Question: A rigid bar ABCD is pinned at end A and supported by two cables at points B and C (see figure). The cable at B

A rigid bar ABCD is pinned at end A and supported by two cables at points B and C (see figure). The cable at B has nominal diameter dB = 12 mm and the cable at C has nominal diameter dC = 20 mm. A load P acts at end D of the bar.
What is the allowable load P if the temperature rises by 60°C and each cable is required to have a factor of safety of at least 5 against its ultimate load?

dB dc 2b 2b

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