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A steel bar 5 0 mm x 5 0 mm in cross section and 1 0 0 mm length is acted upon by a tensile

A steel bar

50

mm x

50

mm in cross section and

100

mm length is acted upon by a tensile load of

200

kn along its axis and

400

kn along the axes of the lateral surface. determine change in dimensions of the bar and change in the volume.

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