Plastic Deformation of Metal Continuous Capillary Tubes for Logging Analyzed by Using ABAQUS Software
Aiming at the effect of plastic deformation on the performance of metal continuous capillary tubes caused by bending behavior on the log winch drum,the finite element software ABAQUS was used to analyze the plastic deformation and fatigue life of metal continuous capillary tubes with different bending radius.The results show that the plastic deform-ation of the metal continuous capillary tube increases with the neutral layer.The equivalent plastic strain decreases from 3.5×10-2 to 1.46×10-2 with the increase of bending radius from 75 mm to 150 mm,and the service life gradually flattens out,the number of cycles increases from 25 000 to 398 107.
logging winchmetal continuous capillary tubefinite element analysisbending radiusplastic deformation
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