Q4 (a) You have been asked to select the best material for redesigning a walking stick (Figure Q4 (a)). It is basically

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Q4 A You Have Been Asked To Select The Best Material For Redesigning A Walking Stick Figure Q4 A It Is Basically 1 (111.73 KiB) Viewed 23 times

Q4 (a) You have been asked to select the best material for redesigning a walking stick (Figure Q4 (a)). It is basically a long pole with fixed length, L, and an unknown cross-section, A. In order to give strong support, the pole must store as much elastic energy as possible. It must be able to support under end load without buckling and the cost of material less than $o [in USD]. What is the performance for this design? (10 marks) (b) Derive the performance index for stored energy of the walking stick. The buckling equation, stored energy (in Joule) and cost (in USD $/kg) equation are given; Fend Buckling πA²E 41² Stored energy; U = Cost; $o CpLA OF AL 4E Figure Q4 (a) (15 marks)