How to Find the Resultant Internal Forces with Equilibrium. Hibbeler Mechanics of Materials Prob 1-1

In this video, we find the resultant internal forces of moment, shear and axial (or normal) at a given internal location and point. This problem is solved by determining the required support reactions, then cutting the member to calculate the resultant internal forces using equilibrium. This problem is 1-1 (or 1.1) from R. C. Hibbeler Mechanics of Materials textbook.

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Problem statement:
The shaft is supported by a smooth thrust bearing a B and a journal bearing at C. Determine the resultant internal loadings acting on the cross section at E.

Problem walkthrough steps:
Draw a quick free body diagram (if necessary)
Determine which side of the cut to utilize
Calculate the required reactions
Cut the member at the necessary location
Place the internal forces & moments in the positive sign convention direction
-Use equilibrium to calculate the required internal forces.

Topics of this problem include:
Free Body Diagram
Supports
Reactions
Internal forces
Resultant internal forces
Normal force
Axial Force
Shear force
Internal moment
Vector Mechanics
Hibbeler problem 1.1


Engineering mechanics of materials
Internal forces – equilibrium of deformable bodies
College level
Internal forces problem 1.1
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