Preliminary Finite Element Analysis on Fixed Offshore Platform Joints

Authors

  • Jaronie M. Jani School of Science, Engineering and Technology, RMIT University Vietnam, District 7, Ho Chi Minh City, Vietnam Author https://orcid.org/0000-0002-7554-6564
  • Muhammad Akmal Azhari Mustafa Malaysian Institute of Marine Engineering Technology, Universiti Kuala Lumpur, Dataran Industri Teknologi Kejuruteraan Marin, Bandar Teknologi Maritim, Jalan Pantai Remis, 32200 Lumut, Perak, Malaysia Author https://orcid.org/0000-0001-5898-2615
  • Zulzamri Salleh Malaysian Institute of Marine Engineering Technology, Universiti Kuala Lumpur, Dataran Industri Teknologi Kejuruteraan Marin, Bandar Teknologi Maritim, Jalan Pantai Remis, 32200 Lumut, Perak, Malaysia Author https://orcid.org/0000-0001-5898-2615
  • Ahmad Zawawi Jamaluddin Malaysian Institute of Marine Engineering Technology, Universiti Kuala Lumpur, Dataran Industri Teknologi Kejuruteraan Marin, Bandar Teknologi Maritim, Jalan Pantai Remis, 32200 Lumut, Perak, Malaysia Author https://orcid.org/0000-0002-6828-798X
  • Atzrolnizam Abu Malaysian Institute of Marine Engineering Technology, Universiti Kuala Lumpur, Dataran Industri Teknologi Kejuruteraan Marin, Bandar Teknologi Maritim, Jalan Pantai Remis, 32200 Lumut, Perak, Malaysia Author https://orcid.org/0000-0003-0970-7929

Keywords:

FEA, CAD, SACS, Jacket Joints, Marine Engineering

Abstract

This study investigates the structural integrity of a fixed offshore platform using finite element analysis (FEA) to compare the stresses acting on the jacket joints to withstand gravity and environmental loads at two elevation levels with the equivalent static loads (ESLs) method. The three-dimensional CAD model is precisely designed with AutoCAD software and then analysed with FEA PTC Creo software for accurate numerical analysis and stress forecasting. Material selection follows API guidelines, considering necessary properties for the analysis such as Poisson's ratio, Young's modulus, and thermal expansion coefficient. The static stress analysis indicates that the structural steel joints exhibit elastic behaviour and are well below their yield and ultimate tensile strength limits. The displacement and strain values offer details about the platform's deformation characteristics. Comparisons between elevations above and below the sea level reveal variations in stress distribution and provide valuable insights for designing and optimising fixed offshore platforms to improve their reliability.

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Published

2025-12-03

Issue

Vol. 1 (2025)

Section

Articles