The concept of stability is introduced in this lecture. The lecture builds up from the very concept of stability via the stability of linear and linearised systems all the way to the stability of nonlinear systems. It ends with introducing why potential energy is essential in the assessment of stability of structures.

• Concept of Stability (00:01:35)
• Types of Stability of Linear Systems (00:06:22)
• Stability of Nonlinear Linearised Systems (00:22:51)
• Liapunov Criteria of Stability (00:28:24)
• Importance of Potential Energy (00:33:54)
• Summary (00:38:17)

The lecture slides