Dieless bulging and nonlinear buckling of longan-shaped pressure hull

Rui He; Jian Zhang; Sakdirat Kaewunruen; Ming Zhan; Ping Liu

doi:10.1016/j.ijnaoe.2023.100548

Dieless bulging and nonlinear buckling of longan-shaped pressure hull

Rui He, Jian Zhang^*, Sakdirat Kaewunruen, Ming Zhan, Ping Liu

^*Corresponding author for this work

Civil Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

In this study, the dieless bulging and nonlinear buckling behaviours of a stainless longan-shaped pressure hull were investigated. According to the Cassini oval equation, the longan shape has a shape index of 0.1. The lengths of the major and minor axes of the designed longan-shaped pressure hull were approximately 400 and 396 mm, respectively. The wall thickness of this pressure hull was 1 mm. The Huber–von Mises stress and first yielding load of the designed longan-shaped shell and its inscribed polyhedral preform were investigated analytically and experimentally. Moreover, the dieless bulging of the designed longan-shaped pressure hull was investigated numerically and experimentally by using the nonlinear finite element method and a hydrostatic test, respectively. The analytical, experimental, and numerical results exhibited good agreement with each other.

Original language	English
Article number	100548
Number of pages	18
Journal	International Journal of Naval Architecture and Ocean Engineering
Volume	15
DOIs	https://doi.org/10.1016/j.ijnaoe.2023.100548
Publication status	Published - 28 Aug 2023

Bibliographical note

Acknowledgement:
This research was supported by the National Natural Science Foundation of China, China (grant number: 52071160).

Keywords

Longan-shaped geometry
Pressure hull
Dieless bulging
Buckling behavior

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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title = "Dieless bulging and nonlinear buckling of longan-shaped pressure hull",

abstract = "In this study, the dieless bulging and nonlinear buckling behaviours of a stainless longan-shaped pressure hull were investigated. According to the Cassini oval equation, the longan shape has a shape index of 0.1. The lengths of the major and minor axes of the designed longan-shaped pressure hull were approximately 400 and 396 mm, respectively. The wall thickness of this pressure hull was 1 mm. The Huber–von Mises stress and first yielding load of the designed longan-shaped shell and its inscribed polyhedral preform were investigated analytically and experimentally. Moreover, the dieless bulging of the designed longan-shaped pressure hull was investigated numerically and experimentally by using the nonlinear finite element method and a hydrostatic test, respectively. The analytical, experimental, and numerical results exhibited good agreement with each other.",

keywords = "Longan-shaped geometry, Pressure hull, Dieless bulging, Buckling behavior",

author = "Rui He and Jian Zhang and Sakdirat Kaewunruen and Ming Zhan and Ping Liu",

note = "Acknowledgement: This research was supported by the National Natural Science Foundation of China, China (grant number: 52071160).",

year = "2023",

month = aug,

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doi = "10.1016/j.ijnaoe.2023.100548",

language = "English",

volume = "15",

journal = "International Journal of Naval Architecture and Ocean Engineering",

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TY - JOUR

T1 - Dieless bulging and nonlinear buckling of longan-shaped pressure hull

AU - He, Rui

AU - Zhang, Jian

AU - Kaewunruen, Sakdirat

AU - Zhan, Ming

AU - Liu, Ping

N1 - Acknowledgement: This research was supported by the National Natural Science Foundation of China, China (grant number: 52071160).

PY - 2023/8/28

Y1 - 2023/8/28

N2 - In this study, the dieless bulging and nonlinear buckling behaviours of a stainless longan-shaped pressure hull were investigated. According to the Cassini oval equation, the longan shape has a shape index of 0.1. The lengths of the major and minor axes of the designed longan-shaped pressure hull were approximately 400 and 396 mm, respectively. The wall thickness of this pressure hull was 1 mm. The Huber–von Mises stress and first yielding load of the designed longan-shaped shell and its inscribed polyhedral preform were investigated analytically and experimentally. Moreover, the dieless bulging of the designed longan-shaped pressure hull was investigated numerically and experimentally by using the nonlinear finite element method and a hydrostatic test, respectively. The analytical, experimental, and numerical results exhibited good agreement with each other.

AB - In this study, the dieless bulging and nonlinear buckling behaviours of a stainless longan-shaped pressure hull were investigated. According to the Cassini oval equation, the longan shape has a shape index of 0.1. The lengths of the major and minor axes of the designed longan-shaped pressure hull were approximately 400 and 396 mm, respectively. The wall thickness of this pressure hull was 1 mm. The Huber–von Mises stress and first yielding load of the designed longan-shaped shell and its inscribed polyhedral preform were investigated analytically and experimentally. Moreover, the dieless bulging of the designed longan-shaped pressure hull was investigated numerically and experimentally by using the nonlinear finite element method and a hydrostatic test, respectively. The analytical, experimental, and numerical results exhibited good agreement with each other.

KW - Longan-shaped geometry

KW - Pressure hull

KW - Dieless bulging

KW - Buckling behavior

U2 - 10.1016/j.ijnaoe.2023.100548

DO - 10.1016/j.ijnaoe.2023.100548

M3 - Article

SN - 2092-6782

VL - 15

JO - International Journal of Naval Architecture and Ocean Engineering

JF - International Journal of Naval Architecture and Ocean Engineering

M1 - 100548

ER -

Dieless bulging and nonlinear buckling of longan-shaped pressure hull

Abstract

Bibliographical note

Keywords

UN SDGs

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