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New Strain-based Assessment Research Now Available Online

Tue, 21 February, 2023

A recent research paper co-authored by TWI finite element analyst, Longjie Wang, in collaboration with Bingchuan Yan (PipeChina North Pipeline Company), Guiyi Wu (Centre of Excellence for Advanced Materials) and Yanhui Zhang (PipeChina Science and Technology Institute) has just been published. The paper is now available to read in full online in the International Journal of Pressure Vessels and Piping (IJPVP).

The paper focuses on the strain-based fracture assessment of pipeline girth welds in accordance with DNVGL-RP-F108. The study determined the flaw tolerances of the girth welds of an onshore X70 spiral welded pipeline. The study also investigated the effects of factors including weld strength mismatch, parent pipe tensile curves, internal pressure, fracture toughness, residual stresses and misalignment. Finite element analysis (FEA) was employed to verify the accuracy of the methods in DNVGL-RP-F108 and valuable insights were provided.

TWI has been a trusted industry partner of the oil and gas sector for over 50 years with more than 500 industry members from the sector. TWI provides consultancy to support industry’s transition to alternative energy whilst continuing to ensure the integrity of existing assets.

With a membership base that includes upstream and downstream businesses, TWI has developed extensive expertise in structural integrity, materials selection, corrosion, non-destructive testing, and welding engineering to meet the specific needs of the oil and gas industry.

The recent research paper publication is a testament to TWI's continued commitment to providing research and consultancy to the oil and gas industry.

You can read the entire article online now without sign-up, registration or fees by following this link, which will remain active until 8 April 2023.

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