Mechanical testing on welded pipes
Welding plays an indispensable role in many industries especially the pipe welding and welded joint has become one of the most important joining methods available nowadays. Hence, it is essential to understand the mechanical properties of the welded joint for pipe so that the welding pipe can be...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, UNIMAS
2010
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/4587/ http://ir.unimas.my/id/eprint/4587/1/Mechanical%20Testing%20on%20Welded%20Pipes%20%2824pgs%29.pdf http://ir.unimas.my/id/eprint/4587/8/Yeo%20Cheng%20Chuan%20%20%28fulltext%29.pdf |
| Summary: | Welding plays an indispensable role in many industries especially the pipe welding
and welded joint has become one of the most important joining methods available
nowadays. Hence, it is essential to understand the mechanical properties of the welded
joint for pipe so that the welding pipe can be applied effectively in various kinds of
industries. The aim of this project is to investigate the strength of the welded pipe which
is determined by mechanical testing based on ASME Standard Code. Tension test and
three point bending test are conducted to characterize and gain greater understanding of
welded joint mechanical properties and quality. The results of the welded pipe and base
metal pipe are then interpreted and compared in terms of strength, strain, and maximum
load before failure of test specimen to differentiate and investigate the effect of base
metal pipe after being welded. Results and analysis indicate that the welded pipe has
slightly higher strength than the base metal pipe in both of the mechanical tests. The
base metal pipe shows a slightly increase of stiffness after being welded but has been
reduced in ductility. Overall, based on the results, it shows that the welded joint is as
strong as, or even stronger than the base metal pipe and has similar mechanical behavior
with base metal pipe. The experiment also shows that the improper preparation of
welded joint will weaken the strength of the welded pipe and will cause the failure for
passing the mechanical testing. |
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