Metals: Forces & Stresses
Design & Technology: AQA GCSE, topic 4.2.1
Forces & Stresses
Different forces and stresses can cause different effects on materials.

Metals and forces
- Metals can withstand different external forces.
- A variety of forces are applied to metals for aesthetic and functional reasons.

Examples of forces
- Torsion - a twisting force applied to both or one end of a material.
- Shear - forces acting across the material in opposite directions.
- Tension - pulling force which is outwards.
- Compression - pushing force which is inwards.
- Bending - forces at an angle to sheet materials.
Test yourself on Metals: Forces & Stresses
What is tension?
What forces act across the material in opposite directions?