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Stress Analysis of Riser using Finite Element Method (FEM)

Sabrumdin, Nor Naillriya (2009) Stress Analysis of Riser using Finite Element Method (FEM). Universiti Teknologi Petronas. (Unpublished)

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Abstract

This report basically discusses the preliminary research done and basic understanding of the chosen topic, which is Stress Analysis of Riser using Finite Element Method. The objective of the project is to perform static stress analyses for selected load cases on riser. There are two types of load which acting along the riser structure, environmental and functional load. Environmental load is due to wave and current of the sea water whereas functional load is due to te111perature and pressure of oil/gas carried by tile riser. These loads can cause global buckling and failure to the riser. Thus, the study is about to determine the generated stress along riser due to these loads to ensure that the detailed design of riser safe for operation. Static stress analysis is the core of the riser design. The challenge in this project is to understand the stress generated whe11 load is applied 011 riser ll!ld also to model the real structure of riser itself. Basically, the scopes of study are about effect of environmental and functional load on rigid riser and Finite Element analysis using ANSYS. Several theories have been adapted to complete the study. The theories include One-seventh power law, Morrison Equation and stresses equation. Methodology of this proj(.lct started with project identification, followed by data gathering and calculation of hydrodynamic forces. After calculation is done, ANSYS is used to conduct modeling. While modeling, steel X65 and two element types are chosen to model the riser. Based on the simulation result, comparison will be done between generated stress from ANSYS and calculated allowable stress. The acceptance criteria for stress analysis based on PTS 20.214, generated stress must less than allowable stress.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Metals alloys - Phase transformation
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 22 Oct 2013 09:20
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/8937

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