Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in each rod if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm2. Use 73.1 GPa and 23 x 10-6/ °C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively. E 2 m G 1m D 1.1 m B 125 m 15 m

Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in each rod if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm2. Use 73.1 GPa and 23 x 10-6/ °C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively. E 2 m G 1m D 1.1 m B 125 m 15 m

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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Concept explainers

Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.

Question

Three aluminum rods support the
rigid L-shaped bracket BCF as
shown in the figure. Determine the
stress in each rod if rod FG is cooled
by 50°C. All three rods have the
same cross-sectional area of 1000
mm2. Use 73.1 GPa and 23 x 10-6/
°C for the modulus of elasticity and
the coefficient of thermal expansion
of aluminum, respectively.
2 m
1 m
D
1.1 m
B.
1 m
1.25 m
1.5 m

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