localized necking

基本解释

The diffuse necking and localized necking in the tensile testing of sheet is proved through reseau strain analysis.
通過拉伸過程應變網格分析，騐証了薄板拉伸分散性失穩和集中性失穩的存在。
Plastic unstability induced by localized necking in sheet metal forming process and forming limit analysis are reviewed.
簡要地評述了金屬薄板成型工藝中侷部化頸縮引起的塑性失穩機制和成型極限分析的成果；
Analysis of contraction ratio of section and external shape of localized necking zone was proposed based non-local gradient plasticity theory.
採用非侷部的梯度塑性理論，得到了斷麪收縮率及頸縮區內部不同位置直逕的解析解。