# Fracture energy equation?

1. Apr 7, 2010

### lewisd18

1. The problem statement, all variables and given/known data
i have been told i can use the equation potential energy/cross sectional area to work out fracture energy of ice after dropping weights on it till it breaks. is this true?

2. Relevant equations
fracture energy = potential energy/cross sectional area

3. The attempt at a solution
as above

2. Apr 7, 2010

### Cilabitaon

It seems rational: as the units you would be given are $$Jm^{-2}$$ which would imply the energy per unit area.