structure

structure

traction

these forces scretch the body on which yhey act . traction forces are opposiite and are expertd on the outside of the body ,in the same direction way round

comppresion

the forces crush or compress the body on wich they act .they compression forces are opposite and are exerted inside the body ,in same direction and in the opposite direction.

bendig

when these forces act on a body ,they cause it to bend .Beanms ,bridgets and benches are acted on by bending forces

torsion

these forces have twisting action on the body .torsion occurs in axles ,screws and corkscrews

shear

shear forces have a cutting action.they are close together and are exercised in the opposite direction and perpemdicular to the onbject .Shear forces occurs on hook scissors and conference chairs

BUCLING

it occurs in long ,thin objects that are acted on by compresion thin appears to cause additona twisting buckling occurs when we press down