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Collapse of barreled frustums under external hydrostatic pressure
https://orcid.org/0000-0002-9721-9783
Abstract This study analyzed the collapse behaviors of barreled frustums under external hydrostatic pressure. The barreled frustums were fabricated from a conical preform through an internally free hydroforming technique. The conical preform had a nominal height of 200 mm, a nominal base radius of 140 mm, a nominal top radius of 110 mm, and a nominal wall thickness of 1 mm. Four nominally identical preforms were fabricated and hydroformed into barreled frustums of different barreling magnitudes. The barreled frustums were hydrostatically pressurized until collapse. The hydroforming and collapse behaviors were further explored through the nonlinear finite element method. The experimental and numerical results are presented in figures and tables.
Highlights Collapse behaviors of barreled frustums under external pressure were explored. Four barreled frustums were fabricated using internal hydroforming technique. Four barreled frustums were hydrostatically collapsed into single inward lobe. Tested collapse pressures of barreled frustums increased by 1.5–2.1 times. Numerical estimations agreed well with experimental observations.
Collapse of barreled frustums under external hydrostatic pressure
https://orcid.org/0000-0002-9721-9783
Abstract This study analyzed the collapse behaviors of barreled frustums under external hydrostatic pressure. The barreled frustums were fabricated from a conical preform through an internally free hydroforming technique. The conical preform had a nominal height of 200 mm, a nominal base radius of 140 mm, a nominal top radius of 110 mm, and a nominal wall thickness of 1 mm. Four nominally identical preforms were fabricated and hydroformed into barreled frustums of different barreling magnitudes. The barreled frustums were hydrostatically pressurized until collapse. The hydroforming and collapse behaviors were further explored through the nonlinear finite element method. The experimental and numerical results are presented in figures and tables.
Highlights Collapse behaviors of barreled frustums under external pressure were explored. Four barreled frustums were fabricated using internal hydroforming technique. Four barreled frustums were hydrostatically collapsed into single inward lobe. Tested collapse pressures of barreled frustums increased by 1.5–2.1 times. Numerical estimations agreed well with experimental observations.
Collapse of barreled frustums under external hydrostatic pressure
https://orcid.org/0000-0002-9721-9783
Abstract This study analyzed the collapse behaviors of barreled frustums under external hydrostatic pressure. The barreled frustums were fabricated from a conical preform through an internally free hydroforming technique. The conical preform had a nominal height of 200 mm, a nominal base radius of 140 mm, a nominal top radius of 110 mm, and a nominal wall thickness of 1 mm. Four nominally identical preforms were fabricated and hydroformed into barreled frustums of different barreling magnitudes. The barreled frustums were hydrostatically pressurized until collapse. The hydroforming and collapse behaviors were further explored through the nonlinear finite element method. The experimental and numerical results are presented in figures and tables.
Highlights Collapse behaviors of barreled frustums under external pressure were explored. Four barreled frustums were fabricated using internal hydroforming technique. Four barreled frustums were hydrostatically collapsed into single inward lobe. Tested collapse pressures of barreled frustums increased by 1.5–2.1 times. Numerical estimations agreed well with experimental observations.
Collapse of barreled frustums under external hydrostatic pressure
Zhang, Jian (author) / Liu, Chang (author) / Tang, Wenxian (author) / Wang, Fang (author) / Zhao, Xilu (author) / Zhang, Jinfei (author) / Tang, Leiping (author)
Marine Structures ; 84
2022-03-20
Article (Journal)
Electronic Resource
English
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