Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
 Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936

Russian Russian English English About Journal | Issues | Guidelines | Editorial Board | Contact Us
 


IssuesArchive of Issues2023-4pp.1202-1213

Archive of Issues

Total articles in the database: 12854
In Russian (Èçâ. ÐÀÍ. ÌÒÒ): 8044
In English (Mech. Solids): 4810

<< Previous article | Volume 58, Issue 4 / 2023 | Next article >>
Yuan Liu and Qiwen Xue, "A New Approach to the Combination of Load Interaction Effects and Damage Functions in Fatigue Life Prediction Based on Ductile Dissipation Energy," Mech. Solids. 58 (4), 1202-1213 (2023)
Year 2023 Volume 58 Number 4 Pages 1202-1213
DOI 10.3103/S0025654423600113
Title A New Approach to the Combination of Load Interaction Effects and Damage Functions in Fatigue Life Prediction Based on Ductile Dissipation Energy
Author(s) Yuan Liu (School of Civil Engineering, Dalian Jiao Tong University, Liaoning Dalian, 116028 China, 15640832511@163.com)
Qiwen Xue (School of Civil Engineering, Dalian Jiao Tong University, Liaoning Dalian, 116028 China, xueqiwen@djtu.edu.cn)
Abstract To address the failure of the toughness dissipation energy model to capture the effect of inter-load loading history factors on structural fatigue life under variable amplitude loading, in this paper, taking into account the interaction between loads, load order, and real-time damage, the ratio of stress amplitude between two adjacent levels and the real-time fatigue damage degree is introduced into the model calculation, and a new interaction factor related to the real-time fatigue damage function is established to obtain an improved nonlinear fatigue life prediction model. The predictive capability of the improved fatigue life prediction model is verified based on the test data of a variety of commonly used materials, such as 45 steel and aluminum alloy Al-2024-T42, under two-level and multilevel variable amplitude loading. According to the comparison analysis between the model-predicted data and the experimental data, it can be seen that the modified nonlinear fatigue life prediction model in this paper can effectively predict the remaining fatigue life for different materials under the multiplelevel variable amplitude loading. Compared with other models, it is closer to the real experimental value. The data required in the model can be obtained from experiments without introducing additional parameters, which is more suitable for practical engineering.
Keywords toughness dissipation energy, fatigue life prediction, interaction factor, interaction between loads, nonlinear fatigue accumulation damage
Received 23 January 2023Revised 22 March 2023Accepted 02 May 2023
Link to Fulltext
<< Previous article | Volume 58, Issue 4 / 2023 | Next article >>
Orphus SystemIf you find a misprint on a webpage, please help us correct it promptly - just highlight and press Ctrl+Enter

101 Vernadsky Avenue, Bldg 1, Room 246, 119526 Moscow, Russia (+7 495) 434-3538 mechsol@ipmnet.ru https://mtt.ipmnet.ru
Founders: Russian Academy of Sciences, Ishlinsky Institute for Problems in Mechanics RAS
© Mechanics of Solids
webmaster
Rambler's Top100