In mechanics, compression is the application of balanced inward ("pushing") forces to different points on a material or structure, that is, forces with no net sum or torque directed so as to reduce its size in one or more directions. It is contrasted with tension or traction, the application of balanced outward ("pulling") forces, and with shearing forces, directed so as to displace layers of the material parallel to each other.
In mechanics, compression is the application of balanced inward ("pushing") forces to different points on a material or structure, that is, forces with no net sum or torque directed so as to reduce its size in one or more directions. It is contrasted with tension or traction, the application of balanced outward ("pulling") forces, and with shearing forces, directed so as to displace layers of the material parallel to each other.
Source: Wikipedia "Compression (physics)" · CC BY-SA 4.0
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