localized necking

基本解释

The diffuse necking and localized necking in the tensile testing of sheet is proved through reseau strain analysis.
通过拉伸过程应变网格分析，验证了薄板拉伸分散性失稳和集中性失稳的存在。
Plastic unstability induced by localized necking in sheet metal forming process and forming limit analysis are reviewed.
简要地评述了金属薄板成型工艺中局部化颈缩引起的塑性失稳机制和成型极限分析的成果；
Analysis of contraction ratio of section and external shape of localized necking zone was proposed based non-local gradient plasticity theory.
采用非局部的梯度塑性理论，得到了断面收缩率及颈缩区内部不同位置直径的解析解。