Multiaxial fatigue life prediction by equivalent energy-based critical plane damage parameter under variable amplitude loading
文献类型：期刊论文
| 作者 | Tao ZQ(陶志强) ; Qian GA(钱桂安); Sun JY(孙经雨); Zhang ZL; Hong YS(洪友士)
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| 刊名 | FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
 |
| 出版日期 | 2022-09-14 |
| ISSN号 | 8756-758X |
| 关键词 | critical plane damage parameter life prediction multiaxial fatigue variable amplitude loading |
| DOI | 10.1111/ffe.13837 |
| 英文摘要 | A new path-independent multiaxial fatigue damage parameter sigma n*$$ {\sigma}_n<^>{\ast } $$, which is defined as the largest normal stress range between adjacent turning points of the maximum shear stress on the critical plane, is proposed to describe multiaxial fatigue damage. By combining the maximum normal stress sigma n,max$$ {\sigma}_{n,\max } $$ or the largest normal stress range sigma n*$$ {\sigma}_n<^>{\ast } $$ with the maximum shear stress range on the critical plane, two axial equivalent stress modification factors, keq sigma$$ {k}_{\mathrm{eq}}<^>{\sigma } $$ and keq sigma*$$ {k}_{\mathrm{eq}}<^>{\sigma \ast } $$, are proposed, which can account for the influence of non-proportional additional hardening. The sensitivity of the proposed axial equivalent stress modification factors to multiaxial variable amplitude loading sequences is analyzed. Furthermore, two new multiaxial fatigue damage models based on the axial equivalent stress modification factors are proposed to estimate fatigue life. The applicability of the presented methodology was verified by the experimental data of En15R steel and 7050-T7451 aluminum alloy, and the results showed that the predicted fatigue lifetimes agree well with the experimental data under variable amplitude multiaxial loading. |
| 学科主题 | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| 分类号 | 二类 |
| 语种 | 英语 |
| WOS记录号 | WOS:000853704400001 |
| 资助机构 | Academic Research Projects of Beijing Union University [ZK80202101] ; National Natural Science Foundation of China [12002186, 11932020, 11872364, 51905334] ; Shanghai Sailing Program [19YF1418600] |
| 其他责任者 | Hong, YS (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90163]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Shanghai Maritime Univ, Logist Engn Coll, Shanghai, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 4.Sun, Jingyu 5.Qian, Guian 6.[Tao, Zhi-Qiang 7.Beijing Union Univ, Coll Robot, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao ZQ,Qian GA,Sun JY,et al. Multiaxial fatigue life prediction by equivalent energy-based critical plane damage parameter under variable amplitude loading[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2022. |
| APA | 陶志强,钱桂安,孙经雨,Zhang ZL,&洪友士.(2022).Multiaxial fatigue life prediction by equivalent energy-based critical plane damage parameter under variable amplitude loading.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES. |
| MLA | 陶志强,et al."Multiaxial fatigue life prediction by equivalent energy-based critical plane damage parameter under variable amplitude loading".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2022). |
入库方式： OAI收割
来源：力学研究所
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