3.1

Determine the axial force acting on the specimen when it is extended by (a) 0.2 mm. (b) 4.0 mm.

Figure P3.1

3.2

Determine the extension of the specimen when the axial force on the specimen is 33 kN.

3.3

Determine: (a) the ultimate stress; (b) the fracture stress.

3.4

Determine: (a) the modulus of elasticity; (b) the proportional limit.

3.5

Determine, the total strain, the elastic strain, and the plastic strain when the axial force on the specimen is 33 kN.

3.6

After the axial load was removed, the specimen was observed to have a length of 54 mm. What was the maximum axial load applied to the specimen?

3.7

Determine the offset yield stress at 0.2%

3.8

At the stress level of 420 MPa, determine: (a) the tangent modulus: (b) the secant modulus.

A tensile test specimen having a diameter of in and a gage length of 2 in was tested to fracture. The stress-strain curve from the tension test is shown in Figure P3.9. The lower plot is the expanded region OAB and associated with the strain values given on the lower scale. Solve Problems 3.9 through 3.16 using this graph.

3.9

Determine the axial force acting on the specimen when it is extended by (a) 0.006 in; (b) 0.120 in.

Figure P3.9

3.10

Determine the extension of the specimen when the axial force on the specimen is 20 kips.

3.11

Determine: (a) the ultimate stress; (b) the fracture stress.

3.12

Determine: (a) the...