STRESS

STRESS

1. is the internal tension that occurs in all bodies that are acted on by one or more forces

2. Traction

   • traction forces are opposing and are exerted on the outside of trhe body , in the same direction and the opposite way round

3. compression

   • compression forces are opposing and are exertedon the inside of the body , in the same direction and the opposite way round

4. bending

   • when these forces act on a body they cause it to bend

5. Torsion

   • these forces have a twisting action on the body

6. shear

   • shear forces occur in hooks, scissors lecture chairs

7. buckling

   • it occurs in long , thin objects that are acted on by comppresion