A steel rod (diameter 40 mm, E = 200 GPa) sits inside a tube made of brass (outer diameter 100 mm, inner diameter 60 mm, E = 100 GPa). Both are 500 mm long and are compressed together between rigid plates by 100 kN. Find the compressive stress σr in the rod.
Axial stress & strain worksheet with answers
A steel rod (diameter 40 mm, E = 200 GPa) sits inside a tube made of bronze (outer diameter 100 mm, inner diameter 50 mm, E = 110 GPa). Both are 800 mm long and are compressed together between rigid plates by 80 kN. Find the compressive stress σr in the rod.
Find the axial strain ε in the brass bar, in microstrain (µε = 10⁻⁶).
Find the elongation δ of the aluminium bar under the axial load.
A steel rod (diameter 40 mm, E = 200 GPa, allowable stress 250 MPa) sits inside a tube made of bronze (outer diameter 100 mm, inner diameter 50 mm, E = 110 GPa, allowable stress 100 MPa). They are compressed together between rigid plates. Find the largest load Pmax.
The stepped bar is fixed at the wall and loaded at its free end. Find the total elongation δ.
Answer key
- 1. σr = 26.53 MPa
- 2. σr = 17.79 MPa
- 3. ε = 778.1 µε
- 4. δ = 0.9095 mm
- 5. Pmax = 817.5 kN
- 6. δ = 2.706 mm
Full step-by-step solutions: practise this topic on examproblems.com.