Affiliation:
1. School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Abstract
This study explored the buckling performance of bi-segment pressure hulls under external pressure. We fabricated bi-segment pressure hulls from bi-segment cylindrical preforms by using free bulging. The cylindrical preforms had a nominal thickness of 0.95 mm, nominal radius of 51 mm, and nominal height of 242 mm. Six bi-segment pressure hulls were hydrostatically and externally pressurised into buckling. Experimental results revealed that the maximum buckling load of the bi-segment pressure hulls was increased by 36.75% compared with that of the bi-segment cylinders. In addition, we performed a nonlinear finite element analysis to determine the bulging and buckling modes of the hulls. We noted that the nonlinear analysis results exhibited good agreement with the experimental data.
Funder
National Natural Science Foundation of China
Excellent Youth Foundation of Jiangsu Scientific Committee
Six Talent Climax Foundation of Jiangsu
Subject
General Materials Science,Metals and Alloys
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