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 25 mm, E = 200 GPa) sits inside a tube made of brass (outer diameter 100 mm, inner diameter 70 mm, E = 100 GPa). Both are 400 mm long and are compressed together between rigid plates by 100 kN. Find the compressive stress σr in the rod.
A steel rod (diameter 40 mm, E = 200 GPa) sits inside a tube made of brass (outer diameter 100 mm, inner diameter 50 mm, E = 100 GPa). Both are 600 mm long and are compressed together between rigid plates by 300 kN. Find the shortening δ.
Find the elongation δ of the copper bar under the axial load.
A steel segment (diameter 25 mm, length 600 mm, E = 200 GPa) and a segment made of brass (diameter 60 mm, length 200 mm, E = 100 GPa) are joined end to end and fixed between two rigid walls. An axial load of 60 kN acts at the joint, towards segment 2. Find the magnitude of the stress σ2 in segment 2.
The stepped bar is fixed at the wall and loaded at its free end. Find the largest normal stress σmax in the bar.
Answer key
- 1. σ = 88.42 MPa
- 2. σr = 40.1 MPa
- 3. δ = 0.2142 mm
- 4. δ = 3.023 mm
- 5. σ2 = 19.02 MPa
- 6. σmax = 265.3 MPa
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