Experimental observation and numerical investigation of fatigue crack propagation in a multi-tubular heat exchanger specimen
Engineering Fracture Mechanics Volume 288
Page 109355-
published_at 2023-05-23
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| File | |
| Title ( eng ) |
Experimental observation and numerical investigation of fatigue crack propagation in a multi-tubular heat exchanger specimen
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| Creator |
Ma Donghui
Okada Jun
Honnami Masahito
Shinoda Kaoru
Abe Masamitsu
Katayama Takeru
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| Source Title |
Engineering Fracture Mechanics
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| Volume | 288 |
| Start Page | 109355 |
| Abstract |
Novel high-cycle fatigue test results are presented for a multi-tubular heat exchanger specimen. The unique test specimen is developed with multiple tubes. Cracks were sequentially generated at the welded regions. These cracks were enlarged under tensile cyclic load. Fatigue crack propagation (CP) was produced with complicated-shaped crack geometries. Stress analysis and CP simulation are performed to analyze the experimental observations. The complicated CP phenomenon is successfully reproduced through numerical simulations. Fracture patterns and CP behaviors are discussed. Finally, the fatigue CP characteristics of the multi-tubular heat exchanger specimen are studied from the fracture mechanics viewpoint.
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| Keywords |
Multi-tubular heat exchanger specimen
Fatigue cracks
Fatigue test
CP simulation
X-FEM
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| Descriptions |
Financial support from the Hiroshima University Graduate School Research Fellowship Program, Japan is acknowledged.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier
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| Date of Issued | 2023-05-23 |
| Rights |
© <2023>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version.
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
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| Publish Type | Accepted Manuscript |
| Access Rights | embargoed access |
| Source Identifier |
[DOI] https://doi.org/10.1016/j.engfracmech.2023.109355
isVersionOf
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| Remark | The full-text file will be made open to the public on 23 May 2023 in accordance with publisher's 'Terms and Conditions for Self-Archiving' |
