2.5-3 A rigid bar of weight W = 750 lb hangs from three equally spaced wires, two of steel and one of aluminum (see figure). The diameter of the wires is 1/8 in. Before they were loaded, all three wires had the same length. What temperature increase AT in all three wires will result in the entire load being carried by the steel wires? (Assume E, = = 6.5 × 10-0/°F, and a, = 12 × 10-6/ºF.) 30 × 10° psi, a, %3D S A || S W = 750 lb

2.5-3 A rigid bar of weight W = 750 lb hangs from three equally spaced wires, two of steel and one of aluminum (see figure). The diameter of the wires is 1/8 in. Before they were loaded, all three wires had the same length. What temperature increase AT in all three wires will result in the entire load being carried by the steel wires? (Assume E, = = 6.5 × 10-0/°F, and a, = 12 × 10-6/ºF.) 30 × 10° psi, a, %3D S A || S W = 750 lb

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.5.3P: A rigid bar of weight W = 750 lb hangs from three equally spaced wires: two of steel and one of...

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

2.5-3 A rigid bar of weight W = 750 lb hangs from three
equally spaced wires, two of steel and one of aluminum
(see figure). The diameter of the wires is 1/8 in. Before
they were loaded, all three wires had the same length.
What temperature increase AT in all three wires will
result in the entire load being carried by the steel wires?
(Assume E, = 30 × 10® psi, a, = 6.5 × 10-0/°F, and aa =
12 x 10-6/°F.)
S
A S
W = 750 lb
%3D

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