A Novel Fatigue Damage Model of Rock considering Temperature Effects
Joint Authors
Cai, Yanyan
Tang, Xin
Zhu, Yaoliang
Yu, Jin
Yao, Wei
Liu, Xueying
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The deformation rules and failure types of rock fatigue damage at different temperatures are quite different, and existing constitutive theory cannot describe them quantitatively.
A novel rock fatigue damage model considering the effects of temperature was presented based on phenomenology.
In this model, the residual strain method was used to define the fatigue damage, and the Harris attenuation function was introduced to characterize the cyclic damage evolution.
The proposed model has considered the influence of the initial damage and temperature, and the model parameters can be easily calculated.
The accuracy of the model was verified by comparing the calculated values of cyclic upper strain and fatigue life with previous test results.
The physical significance of the model parameters shows that parameter a is related to fatigue stress ratio and lithology, while parameter b is related to temperature.
The study has some reference values for the fatigue damage model of rock considering the influence of temperature.
American Psychological Association (APA)
Zhu, Yaoliang& Yu, Jin& Cai, Yanyan& Tang, Xin& Yao, Wei& Liu, Xueying. 2020. A Novel Fatigue Damage Model of Rock considering Temperature Effects. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123642
Modern Language Association (MLA)
Zhu, Yaoliang…[et al.]. A Novel Fatigue Damage Model of Rock considering Temperature Effects. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1123642
American Medical Association (AMA)
Zhu, Yaoliang& Yu, Jin& Cai, Yanyan& Tang, Xin& Yao, Wei& Liu, Xueying. A Novel Fatigue Damage Model of Rock considering Temperature Effects. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123642
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123642