A steel rod (diameter 30 mm, E = 200 GPa) sits inside a tube made of brass (outer diameter 120 mm, inner diameter 50 mm, E = 100 GPa). Both are 800 mm long and are compressed together between rigid plates by 300 kN. Find the compressive stress σr in the rod.
Axial stress & strain worksheet with answers
A solid round bar carries an axial tensile load P. Find the normal stress σ in the bar.
A steel rod (diameter 20 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 300 kN. Find the shortening δ.
Find the axial strain ε in the aluminium bar, in microstrain (µε = 10⁻⁶).
The stepped bar is fixed at the wall and loaded at its free end. Find the total elongation δ.
A steel segment (diameter 40 mm, length 600 mm, E = 200 GPa) and a segment made of bronze (diameter 30 mm, length 300 mm, E = 110 GPa) are joined end to end and fixed between two rigid walls. An axial load of 20 kN acts at the joint, towards segment 2. Find the magnitude of the stress σ2 in segment 2.
Answer key
- 1. σr = 55.76 MPa
- 2. σ = 176.8 MPa
- 3. δ = 0.5536 mm
- 4. ε = 1892 µε
- 5. δ = 6.902 mm
- 6. σ2 = 10.82 MPa
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