Kind of forces
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This document describes five types of forces: compression, which tries to squash an object together; traction, which pulls or stretches an object apart; bending, which tries to make an object bend; torsion, which may cause an object to twist; and shear or cutting forces, which are opposing and very close together. Examples of each type of force are provided, such as compression in the legs of a chair or bending in the shelves of a bookcase.
Kind of forces
- 1. Kind of Forces FORCES DRAWING DESCRIPTION Compression The forces try to squash the object together. Traction The forces pull the object apart stretch the object. Bending The forces try to make it bend. Torsion The member may twist. Shear or cutting The forces are opposing and very close together. Examples: Compression: the legs of a chair. Traction: the straps on a dress Bending: shelves in a bookcase Torsion: a key opening a lock Shear or cutting: paper cut with a guillotine