焊管
銲管
한관
WELDED PIPE AND TUBE
2009年
7期
22-25
,共4页
油气管道%补焊%弹塑性有限元分析%极限缺陷深度
油氣管道%補銲%彈塑性有限元分析%極限缺陷深度
유기관도%보한%탄소성유한원분석%겁한결함심도
oil and gas pipeline%repair welding%elasto-plastic FEM analysis%limited depth of flaws
用三维弹塑性有限元法对油气管道补焊强度进行了模拟分析和计算,并将计算结果与实际水压爆破试验结果进行了比较,两者差值小于10%.模拟计算了补疤焊缝U形和类裂纹两类缺陷深度对泄漏压力的影响,最后得到了该管道两类缺陷的极限深度.
用三維彈塑性有限元法對油氣管道補銲彊度進行瞭模擬分析和計算,併將計算結果與實際水壓爆破試驗結果進行瞭比較,兩者差值小于10%.模擬計算瞭補疤銲縫U形和類裂紋兩類缺陷深度對洩漏壓力的影響,最後得到瞭該管道兩類缺陷的極限深度.
용삼유탄소성유한원법대유기관도보한강도진행료모의분석화계산,병장계산결과여실제수압폭파시험결과진행료비교,량자차치소우10%.모의계산료보파한봉U형화류렬문량류결함심도대설루압력적영향,최후득도료해관도량류결함적겁한심도.
The repair welding strength of oil pipeline was calculated in 3D elastic plasticity finite element analysis method.The calculated results and the actual hydraulic test results were compared,the difference between the two is less 10%.Effect on leak pressure of weld scars U-shaped and crack-liked flaws depth was simulated and calculated.Finally,the limited depth of two type flaws was received.
