1. Engineering
  2. Mechanical Engineering
  3. 2 12 points the following problem was worked as an...

Question: 2 12 points the following problem was worked as an...

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2.) (12 Points) The following problem was worked as an example in class assuming the reduction in cross sectional area of the rod was negligible due to the relatively small amount of elongation when the load was applied. For this assignment, rework the problem including the effects of the reduction in area Note: You must include the effects of the reduction in cross sectional area to receive full credit for this problem A solid cylindrical bar of 5-mm diameter is slowly stretched from an initial length of 100 mm to a final length of 101 mm. The normal stress acting at the end of the bar varies according to ơ-E(x-x)/xi, where x is the position of the end of the bar, xi įs the initial length, and E is a material constant (Youngs modulus). For E 2x107 kPa, determine the work done on the bar (J). Ans. U=1.95 J
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