On the Evaluation of Energy Dissipation at the Beginning of Fatigue
The slope method is a popular energy dissipation estimation method, which ignores the influence of heat exchange. Within the framework of the zero-dimensional thermal diffusion model, this paper presents a calculation method for evaluating the energy dissipation of materials in the initial stage of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/10/1512 |
| _version_ | 1797513880075763712 |
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| author | Ling Lan Shaofei Guo Xuesong Liu |
| author_facet | Ling Lan Shaofei Guo Xuesong Liu |
| author_sort | Ling Lan |
| collection | DOAJ |
| description | The slope method is a popular energy dissipation estimation method, which ignores the influence of heat exchange. Within the framework of the zero-dimensional thermal diffusion model, this paper presents a calculation method for evaluating the energy dissipation of materials in the initial stage of fatigue, which can be called the optimization method. Different from the slope method, this method takes the influence of thermal boundary conditions into consideration. Numerical simulation showed that the optimization method has the ability to accurately estimate energy dissipation in different experimental environments and is not sensitive to measurement noise. Compared with the popular slope method, the newly proposed optimization method has certain advantages in adaptability to different environments and flexibility in parameter selection. A case study was also carried out to study a high-cycle fatigue life of an aluminum alloy which demonstrated that results predicted by the proposed method matched the experimental data in the range of short fatigue life. |
| first_indexed | 2024-03-10T06:23:46Z |
| format | Article |
| id | doaj.art-310898a1dc5c4d85b3174f3c24615112 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T06:23:46Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-310898a1dc5c4d85b3174f3c246151122023-11-22T19:07:58ZengMDPI AGMetals2075-47012021-09-011110151210.3390/met11101512On the Evaluation of Energy Dissipation at the Beginning of FatigueLing Lan0Shaofei Guo1Xuesong Liu2Shanghai Shipbuilding Technology Research Institute, Shanghai 200032, ChinaLuoyang Ship Material Research Institute, Luoyang 471039, ChinaState Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaThe slope method is a popular energy dissipation estimation method, which ignores the influence of heat exchange. Within the framework of the zero-dimensional thermal diffusion model, this paper presents a calculation method for evaluating the energy dissipation of materials in the initial stage of fatigue, which can be called the optimization method. Different from the slope method, this method takes the influence of thermal boundary conditions into consideration. Numerical simulation showed that the optimization method has the ability to accurately estimate energy dissipation in different experimental environments and is not sensitive to measurement noise. Compared with the popular slope method, the newly proposed optimization method has certain advantages in adaptability to different environments and flexibility in parameter selection. A case study was also carried out to study a high-cycle fatigue life of an aluminum alloy which demonstrated that results predicted by the proposed method matched the experimental data in the range of short fatigue life.https://www.mdpi.com/2075-4701/11/10/1512energy dissipationtemperature evolutionenergy methodhigh cycle fatigue |
| spellingShingle | Ling Lan Shaofei Guo Xuesong Liu On the Evaluation of Energy Dissipation at the Beginning of Fatigue Metals energy dissipation temperature evolution energy method high cycle fatigue |
| title | On the Evaluation of Energy Dissipation at the Beginning of Fatigue |
| title_full | On the Evaluation of Energy Dissipation at the Beginning of Fatigue |
| title_fullStr | On the Evaluation of Energy Dissipation at the Beginning of Fatigue |
| title_full_unstemmed | On the Evaluation of Energy Dissipation at the Beginning of Fatigue |
| title_short | On the Evaluation of Energy Dissipation at the Beginning of Fatigue |
| title_sort | on the evaluation of energy dissipation at the beginning of fatigue |
| topic | energy dissipation temperature evolution energy method high cycle fatigue |
| url | https://www.mdpi.com/2075-4701/11/10/1512 |
| work_keys_str_mv | AT linglan ontheevaluationofenergydissipationatthebeginningoffatigue AT shaofeiguo ontheevaluationofenergydissipationatthebeginningoffatigue AT xuesongliu ontheevaluationofenergydissipationatthebeginningoffatigue |