalsthat satisfy the criterion in part (a) are suitable candidates?
Brass
Copper
Steel
Tungsten
Magnesium
Nickel
Aluminum
Titanium
(a) If the elongation must be less than 0.080 mm (3.2 ×10-3 in.), which of the metals in Table 6.1 aresuitable candidates?
Titanium
Brass
Magnesium
Nickel
Copper
Tungsten
Steel
Aluminum
(b) If, in addition, the maximum permissible diameter decreaseis 1.2 × 10-3 mm (4.7 × 10-5 in.)when the tensile stress of 28 MPa is applied, which of the metalsthat satisfy the criterion in part (a) are suitable candidates?
Brass
Copper
Steel
Tungsten
Magnesium
Nickel
Aluminum
Titanium