| 带缺陷试样的稳定性与颈缩解析 |
| |
| 引用本文： | 索忠林,刘颖.带缺陷试样的稳定性与颈缩解析[J].长春大学学报,2006(8). |
| |
| 作者姓名： | 索忠林 刘颖 |
| |
| 作者单位： | 空军航空大学基础部 吉林长春130022(索忠林)，吉林大学超塑性与塑性研究所 吉林长春130025(刘颖) |
| |
| 基金项目： | 国家自然科学基金资助项目(50075035) |
| |
| 摘 要： | 在实验中由于各种原因理想的试样很难得到,试样总会带有各种不同程度的缺陷。如实验前由于钳子、卡具、意外碰撞、弯曲等造成的破坏。这种缺陷在变形过程中对于颈缩的产生、发展变化及拉伸变形的稳定性会产生影响。研究讨论缺陷对于拉伸变形的颈缩、稳定性的作用,这有利于正确理解和掌握超塑性拉伸变形过程。
|
| 关 键 词： | 机械缺陷 几何缺陷 理想试样 失稳准则 |
Stability and necking analysis of the sample with defects |
| |
| SUO Zhong-lin,LIU Ying.Stability and necking analysis of the sample with defects[J].Journal of Changchun University,2006(8). |
| |
| Authors: | SUO Zhong-lin LIU Ying |
| |
| Institution: | SUO Zhong-lin~1,LIU Ying~2 |
| |
| Abstract: | It is very hard to get ideal sample due to different factors during test,so each sample has different defects inevitability,such as damage made by cramp,clamp apparatus,accidental impact and bending and so on.These defects will affect the formation and developing of necking during deforming and the stability of deformation.So this paper will discuss the effect of defects on necking and stability of tensile deformation,which will help up to understand and master superplastic tensile deformation correctly. |
| |
| Keywords: | mechanical defect geometric defect ideal sample instability criterion |
| 本文献已被 CNKI 等数据库收录！ |
