Study of fatigue fracture characteristics for duplex stainless steel STHE welded joint specimen
Engineering Failure Analysis Volume 155
Page 107763-
published_at 2023-10-31
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| File | |
| Title ( eng ) |
Study of fatigue fracture characteristics for duplex stainless steel STHE welded joint 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 Failure Analysis
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| Volume | 155 |
| Start Page | 107763 |
| Abstract |
A shell and tube heat exchanger (STHE) welded joint is considered for fatigue fracture mechanism. The joint is made up of a protruding tube fabricated to a tubesheet by means of welding. A super duplex stainless steel (DSS) material is used for the tube and tubesheet. Fatigue test was newly conducted using the single tube test specimen. The initial cracking plane was moved from the minimum sectional-area plane that was perpendicular to the loading direction, and the crack growth was almost planar. Stress analysis is carried out using finite element method (FEM) and the stress distributions are carefully studied by comparing the simple perforated plate. In addition, three-dimensional crack propagation (CP) simulation is performed employing extended finite element method (X-FEM). Fracture phenomenon is verified using the experimental and numerical crack front geometries. The fracture mechanics parameter is evaluated and verified with empirical formulae. CP behaviors are carefully discussed based on the fracture mechanics parameter. The CP life is presented for three loading amplitudes. The FAT class of the STHE welded joint is studied based on the available design standards such as BS, IIW and JSSC. Finally, the fatigue fracture characteristics of the STHE welded joint specimen are shown through the experimental and numerical methods.
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| Keywords |
Fatigue fracture
Super DSS STHE welded joint
Fatigue test
CP simulation
Fracture mechanics parameter
CP behaviors
FAT class
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier
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| Date of Issued | 2023-10-31 |
| 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.engfailanal.2023.107763
isVersionOf
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| Remark | The full-text file will be made open to the public on 31 October 2025 in accordance with publisher's 'Terms and Conditions for Self-Archiving' |
