Answered: For the truss in figure below, the…

For the truss in figure below, the cross-sectional area of the truss members is A = 500 mm² and Young's modulus E= 200 GPa. Let P= 85.1 kN. 1 m √3 m √3 m D B E A P

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 2.8.8P

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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

Calculate The displacement at point A. Enter your answer in mm to 2 decimal places.

For the truss in figure below, the cross-sectional area of the truss members is A = 500 mm² and Young's modulus E= 200 GPa. Let P= 85.1 kN.
√3 m
1 m
1 m
√3 m
D
F
B
с
E
A
P

i) The displacement at point A. Enter your answer in mm to 2 decimal places.
Answer:

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Step 1: Apply unit load method.

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Step 2: Evaluate expressions for internal forces in the truss members.

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Step 3: Evaluate real internal forces and virtual internal forces.

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Step 4: evaluate the deflection at point A.

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