Rigid bar ABC is supported by two identical solid bronze [E = 111 GPa, a = 15.3 x 10-6/°C] rods, and a solid steel [E = 219 GPa,α = 11.9 × 10-6/°C] rod. The bronze rods (1) each have a diameter of 19 mm and they are symmetrically positioned relative to thecenter rod (2) and the applied load P. Steel rod (2) has a diameter of 18 mm. The bars are unstressed when the structure is assembledat 33°C. Assume L = 0.42 m. When the temperaturedecreases to -23°C, determine:(a) the normal stresses in the bronze and steel rods 6₁, 6₂ (positive if tensile, negative if compressive).(b) the normal strains in the bronze and steel rods ₁, 2 (positive if stretched, negative if shortened).(1)Answers:σ₁ =E₁ =iM.(2)B(1)LMPa, 0₂ = iμε, ἔγ = iMPa.με.

Answered: Image /qna-images/answer/90bb0c43-e263-402d-aec1-78fab095a026.jpg

Rigid bar ABC is supported by two identical solid bronze [E = 111 GPa, a = 15.3 x 10-6/°C] rods, and a solid steel [E = 219 GPa, a = 11.9 × 10-6/°C] rod. The bronze rods (1) each have a diameter of 19 mm and they are symmetrically positioned relative to the center rod (2) and the applied load P. Steel rod (2) has a diameter of 18 mm. The bars are unstressed when the structure is assemble at 33°C. Assume L = 0.42 m. When the temperature decreases to -23°C, determine: (a) the normal stresses in the bronze and steel rods 0₁, 0₂ (positive if tensile, negative if compressive). (b) the normal strains in the bronze and steel rods ₁, 2 (positive if stretched, negative if shortened). (1) Answers: 0₁ = E₁ = i Mi B (1) L MPa, 0₂ = με, Ε = Mi MI με. MPa.

Rigid bar ABC is supported by two identical solid bronze [E = 111 GPa, a = 15.3 x 10-6/°C] rods, and a solid steel [E = 219 GPa, a = 11.9 × 10-6/°C] rod. The bronze rods (1) each have a diameter of 19 mm and they are symmetrically positioned relative to the center rod (2) and the applied load P. Steel rod (2) has a diameter of 18 mm. The bars are unstressed when the structure is assemble at 33°C. Assume L = 0.42 m. When the temperature decreases to -23°C, determine: (a) the normal stresses in the bronze and steel rods 0₁, 0₂ (positive if tensile, negative if compressive). (b) the normal strains in the bronze and steel rods ₁, 2 (positive if stretched, negative if shortened). (1) Answers: 0₁ = E₁ = i Mi B (1) L MPa, 0₂ = με, Ε = Mi MI με. MPa.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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