3rd post: Stresses and Rigidity

stresses are the physical demands that a body or object must whithstand when one or more external forces are applied to it
there are 5 types of stresses

Compression: This is caused by forces acting on a body that tend to flatten it or reduce its length or thickness.          

         

• Tension: This is caused by forces acting on a body that tend to stretch it.

• Bending: This is caused by forces acting on an element that make it curve or bend.

• Torsion:this is caused by forces acting on a body that  make it twist

• Shear:this is caused by two equal forces applied in opposite directions that act on lines of action close to each other.