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Statement of a problem № 3580

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Two parallel bars of different material with linear coefficient of expansion a1 and a2 , respectively, are riveted together at a distance d apart. An increase in temperature dT will cause them to bend into circular arcs with a common centre subtending an angle T at the centre (Fig. 10.2). Find the mean radius of curvature.

Solution:
Two parallel bars of different material with linear coefficient of expansion a1

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