Hello I need to know the equation for breaking point of material... The point where all stress is had and the material starts to deform or break. I've looked all over and cant find it anywhere, I heard that its something like Strength x Area = Force needed to break, but I cant see it being this simple. The question is: An aluminium alloy has a tensile strength of 200MPa. What force is needed to break a bar with a cross sectional area 0f 250mm^2 I know this is very simple and I can do a lot harder math than this but resources on this are few.