DESIGN AND STRUCTURAL RESPONSE ANALYSIS OF SUBSEA PIPELINES CROSSING ACTIVE TECTONIC FAULT IN ARAFURA SEA
The direction of fault displacement exerts tensile or compressive forces on the subsea pipeline located above it. The pipeline's ability to deform within its plastic range due to the induced stress can prevent damage to the pipeline crossing the fault. However, the strain value must be limited...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/85663 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The direction of fault displacement exerts tensile or compressive forces on the subsea pipeline located above it. The pipeline's ability to deform within its plastic range due to the induced stress can prevent damage to the pipeline crossing the fault. However, the strain value must be limited according to local buckling criteria. In this thesis, an analysis of the structural response of a subsea pipeline crossing a fault with specific displacement and angle values was conducted using the finite element method. The impact of fault types and buckle arrestor density on the pipeline's stress and strain values was also examined. The research findings indicate that a normal fault does not significantly affect the pipeline's stress and strain values, whereas a reverse fault, which is dominated by compressive forces, induces compressive strain on the pipeline that is high enough to cause local buckling. Additionally, the increase in buckle arrestors along a single line pipe also influences the distribution of stress and strain, where a higher density of buckle arrestors within a single line pipe results in greater localized stress and strain values.
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