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All Journal Jurnal Teknik Sipil Civil Engineering Dimension
Ricky Lukman Tawekal, Ricky Lukman
Staf Pengajar, PST Kelautan, Fakultas Teknik Sipil dan Lingkungan-ITB.
Civil Engineering, Building, Construction & Architecture

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Impact of Anchor Drag on Subsea Pipeline Integrity: Numerical Study on Crack Propagation and Leakage Arianta, Arianta; Tawekal, Ricky Lukman; Santoso, Jason Filius; Ilman, Eko Charnius
Civil Engineering Dimension Vol. 28 No. 1 (2026): MARCH 2026
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.28.1.1-10

Abstract

Anchor drag incidents impacting subsea pipelines lead to structural failure, driven primarily by crack propagation under mechanical stress. This study employs finite element modelling (FEM) and the extended finite element method (XFEM) to evaluate how initial crack dimensions (depth: 4–6 mm; length: 20–60 mm) affect pipeline integrity. Results indicate that pipelines with smaller initial cracks (4 mm depth) resist leakage until an anchor drag distance of 67.839 m, whereas larger cracks (6 mm depth) fail at 33.389 m, emphasizing crack depth as the critical factor in reducing structural resilience. Crack propagation follows a triphasic pattern: slow initiation, rapid acceleration at 25–35 m drag distance, and deceleration near the pipe wall. Larger cracks propagate faster, with 6 mm depth cracks reaching critical failure earlier than smaller defects.
Co-Authors Aria R Baskara Aria R Baskara, Aria R Arianta, Arianta Fitriany Fitriany Fitriany Fitriany, Fitriany Fitrotul Laeli Hidayaturrohmah Hidayaturrohmah, Fitrotul Laeli Ilman, Eko Charnius M. Taufan Tukuboya M. Taufan Tukuboya, M. Taufan Ricky Adriadi Ricky Adriadi, Ricky Rony Heriana Rony Heriana, Rony Santoso, Jason Filius