STABILIYOF COMPRESSED COLUMN 2). Stable equilibrium
11 2). Stable equilibrium
定 2.稳定平衡
12 2. 稳定平衡
STABILIYOF COMPRESSED COLUMN 3). Stable and instable equilibrium 13
13 3). Stable and instable equilibrium
定 3.稳定平衡和不稳定平衡
14 3. 稳定平衡和不稳定平衡
STABILIYOF COMPRESSED COLUMN 2 Loss of stability and the critical pressure of the column 1).Ideal compressive columns: the material is absolutely ideal; the axis is absolutely straight; the compressive force is absolutely along the axis of the column 2). Stable and instable equilibrium of compressive columns: Stable equilibrium Instable equilibrium
15 2、Loss of stability and the critical pressure of the column： 1).Ideal compressive columns：the material is absolutely ideal；the axis is absolutely straight；the compressive force is absolutely along the axis of the column. 2). Stable and instable equilibrium of compressive columns： Instable equilibrium Stable equilibrium