圆环横向压缩时内凹分析

Analysis on Instability of Right Plastic Ring under Lateral Compression

对线性强化圆环横向压扁进行了研究,探讨了接触面内凹产生的机理,提出了内凹产生的判据。将理论结果与实验结果进行了比较。

The deformation of rigidplastic ring under lateral compression is studied in this paper .The ring is linear hardening one. When laterally compressed by rigid plates ,instability occurs. The cause of instability is discussed and the critical condition is given.