(a) the normal stresses in the bronze and steel rods o1,02 (positive if tensile, negative if compressive). (b) the normal strains in the bronze and steel rods &1, ɛ2 (positive if stretched, negative if shortened).
(a) the normal stresses in the bronze and steel rods o1,02 (positive if tensile, negative if compressive). (b) the normal strains in the bronze and steel rods &1, ɛ2 (positive if stretched, negative if shortened).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![Rigid bar ABC is supported by two identical solid bronze [E - 96 GPa, a = 18.2 x 10-6/°C] rods, and a solid steel [E - 210 GPa, a =
9.9 × 10-6/°C] rod. The bronze rods (1) each have a diameter of 16 mm and they are symmetrically positioned relative to the center
rod (2) and the applied load P. Steel rod (2) has a diameter of 27 mm. The bars are unstressed when the structure is assembled at
22°C. Assume L = 0.3 m. When the temperature
decreases to -15°C, determine:
(a) the normal stresses in the bronze and steel rods o1,02 (positive if tensile, negative if compressive).
(b) the normal strains in the bronze and steel rods e1, €2 (positive if stretched, negative if shortened).
(1)
(1)
L
Answers:
i
MPa, 02 =
i
MPa.
i
HE, E2 =
i
με.
= I3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7c37bb1e-283d-4c21-bd96-169c0f66e22b%2F020e0f66-5155-4573-883c-1ebf8f3247ab%2F78tlep9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Rigid bar ABC is supported by two identical solid bronze [E - 96 GPa, a = 18.2 x 10-6/°C] rods, and a solid steel [E - 210 GPa, a =
9.9 × 10-6/°C] rod. The bronze rods (1) each have a diameter of 16 mm and they are symmetrically positioned relative to the center
rod (2) and the applied load P. Steel rod (2) has a diameter of 27 mm. The bars are unstressed when the structure is assembled at
22°C. Assume L = 0.3 m. When the temperature
decreases to -15°C, determine:
(a) the normal stresses in the bronze and steel rods o1,02 (positive if tensile, negative if compressive).
(b) the normal strains in the bronze and steel rods e1, €2 (positive if stretched, negative if shortened).
(1)
(1)
L
Answers:
i
MPa, 02 =
i
MPa.
i
HE, E2 =
i
με.
= I3
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