CAJ | 학술논문

利用有限单元法对拉伸条件下, 承载面角度分别为 30° , 10° , 3° , 0°和-3°时 P110 钢Φ139.7 mm×9.17 mm特殊螺纹接头的连接强度进行了数值模拟. 模拟结果显示, 当承载面角度为30°时, 随着拉伸载荷的增大, 接头失效形式表现为滑脱; 承载面角度分别为10° , 3° , 0°和-3°时,随拉伸载荷的增大, 接头失效形式表现为螺纹断裂. 研究结果表明, 在拉伸载荷下, 当螺纹承载面角度越大时, 接头滑脱趋势越明显; 当螺纹承载面角度越小时, 则接头断裂趋势越明显.
이용유한단원법대랍신조건하, 승재면각도분별위 30° , 10° , 3° , 0°화-3°시 P110 강Φ139.7 mm×9.17 mm특수라문접두적련접강도진행료수치모의. 모의결과현시, 당승재면각도위30°시, 수착랍신재하적증대, 접두실효형식표현위활탈; 승재면각도분별위10° , 3° , 0°화-3°시,수랍신재하적증대, 접두실효형식표현위라문단렬. 연구결과표명, 재랍신재하하, 당라문승재면각도월대시, 접두활탈추세월명현; 당라문승재면각도월소시, 칙접두단렬추세월명현.
Under the tension condition, the tensile strength of premium connection of P110 steel Φ139.7 mm×9.17 mm with 30°,10°,3°,0° and -3° loading flank angle were analyzed by using the finite element analysis(FEA)software, respectively. The result showed that the failure of premium connection with the 30° loading flank angle is jump-out with the increase of the tensile load;the failure of premium connection with 10°,3°,0° and-3° loading flank angle are all fracture. So the bigger the loading flank angle is, the more obvious the jump-out trend is;the smaller loading flank angle is, the more obvious the fracture is.