Why objects break
We tend to think an object breaks by bad luck. In reality, it's almost always one precise point giving way.
An identifiable weak point in almost every case
A part almost never breaks evenly across its whole surface: it's a precise spot, often a concentration of mechanical stress or an ill-suited material, that gives way first. Spotting this precise point is the first step before any durable repair.
Why the same spot often breaks more than once
If this weak point isn't corrected during repair, the same failure often reoccurs after a certain period of use. A repair that accounts for this original fragility, by slightly reinforcing the affected area, is generally more durable than an identical repair.
Frequently asked questions
Does a broken part always break in the same spot?
Very often, yes, since this spot usually corresponds to an identifiable concentration of mechanical stress.