Using spherical indentation to determine creep behavior with considering empirical friction coefficient
文献类型：期刊论文
| 作者 | Du R(杜柔)3; Song HX(宋恒旭)2,3; Liu XM(刘小明)2,3 ; Wei, Yueguang1
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| 刊名 | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 105页码:10 |
| 关键词 | Bayesian inference Spherical indentation Creep behavior Frictional contact |
| ISSN号 | 0997-7538 |
| DOI | 10.1016/j.euromechsol.2024.105276 |
| 通讯作者 | Liu, Xiaoming(xiaomingliu@imech.ac.cn) |
| 英文摘要 | Indentation testing is a common technique for characterizing the mechanical properties of materials. When it comes to assessing the yield behavior of metals, conical indentation is often favored due to its ability to induce significant plastic deformation at relatively shallow indentation depths. On the other hand, spherical indentation is typically chosen for evaluating metal creep behavior, as it helps minimize the influence of plastic deformation on creep measurements. In spherical indentation tests, the friction at the contact interface is particularly crucial, given the larger contact area and more pronounced slip zones. However, accurately determining the friction coefficient at the contact interface is a complex multi-scale challenge, with the exact coefficient varying based on specific testing conditions and surface treatments. Consequently, empirical friction coefficients are frequently employed, often without thorough justification. In this work, we proposed Bayesian inference method for obtaining the creep constitutive behavior of alloys through spherical indentation tests. Our model considers not only the complexity of creep law, but also the indentation friction, which is unable to consider in most spherical indentation tests with traditional treatment. By using experimental data of spherical indentation tests on 310S stainless steel and pure nickel alloy from literature, present study demonstrates the effectiveness of the Bayesian inference approach, with the inferred constitutive models exhibiting well agreement with uniaxial creep behavior. Furthermore, the method considers the friction coefficient as an extra factor in inferring creep constitutive behavior from indentation tests. |
| 分类号 | 二类/Q1 |
| WOS关键词 | PLASTIC PROPERTIES ; MODEL ; IDENTIFICATION ; PARAMETERS ; STRESS |
| 资助项目 | Innovation Promotion Association CAS[2018022] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001199771400001 |
| 资助机构 | Innovation Promotion Association CAS |
| 其他责任者 | Liu, Xiaoming |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94947]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Peking Univ, Coll Engn, Beijing 100190, Peoples R China 2.UCAS, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Du R,Song HX,Liu XM,et al. Using spherical indentation to determine creep behavior with considering empirical friction coefficient[J]. EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,2024,105:10. |
| APA | 杜柔,宋恒旭,刘小明,&Wei, Yueguang.(2024).Using spherical indentation to determine creep behavior with considering empirical friction coefficient.EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,105,10. |
| MLA | 杜柔,et al."Using spherical indentation to determine creep behavior with considering empirical friction coefficient".EUROPEAN JOURNAL OF MECHANICS A-SOLIDS 105(2024):10. |
入库方式： OAI收割
来源：力学研究所
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