A simplified life estimation method for the spherical hull of deep manned submersibles
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- 作者：Fang Wanga ; Ke Wangb ; Weicheng Cuia ; wccui@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; wccui@shou.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Life estimation ; Spherical hull ; Deep sea manned submersible ; Fatigue ; Cyclic creep
- 刊名：Marine Structures
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：44
- 期：Complete
- 页码：159-170
- 全文大小：1157 K
文摘
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Ti–6Al–4V ELI has creep behavior in the room temperature and its dwell effect is important during life estimation.
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A simplified prediction model for constant amplitude cyclic creep loading is proposed for the pressure hull of submersibles made of Ti–6Al–4V ELI.
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The prediction method is validated by the modified crack growth rate model with parameters determined by large amounts of experimental data.