Rigid bar ABC is supported by member (1), which has a cross-sectional area of 0.7 in.², an elastic modulus of E = 10300 ksi, and a coefficient of thermal expansion of a = 12.0 x 10-6/°F. Assume that a = 105 in., b = 50 in., and c = 160 in. After load P is applied to the rigid bar and the temperature rises 50°F, a strain gage affixed to member (1) measures a strain increase of 1980 με. Determine the magnitude of applied load P. Note: Assume the strain measuring system does not automatically compensate for temperature changes.

Rigid bar ABC is supported by member (1), which has a cross-sectional area of 0.7 in.², an elastic modulus of E = 10300 ksi, and a coefficient of thermal expansion of a = 12.0 x 10-6/°F. Assume that a = 105 in., b = 50 in., and c = 160 in. After load P is applied to the rigid bar and the temperature rises 50°F, a strain gage affixed to member (1) measures a strain increase of 1980 με. Determine the magnitude of applied load P. Note: Assume the strain measuring system does not automatically compensate for temperature changes.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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

Rigid bar ABC is supported by member (1), which has a cross-sectional area of 0.7 in.², an elastic modulus of E = 10300 ksi, and a
coefficient of thermal expansion of a = 12.0 x 10-6/°F. Assume that a = 105 in., b = 50 in., and c = 160 in. After load P is applied to the
rigid bar and the temperature rises 50°F, a strain gage affixed to member (1) measures a strain increase of 1980 μe. Determine the
magnitude of applied load P.
Note: Assume the strain measuring system does not automatically compensate for temperature changes.
Answer:
P =
Mi
N
b
kips
Strain
gage
(1)

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