An alternative numerical method for calculating C* parameter under mode I loading utilizing rate-dependent energy release rate
文献类型：期刊论文
| 作者 | Du XH; Dai YW; Han Q; Liu YH; Cao P; Qian GA(钱桂安) ; Berto F
|
| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 109页码:102737 |
| ISSN号 | 0167-8442 |
| 关键词 | Power-law creep CRACK-TIP FIELDS Energy release rate HIGHER-ORDER Virtual crack closure technique (VCCT) GROWTH C*-integral BEHAVIOR Equivalent domain integral NOTCHES STRESS JOINTS |
| DOI | 10.1016/j.tafmec.2020.102737 |
| 英文摘要 | In a fracture analysis at elevated temperature, the determination of fracture parameter C* under steady-state creep is a crucial point. This paper proposes a rate-dependent energy release rate 6, by analogy with the definition of creep fracture parameter C* under steady-state creep. The relationship between <(G)over dot> and C* is deduced after a brief review of the definitions of parameters in fracture mechanics. Aimed at calculating <(G)over dot> and C*, a finite element formulation based on the virtual crack closure technique (VCCT) is established, which is called the extended VCCT in this paper. The numerical algorithm for this proposed formulation is presented and implemented into commercial finite element codes. The results obtained by the proposed numerical method are compared with those by finite element contour integral method and from different engineering estimation methods for SENT, MT and CT specimens. Good agreements of the C* results show that the extended VCCT is a reliable and efficient numerical method to calculate C* under steady-state creep. |
| 分类号 | 二类/Q1 |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000580995300051 |
| 资助机构 | Natural Science Foundation of Qinghai Province in China [2017-ZJ-933Q} ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51769028, 51508137, 11872364, 11902009} ; CAS Pioneer Hundred Talents Program |
| 其他责任者 | Cao, P ; Qian, G |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85438]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Berto Filippo} Norwegian Univ Sci & Technol NTNU Dept Mech & Ind Engn Richard Birkelands Vei 2b N-7491 Trondheim Norway 2.{Qian Guian} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.{Qian Guian} Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech LNM Beijing 100190 Peoples R China 4.{Dai Yanwei} Beijing Univ Technol Inst Elect Packaging Technol & Reliabil Beijing 100124 Peoples R China 5.{Du Xianhe, Liu Yinghua} Tsinghua Univ Dept Engn Mech AML Beijing 100084 Peoples R China 6.{Du Xianhe, Han Qiang} South China Univ Technol Sch Civil Engn & Transportat Guangzhou 510641 Peoples R China 7.{Cao Peng} Beijing Univ Technol Coll Architecture & Civil Engn Beijing 100124 Peoples R China |
| 推荐引用方式 GB/T 7714 | Du XH,Dai YW,Han Q,et al. An alternative numerical method for calculating C* parameter under mode I loading utilizing rate-dependent energy release rate[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2020,109:102737. |
| APA | Du XH.,Dai YW.,Han Q.,Liu YH.,Cao P.,...&Berto F.(2020).An alternative numerical method for calculating C* parameter under mode I loading utilizing rate-dependent energy release rate.THEORETICAL AND APPLIED FRACTURE MECHANICS,109,102737. |
| MLA | Du XH,et al."An alternative numerical method for calculating C* parameter under mode I loading utilizing rate-dependent energy release rate".THEORETICAL AND APPLIED FRACTURE MECHANICS 109(2020):102737. |
入库方式： OAI收割
来源：力学研究所
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