http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
M. Zubairuddin,S. K. Albert,S. Mahadevan,M. Vasudevan,V. Chaudhari,V. K. Suri 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.12
In this paper, investigation of residual stress and distortion induced in 3 mm thick Modified 9Cr-1Mo steel plates during GTA weldingis carried out. SYSWELD software is used for the thermo-mechanical analysis. A 3D meshed model is created for the simulation anddouble ellipsoidal heat source distribution is used for the thermal analysis. Thermal cycles predicted near the fusion zone are comparedwith experimentally measured thermal cycles using thermocouples. Predicted residual stress profile across the fusion zone is comparedwith the measured profile using X-ray diffraction method. There is a good agreement between measured and predicted thermal cyclesand residual stress profile. Distortion of the weld joint is measured using vertical electronic height gauge. Finite element analysis of distortionof the weld joint is carried out by applying both large and small distortion theories. Comparison of experimental and numericalresults showed better accuracy if large distortion theory is applied.