Civil Engineering > GATE 2017 SET-1 > Strength of Materials
Consider the stepped bar made with a linear elastic material and subjected to an axial load of 1 kN, as shown in the figure.
Segments 1 and 2 have cross-sectional area of 100 mm2 and 60 mm2, Young's modulus of 2 x 105 MPa and 3 x 105 MPa, and length of 400 mm and 900 mm, respectively. The strain energy (in N-mm, up to one decimal place) in the bar due to the axial load is _______.
Correct : 35
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