Concept of Stress - Chapter 1: Introduction Types of...

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ME 323 Course Notes Page 1/3 Chapter 1: Introduction Types of Internal Forces Normal Force, N . This force acts perpendicular to the area. It is developed whenever the external loads tend to push or pull on the two segments of the body. Shear Force, V . The shear force lies in the plane of the area and is developed when the external loads tend to cause the two segments of the body to slide over one another. Torsional Moment or Torque, T . This effect is developed when the external loads tend to twist one segment of the body with respect to the other. Bending Moment, M . The bending moment is caused by the external loads that tend to bend the body about an axis lying within the plane of the area. Coplanar Loadings . If the body is subjected to a coplanar system of forces, then only normal force, shear force, and bending moment components will exist in the section.
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ME 323 Course Notes Page 2/3 Normal and Shear Stresses Normal Stress:
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This note was uploaded on 05/12/2008 for the course ME 323 taught by Professor Andrusiv during the Summer '08 term at University of Louisville.

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Concept of Stress - Chapter 1: Introduction Types of...

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