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Testing

 

Test 1: The rack was placed flush against a wall and two road bikes were placed on the rack. The rack was left with the bikes loaded for two days. The deflection from the wall of the rack was measured. Result: Success, the rack held the bicycles and did not deflect at all.

 

Test 2: The rack was placed on a smooth concrete floor and placed flush against a wall. The rack was then loaded with two road bikes to see if the legs would slip out on a smooth floor. Result: Success, even without the rubber, the legs of the rack did not slip.

 

Test 3: The rack was loaded with two sets of 30lb weights on ropes at the top and bottom load bearing horizontal members. This test was designed to check my pre-construction deflection analysis . The deflection was measured with a tape measure in the middle of the top of the rack.(Figure T-1). Result: Success, the rack deflected 1.22-1.25in as predicted in the analysis phase.

 

Test 4: The rack was placed flush against a wall and loaded with 40lb weights on ropes at the top and bottom load bearing horizontal members. This was an overload test to see if the rack conformed to the safety factor of 2.0. The typical road bike weight is 20lbs. Result: Success, the rack did not fail.

 

Figure T-1: Deflection measured under two 30lb loads.

 

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