A solid round bar carries an axial tensile load P. Find the normal stress σ in the bar.
Axial stress & strain worksheet with answers
A steel rod (diameter 20 mm, E = 200 GPa) sits inside a tube made of copper (outer diameter 120 mm, inner diameter 70 mm, E = 120 GPa). Both are 300 mm long and are compressed together between rigid plates by 200 kN. Find the compressive stress σr in the rod.
Find the elongation δ of the aluminium bar under the axial load.
A steel rod (diameter 40 mm, E = 200 GPa) sits inside a tube made of aluminium (outer diameter 80 mm, inner diameter 60 mm, E = 70 GPa). Both are 400 mm long and are compressed together between rigid plates by 100 kN. Find the shortening δ.
The stepped bar is fixed at the wall and loaded at its free end. Find the largest normal stress σmax in the bar.
The stepped bar is fixed at the wall and loaded at its free end. Find the total elongation δ.
Answer key
- 1. σ = 1464 MPa
- 2. σr = 41.75 MPa
- 3. δ = 14.53 mm
- 4. δ = 0.0987 mm
- 5. σmax = 574.7 MPa
- 6. δ = 5.164 mm
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