2025-09-22
Stress concentration also has many beneficial applications in daily life. A prime example is the tear notch on the packaging of the snacks we eat. These notches are typically serrated or triangular-shaped.
This design intentionally creates points of high stress concentration, allowing the package to be torn open with very little force. Conversely, you might have encountered packaging with rounded tear notches; these require more force to open because the rounded shape reduces the stress concentration effect.