x A 20 cm long rod of uniform rectangular section, 8 mm wide x 1.2 mm thick is bent into the form of a circular arc resu

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X A 20 Cm Long Rod Of Uniform Rectangular Section 8 Mm Wide X 1 2 Mm Thick Is Bent Into The Form Of A Circular Arc Resu 1 (211.61 KiB) Viewed 55 times

x A 20 cm long rod of uniform rectangular section, 8 mm wide x 1.2 mm thick is bent into the form of a circular arc resulting in a central displacement of 0.8 cm. Neglecting second-order quantities in computations, what is the longitudinal surface strain (approximate) in the rod ? (a) 7.2 x 10-4 (b) 8.4 x 10-4 (c) 9.6 x 10-4 (d) 10.8 x 10-4