How the Earth defines stress:
An earthquake is caused by the shaking of the ground due to an abrupt shift of rock along a fracture in the Earth, called a fault. Within seconds, an earthquake releases stress that has slowly accumulated within the rock, sometimes over hundreds of years. Most earthquakes are caused by slow movements deep in the Earth that push against the Earth’s brittle, relatively thin outer layer, causing the rocks to break suddenly. To see more…
How Engineers define Stress:
The concept of stress originated from the study of strength and failure of solids. The stress field is the distribution of internal “tractions” that balance a given set of external tractions and body forces. To see more…
Can you test your Stress?