1. Figure below shows a two-member truss supporting a block of weight W. The cross-sectional areas of the members are 800 mm? for AB and 400 mm? for AC. Determine the maximum safe value of W if the working stresses are 110 MPa for AB and 120 MPa for AC. 60° 40° W

1. Figure below shows a two-member truss supporting a block of weight W. The cross-sectional areas of the members are 800 mm? for AB and 400 mm? for AC. Determine the maximum safe value of W if the working stresses are 110 MPa for AB and 120 MPa for AC. 60° 40° W

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.3.10P: Solve the preceding problem if F =90 mm, F = 42 kN, and t = 40°MPa

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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

1. Figure below shows a two-member truss supporting a block of weight W. The cross-sectional areas of the members
are 800 mm? for AB and 400 mm? for AC. Determine the maximum safe value of W if the working stresses are 110 MPa
for AB and 120 MPa for AC.
60°
40°
W

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