Prediction of thermomechanical fatigue life in RuT450 compacted graphite cast iron cylinder heads using the Neu/Sehitoglu model
文献类型：期刊论文
| 作者 | Jing, Guoxi1,2; Sun, Shuai1,2; Ma, Teng1,2; Li, Shubo1,2; Ma, Tian1,2; Wei, Junchao3; Pang, Jianchao4 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 156页码:27 |
| 关键词 | Compacted graphite cast iron Thermomechanical fatigue Multi -objective optimization Life prediction |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2023.107767 |
| 通讯作者 | Ma, Teng(mxc200523@sina.com) |
| 英文摘要 | The increase in engine power has resulted in a significant rise in both thermal and mechanical loads on cylinder heads, leading to the emergence of thermomechanical fatigue (TMF) as one of the significant issues. This paper proposed a parameter identification method for the Neu/Sehitoglu model, utilizing multi-objective optimization (MOO), and applied it to predict the TMF life of compacted graphite cast iron (CGI) material used in cylinder heads. The study assessed the TMF behavior of RuT450 material through various experiments, including tensile, low cycle fatigue (LCF), creep, TMF, and oxidation experiments. Employing the MOO, the unknown model parameters are estimated and optimized to predict the TMF life of RuT450 materials. Results demonstrated that over 95% of the predicted TMF life falls within twice the error band of experimental values. Furthermore, plastic strain amplitude, temperature, and strain rate significantly influenced the damage mechanism and life prediction. The TMF life under out-of-phase (OP) loading conditions was found to be smaller than that of in-phase (IP) loading. Notably, under out-of-phase thermomechanical fatigue (OP TMF), oxidation damage and fatigue damage together contributed to over 95% of the total damage in RuT450 materials. Moreover, variations in oxidation damage parameters had a considerable impact on the predicted life. This study might offer an effective method for determining Neu/Sehitoglu model parameters and establish material boundaries for TMF life assessment of cylinder heads. |
| 资助项目 | Foundation of National Defense Science and Technology Key Laboratory[6142212220304] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001125920400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Foundation of National Defense Science and Technology Key Laboratory |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, Teng |
| 作者单位 | 1.Hebei Univ Technol, Sch Mech Engn, Tianjin 300400, Peoples R China 2.Tianjin Key Lab Power Transmiss & Safety Technol N, Tianjin 300400, Peoples R China 3.China North Engine Res Inst, Natl Key Lab Diesel Engine Turbocharging Technol, Tianjin 300400, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jing, Guoxi,Sun, Shuai,Ma, Teng,et al. Prediction of thermomechanical fatigue life in RuT450 compacted graphite cast iron cylinder heads using the Neu/Sehitoglu model[J]. ENGINEERING FAILURE ANALYSIS,2024,156:27. |
| APA | Jing, Guoxi.,Sun, Shuai.,Ma, Teng.,Li, Shubo.,Ma, Tian.,...&Pang, Jianchao.(2024).Prediction of thermomechanical fatigue life in RuT450 compacted graphite cast iron cylinder heads using the Neu/Sehitoglu model.ENGINEERING FAILURE ANALYSIS,156,27. |
| MLA | Jing, Guoxi,et al."Prediction of thermomechanical fatigue life in RuT450 compacted graphite cast iron cylinder heads using the Neu/Sehitoglu model".ENGINEERING FAILURE ANALYSIS 156(2024):27. |
入库方式： OAI收割
来源：金属研究所
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