Numerical study on creep-fatigue damage of titanium alloy pressure shell considering the effect of welding residual stresses

被引：1

作者：

Guo, Yuhao ^{[1
]}

Teng, Yun ^{[1
]}

Liu, Gang ^{[1
]}

Jiao, Tianzhen ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Struct Anal, Optimizat & CAE Software Ind Equipment, Dalian 116024, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2025年 / 209卷

基金：

中国国家自然科学基金;

关键词：

Creep-fatigue; Welding residual stresses; Life prediction; Pressure shell; Titanium alloy; LIFE; PERFORMANCE; TI-6AL-4V; MODEL; HULL;

D O I：

10.1016/j.tws.2025.112953

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Welding residual stress poses a significant threat to the creep-fatigue strength of titanium alloy pressure shells. This paper presents a numerical approach for assessing the evolution of creep-fatigue damage in pressure shells, incorporating the effects of welding residual stress. Two conditions are considered: the application of a heat source on the internal surface and a heat source on the external surface. Based on a heat treatment process that considers the creep stress relaxation effect, welding residual stress reduction is performed on conical-column pressure shell. Numerical simulations of creep-fatigue damage evolution in conical-column pressure shell considering the welding residual stresses were conducted. The results show that the interaction between residual stresses and working stresses significantly diminishes the creep-fatigue life of conical-column pressure shell. Different welding processes lead to noticeably different evolution behaviors of creep-fatigue damage. Considering the residual stresses from external surface welding, the phenomenon of multiple source cracks occurs, with secondary cracks potentially propagating axially. Heat treatment can improve the creep-fatigue life to a certain extent. The research results can guide the design and processing of titanium alloy pressure shells used in deep-sea vehicles.

引用

页数：16

共 60 条

[1] Direct measurements of the branching fractions for D0→K-e+ve and D0→π-e+ve and determinations of the form factors fK+(0) and fπ+(0) [J].

Ablikim, M ;

Bai, JZ ;

Ban, Y ;

Bian, JG ;

Cai, X ;

Chang, JF ;

Chen, HF ;

Chen, HS ;

Chen, HX ;

Chen, JC ;

Chen, J ;

Chen, ML ;

Chen, YB ;

Chi, SP ;

Chu, YP ;

Cui, XZ ;

Dai, HL ;

Dai, YS ;

Deng, ZY ;

Dong, LY ;

Du, SX ;

Du, ZZ ;

Fang, J ;

Fang, SS ;

Fu, CD ;

Fu, HY ;

Gao, CS ;

Gao, YN ;

Gong, MY ;

Gong, WX ;

Gu, SD ;

Guo, YN ;

Guo, YQ ;

He, KL ;

He, M ;

He, X ;

Heng, YK ;

Hu, HM ;

Hu, T ;

Huang, L ;

Huang, XP ;

Ji, XB ;

Jia, QY ;

Jiang, CH ;

Jiang, XS ;

Jin, DP ;

Jin, S ;

Jin, Y ;

Lai, YF .

PHYSICS LETTERS B, 2004, 597 (01) :39-46

[2]

[安飞鹏 An Feipeng], 2017, [焊接学报, Transactions of the China Welding Institution], V38, P96

[3] The performance of a prototype array of water Cherenkov detectors for the LHAASO project [J].

An, Q. ;

Bai, Y. X. ;

Bi, X. J. ;

Cao, Z. ;

Chang, J. F. ;

Chen, G. ;

Chen, M. J. ;

Chen, S. M. ;

Chen, S. Z. ;

Chen, T. L. ;

Chen, X. ;

Chen, Y. T. ;

Cui, S. W. ;

Dai, B. Z. ;

Du, Q. ;

Danzengluobu ;

Feng, C. F. ;

Feng, S. H. ;

Gao, B. ;

Gao, S. Q. ;

Ge, M. M. ;

Gu, M. H. ;

Hao, X. J. ;

He, H. H. ;

Hou, C. ;

Hu, H. B. ;

Hu, X. B. ;

Huang, J. ;

Huang, W. P. ;

Jia, H. Y. ;

Jiang, K. ;

Liu, J. ;

Liu, J. L. ;

Liu, J. S. ;

Liu, S. B. ;

Liu, Y. ;

Liu, Y. N. ;

Li, Q. J. ;

Li, C. ;

Li, F. ;

Li, H. C. ;

Li, X. R. ;

Lu, H. ;

Lv, H. K. ;

Mao, Y. J. ;

Ma, L. L. ;

Ma, X. H. ;

Shao, J. ;

Shao, M. ;

Sheng, X. D. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2013, 724 :12-19

[4]

Badea L, 2014, UNIV POLITEH BUCHAR, V76, P185

[5] Residual stresses effects on fatigue crack growth behavior of rib-to-deck double-sided welded joints in orthotropic steel decks [J].

Chen, Fanghuai ;

Zhang, Haiping ;

Li, Zhaochao ;

Luo, Yuan ;

Xiao, Xinhui ;

Liu, Yang .

ADVANCES IN STRUCTURAL ENGINEERING, 2024, 27 (01) :35-50

[6] Fatigue properties evaluation of fillet weld joints in full-scale steel marine structures [J].

Chen, Zhihao ;

Yu, Banglong ;

Wang, Ping ;

Qian, Hongliang .

OCEAN ENGINEERING, 2023, 270

[7]

China State Shipbuilding Industry Corporation, 2001, Calculation and design method of submarine structure

[8] Damage detection in thick plate structures based on ultrasonic SH wave [J].

Cui, Hongyu ;

Li, Ben ;

Zhou, Li Bin ;

Liu, Weiming .

SMART MATERIALS AND STRUCTURES, 2022, 31 (09)

[9] An Empirical Template Library for FGK and Late-type A Stars Using LAMOST Observed Spectra [J].

Du, Bing ;

Luo, A-Li ;

Zuo, F. ;

Bai, Z-R ;

Wang, R. ;

Song, Y-H ;

Hou, W. ;

Li, Y-B ;

Zhang, J-N ;

Guo, Y-X ;

Chen, J-J ;

Wang, M-X ;

Wang, Y-F ;

Kong, X. ;

Wu, K-F ;

Wang, X. ;

Wu, Y. ;

Hou, Y-H ;

Zhao, Y-H .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2019, 240 (01)

[10]

Dunham F.W., 1965, Marine Technol. SNAME News, V2, P299, DOI [10.5957/mt1.1965.2.3.299, DOI 10.5957/MT1.1965.2.3.299]

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