The pin-connected structure shown in the figure consists of a rigid beam ABCD and two supporting bars. Bar (1) is a bronze alloy [E = 94 GPal with a cross-sectional area of A, = 240 mm?. Bar (2) is an aluminum alloy [E = 71 GPa] with a cross-sectional area of A, = 660 mm?. All bars are unstressed before the load Pis applied; however, there is a 2-mm clearance in the pin connection at A. Assume L, = 2180 mm, a = 920 mm, b = 560 mm, c = 450 mm, and L, = 1620 mm. If a load of P = 53 kN is applied at B, determine (a) the normal stresses in both bars (1) and (2). (b) the downward deflection of point A on the rigid bar. (1) a b D L2 P. (2) Answers: (a) o1 = MPa 02 = MPa (b) VA = mm

The pin-connected structure shown in the figure consists of a rigid beam ABCD and two supporting bars. Bar (1) is a bronze alloy [E = 94 GPal with a cross-sectional area of A, = 240 mm?. Bar (2) is an aluminum alloy [E = 71 GPa] with a cross-sectional area of A, = 660 mm?. All bars are unstressed before the load Pis applied; however, there is a 2-mm clearance in the pin connection at A. Assume L, = 2180 mm, a = 920 mm, b = 560 mm, c = 450 mm, and L, = 1620 mm. If a load of P = 53 kN is applied at B, determine (a) the normal stresses in both bars (1) and (2). (b) the downward deflection of point A on the rigid bar. (1) a b D L2 P. (2) Answers: (a) o1 = MPa 02 = MPa (b) VA = mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

The pin-connected structure shown in the figure consists of a rigid beam ABCD and two supporting bars. Bar (1) is a bronze alloy [E = 94 GPal with a cross-sectional area of A, = 240 mm?. Bar (2) is an aluminum alloy [E = 71 GPa] with a cross-sectional area of A, = 660 mm?. All bars are unstressed before
the load Pis applied; however, there is a 2-mm clearance in the pin connection at A. Assume L, = 2180 mm, a = 920 mm, b = 560 mm, c = 450 mm, and L, = 1620 mm. If a load of P = 53 kN is applied at B, determine
(a) the normal stresses in both bars (1) and (2).
(b) the downward deflection of point A on the rigid bar.
(1)
a
b
D
L2
P.
(2)
Answers:
(a) o1 =
MPa
02 =
MPa
(b) VA =
mm

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