Two circular plates with (2d) and (d) as outer and inner diameters respectively, are clamped together by means of a bolt as shown in Fig. 7.35. The bolt is made of plain carbon steel 45C8 (S, = 380 N/mm² and E = 207000 N/mm²), while the plates are made of aluminium (E = 71000 N/mm²). The initial pre-load in the bolt is 5 kN and the external force acting on the bolted joint is 10 kN. Determine the size of the bolt, if the factor of safety is 2.5. yt

Two circular plates with (2d) and (d) as outer and inner diameters respectively, are clamped together by means of a bolt as shown in Fig. 7.35. The bolt is made of plain carbon steel 45C8 (S, = 380 N/mm² and E = 207000 N/mm²), while the plates are made of aluminium (E = 71000 N/mm²). The initial pre-load in the bolt is 5 kN and the external force acting on the bolted joint is 10 kN. Determine the size of the bolt, if the factor of safety is 2.5. yt

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 2.2.17P: A hollow, circular, cast-iron pipe (Ec =12,000 ksi) supports a brass rod (Ec= 14,000 ksi} and weight...

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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

Two circular plates with (2d) and
(d) as outer and inner diameters respectively, are
clamped together by means of a bolt as shown in
Fig. 7.35. The bolt is made of plain carbon steel
45C8 (S,„ = 380 N/mm? and E = 207000 N/mm²),
while the plates are made of aluminium (E = 71000
N/mm?). The initial pre-load in the bolt is 5 kN
and the external force acting on the bolted joint is
10 kN. Determine the size of the bolt, if the factor
of safety is 2.5.
yt
-2d-
25
125
d
Fig. 7.35

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