From DT Online

Compression describes the forces which try to squash or push things together, as if in a rugby scrum. These forces are known as compressive forces and are measured in newtons.

  • Compression is the opposite of Tension.
  • The parts of a structure, or members, which contain these forces are known as Struts.
  • Components subjected to Compression need to be made from materials with good Compressive strength.