摘要
在变壁厚椭圆截面弯管应力分析的基础上,运用三剪统一屈服准则,对承受内压作用的弯管进行了极限载荷分析,推导出考虑弯管截面壁厚变化和弯管椭圆度的变壁厚椭圆弯管的塑性极限压力统一解析解。弯管的极限载荷随着弯管壁厚和弯管椭圆度的不同而变化。
Based on the bending stress analysis of the elliptical cross section of an elbow pipe with wall thickness variation, we use the triple-shear yield criterion to derive the plastic limit load formula that considers the variation of the wall thickness of the elbow pipe under external pressure and the bending elliptical variation. The plastic limit load of the elbow pipe changes with the wall thickness and ovality of the elbow pipe.
出处
《机械科学与技术》
CSCD
北大核心
2013年第12期1841-1845,共5页
Mechanical Science and Technology for Aerospace Engineering
关键词
塑性极限载荷
统一解析解
弯管
三剪统一屈服准则
calculations
elastoplasticity
load limits
pressure vessels
pressure
stress analysis
yield stress
plastic limit load
elbow pipe
triple-shear unified yield criterion
