Calculating Stress in Joules: My Experience

[slingboi]

I have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm.

 

[Studiot]

I have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm

How do you work this out?


Strain is length/length ie dimensionless.

Stress is force/area. ie force/m². Multiply this by volume (m³) and you get force time distance ie work (energy).

It does work out

 

[slingboi]

Ohhh, thanks! i get it now!