What would be a good, reliable way to calculate the force or energy needed to break something? Is there an adequate formula for such, that factors as many variables as possible? -
![A force F is needed to break a copper wire having radius R. The force needed to break a copper wire - YouTube A force F is needed to break a copper wire having radius R. The force needed to break a copper wire - YouTube](https://i.ytimg.com/vi/WZA5EAyvrAM/maxresdefault.jpg)
A force F is needed to break a copper wire having radius R. The force needed to break a copper wire - YouTube
![If F is the breaking force of a wire, what will be the breaking force for (a) two parallel wires of - YouTube If F is the breaking force of a wire, what will be the breaking force for (a) two parallel wires of - YouTube](https://i.ytimg.com/vi/U3_DeUVMX4Q/maxresdefault.jpg)