A tensile member is being designed for a spacecraft. It must withstand a repeated load and not elongate more than max over its total length L.

The loading (F), dimensions and material are listed below. All answers are in SAE units.

• • Repeat Load (F) = 3125 lbf
  • Length (L) = 2.10 ft
  • max = 0.005 inch
  • Material = Titanium
  • Temper = Aged, 6% Al 4% V alloy

Determine the required diameter (Dr1) of a round rod to withstand the force. Round to the nearest three decimal places. Provide your answer in inches.

6.2 Determine the required diameter (Dr2) to limit elongation to max. Round to the nearest three decimal places. Provide your answer in inches.

6.3 Select an overall minimum diameter (either Dr1 or Dr2) that satisfies both design requirements.

6.4 Round your solution up to the nearest 1/8". Round to the nearest three decimal places. Provide your