结构稳定性概念的引入和阐明

Introduction and Explanation of the Concepts of Structure Stability

本文讨论了工科大学力学专业基础课中结构稳定性的概念和引入,阐述了结构失稳的两种截然不同的形态:分枝点失稳和极值点失稳.最后讨论了结构稳定问题和结构强度问题在概念上和分析方法上的区别,可供材料力学和结构力学教学中参考.

The paper discusses the concepts of structure stability and their introduction to mechanics courses in engineering university, and explains two different kinds of instability: bifurcated point instability and maximum point instability.The differences between structure stability problems and strength problems are also discussed.All this can be helpful in the teaching of Material Mechanics and Structure Mechanics.