Static and strength of materials pdf

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static and strength of materials pdf

Stress (mechanics) - Wikipedia

In continuum mechanics , stress is a physical quantity that expresses the internal forces that neighbouring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material which is not a physical quantity. For example, when a solid vertical bar is supporting an overhead weight , each particle in the bar pushes on the particles immediately below it. When a liquid is in a closed container under pressure , each particle gets pushed against by all the surrounding particles. The container walls and the pressure -inducing surface such as a piston push against them in Newtonian reaction. These macroscopic forces are actually the net result of a very large number of intermolecular forces and collisions between the particles in those molecules. Strain inside a material may arise by various mechanisms, such as stress as applied by external forces to the bulk material like gravity or to its surface like contact forces , external pressure, or friction. Any strain deformation of a solid material generates an internal elastic stress , analogous to the reaction force of a spring , that tends to restore the material to its original non-deformed state.
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Introduction - Strength of Materials

Course Name: Statics and Strength of Materials.

Statics and Strength of Materials

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2 COMMENTS

  1. Madeleine B. says:

    This page is the portal of the Reviewer in Strength of Materials.

  2. Naiquen C. says:

    This text is designed for a course that combines statics and mechanics of materials—or strength of materials—offered to engineering students in the sophomore.

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