| 钢制压力容器低周疲劳失效成因分析 |
| |
| 引用本文： | 贾泉.钢制压力容器低周疲劳失效成因分析[J].张家口职业技术学院学报,2011,24(1):48-49. |
| |
| 作者姓名： | 贾泉 |
| |
| 作者单位： | 张家口大唐机械制造有限公司,河北张家口,075000 |
| |
| 摘 要： | 钢制压力容器的疲劳是一种高应力、低循环疲劳,总是在局部应力集中区域内发生,该区域内的峰值应力甚至超过了材料的屈服极限,在其反复作用下产生疲劳源,随着交变应力的循环,裂纹不断扩展最终导致容器的疲劳断裂。
|
| 关 键 词： | 低周疲劳 交变应力 应力集中 峰值应力 |
Failure Analysis of Low-cycle Fatigue on Steel Pressure Vessels |
| |
| JIA Quan.Failure Analysis of Low-cycle Fatigue on Steel Pressure Vessels[J].Journal of Zhangjiakou Vocational College of Technology,2011,24(1):48-49. |
| |
| Authors: | JIA Quan |
| |
| Institution: | JIA Quan(Zhangjiakou Datang Machinery Manufacturing Co.,Ltd,Zhangjiakou,Hebei 075000) |
| |
| Abstract: | Fatigue of steel pressure vessels,which is in low-cycle situations,often occurs when the material is subjected to repeated loading and unloading.And if the maximum peak stress values are above the yield stress limit of steel,microscopic cracks will begin to form at the surface.Eventually a crack will reach a critical size,and the structure will fracture due to it. |
| |
| Keywords: | low-cycle fatigue cycle stress stress concentration peak stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
