MT-1620 al.2002 Now consider the case of compressive loads and the instability they can cause. Consider only static instabilities (static loading as opposed to dynamic loading [ e.g., flutter) From Unified, defined instability via a system becomes unstable when a negative stiffness overcomes the natural stiffness of the structure (Physically, the more you push, it gives more and builds on Itselt Review some of the mathematical concepts. Limit initial discussions to columns Generally, there are two types of buckling/instability Bifurcation buckling Snap-through buckling Paul A Lagace @2001 Unit 16-3MIT - 16.20 Fall, 2002 Now consider the case of compressive loads and the instability they can cause. Consider only static instabilities (static loading as opposed to dynamic loading [e.g., flutter]) From Unified, defined instability via: “A system becomes unstable when a negative stiffness overcomes the natural stiffness of the structure.” (Physically, the more you push, it gives more and builds on itself) Review some of the mathematical concepts. Limit initial discussions to columns. Generally, there are two types of buckling/instability • Bifurcation buckling • Snap-through buckling Paul A. Lagace © 2001 Unit 16 - 3