A rigid bar ABCDE is hinged at end A and supported by three cables at points B and C and D Cable C has a nominal diameter of 12 mm and an area of 76.7 mm2, and an ultimate load of 102 KN. Cable B and D has a diameter of 20mm and an effective area of 173 mm2, and an ultimate load of 231 Kn. The cables have an effective modulus of elasticity 140 GPa and a thermal expansion coefficient of  = 12 x 10-6 / ºC. A charge P acts at the end E of the bar. a) What is the allowable load P if the temperature increases by 60ºC and a safety factor of at least 5 is required against your ultimate charge? b) Determine the displacement of point E on the bar. Arigidbar ABCDE is hinged at end A andsupported by three cables at points B and C and DCable C has a nominal diameter of 12 mm and an area of 76.7 mm2,and an ultimate load of 102 KN.Cable B and D has a diameter of 20mm and an effective areaof 173 mm2, andan ultimate load of 231 Kn.The cables have an effective modulus of elasticity140 GPa and athermal expansion coefficient of a = 12x10-6/ C!A charge P acts at the end E of the bar.a) What isthe allowableload Pif the temperatureincreases by 60 Cand a safety factor of at least 5 is requiredagainstyour ultimate charge?b) Determine the displacement of point E on the bar.ds-dc--dgABDE2b--2b-

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Answered: A rigid bar ABCDE is hinged at end A…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A rigid bar ABCDE is hinged at end A and supported by three cables at points B and C and D Cable C has a nominal diameter of 12 mm and an area of 76.7 mm2, and an ultimate load of 102 KN. Cable B and D has a diameter of 20mm and an effective area of 173 mm2, and an ultimate load of 231 Kn. The cables have an effective modulus of elasticity 140 GPa and a thermal expansion coefficient of  = 12 x 10-6 / ºC. A charge P acts at the end E of the bar. a) What is the allowable load P if the temperature increases by 60ºC and a safety factor of at least 5 is required against your ultimate charge? b) Determine the displacement of point E on the bar.

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