摘要
介绍薄壁不锈钢管卡压式连接的原理,利用ANSYS有限元分析软件对DN 25 mm薄壁不锈钢管在48 MPa卡压压力下的卡压式连接进行建模分析,分析薄壁不锈钢管在卡压过程中等效应力、弹性应变、塑性应变分布情况,卡压结束后管接头与不锈钢管之间接触面的接触间隙分布情况。结果显示:接触面内壁处的应力、应变最大,接触间隙最小值为0或趋近于0,能形成良好的密封。
The principle of compression connection of thin-walled stainless steel pipe is introduced. The compression connection of DN 25 thin-walled stainless steel pipe under 48 MPa pressure is modeled and analyzed by ANSYS software. The distribution of equivalent stress, elastic strain and plastic strain during the compression connection of thin-walled stainless steel pipe as well as the distribution of contact gap of contact surface between pipe joint and stainless steel pipe after the compression connection are analyzed. The results showed that the stress and strain at the inner wall of contact surface are the largest, and the good sealing can be formed when the minimum contact gap is or is close to zero.
出处
《煤气与热力》
2016年第3期24-27,共4页
Gas & Heat
关键词
薄壁不锈钢管
卡压式连接
thin-walled stainless steel pipe
compression connection
stress
strain
sealing
ANSYS finite element analysis
