000 02582nam a2200241 a 4500
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008 130301t2012 my da f m 000 0 eng d
020 _aTHE0005804(Local)
039 9 _a201905131450
_baida
_c201303040945
_dtraining
_y201303011104
_ztraining
040 _aUMP
090 _aTA418.74 K43 2012 rs Bc.
100 0 _aKhairul Anwar Ibrahim
245 1 0 _aThe effect of corrosion defects on burst pressure of pipelines /
_cKhairul Anwar Ibrahim
260 _aKuantan, Pahang :
_bUMP,
_c2012
300 _axviii, 87 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2012
504 _aBibliography: p. 84-85
520 3 _aThe predictions of pipeline burst pressure in the early stage are very importance in order to provide assessment for future inspection, repair and replacement activities. The failure of oil and gas pipelines contribute to economic implications and also constitute a serious hazards to the environment due to leakage. This thesis deals with the study on the effect of corrosion defect on the burst pressure of pipelines for API 5L X42 steel. The objectives for this project are to determine the burst pressure of corroded pipelines using Finite Element Analysis (FEA) and to compare the results with the available pipelines design code. This project implicates analysis of the API X42 steel by using MSC Patran 2008 r1 software as pre-processor and MSC Marc 2008 r1 software as a solver. A quarter of pipe was simulated by fully applying the symmetrical condition. The pipe is modeled in 3-D with outer diameter of 60 mm, wall thickness of 6 mm and different defect parameters. In this analysis, stress modified critical strain used as failure criterion to predict the failure of defective pipe. Result shows that the burst pressure decreases when both defect depth and length increases. The defect depth appear as a most influence parameter that affect the burst pressure. The circumferential extent has a less influence on the burst pressure. The results have been compared to available design codes for corroded pipelines such as ASME B31G, Modified ASME B31G and DNV RP F101. Comparison with available design codes have shown that FEA burst pressure gives higher values compare to codes. From the results, ASME B31G gives the lowest values than other codes.
650 0 _aCorrosion and anti-corrosives
999 _aVIRTUA40
_c3779
_d3785
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992