PSI - Issue 41

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 41 (2022) 274–281

2nd Mediterranean Conference on Fracture and Structural Integrity Numerical Analysis of Stiffened Offshore Pipe subjected to Environmental Loading: A Study Case using External Pressure Ilham Widiyanto a , Teguh Muttaqie b , Aditya Rio Prabowo a,* , Syamsul Hadi a , Indri Yaningsih a , Fajar Budi Laksono c i a,* a

a Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia b National Research and Innovation Agency (BRIN), Jakarta 10340, Indonesia c Department of Research and Development, DTECH Inovasi Indonesia Co. Ltd., Salatiga 50742, Indonesia c

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Abstract One of the main problems of cylindrical structures is their sensitivity to buckling. In this study, the buckling behavior of stiffened cylinders is investigated. Three types of cylindrical shell, namely, unstiffened-cylinder shell, stringer-stiffened cylinder shell, and ring-stiffened cylinder shell, were developed with a geometrical-variations. The numerical benchmark has been confirmed experimental works from published references. The Finite Element Analysis (FEA) was carried out using the ABAQUS. Imperfection in this study was considered. The load in this study uses external pressure. The cylinder shell diameter used in this simulation is 711.2 mm, 762 mm, and 812.8 mm. Failure in the cylinder is usually in the form of dents and can spread along with the cylinder shell, which can be referred to as cylinder propagating. The addition of the stiffener increases the buckling capacity of the cylinder shell. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. Keywords: Buckling, Cylinder Shell, FEA, Stiffener

* Corresponding author. Tel.: +62-271-163-632; fax: +62-271-163-632. E-mail address: aditya@ft.uns.ac.id

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MedFract2Guest Editors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the MedFract2Guest Editors. 10.1016/j.prostr.2022.05.032