고체역학 (Beer) · Introduction—Concept of Stress · Problem 1.40
고체역학 (Beer) — Introduction—Concept of Stress: Problem 1.40
1.40 A 20-mm-diameter rod made of the same material as rods AC and AD in the truss shown was tested to failure and an ultimate load of 130 kN was recorded. Using a factor of safety of 3.0, determine the required diameter (a) of rod AC, (b) of rod AD.
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