Analysis of Fatigue Life of PMMA at Different Frequencies Based on a New Damage Mechanics Model
Joint Authors
Chen, Fang
Yao, Weixing
Huang, Aifeng
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-11
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Low-cycle fatigue tests at different frequencies and creep tests under different stress levels of Plexiglas Resist 45 were conducted.
Correspondingly, the creep fracture time, S-N curves, cyclic creep, and hysteresis loop were obtained.
These results showed that the fatigue life increases with frequency at low frequency domain.
After analysis, it was found that fatigue life is dependent on the load rate and is affected by the creep damage.
In addition, a new continuum damage mechanics (CDM) model was established to analyze creep-fatigue life, where the damage increment nonlinear summation rule was proposed and the frequency modification was made on the fatigue damage evolution equation.
Differential evolution (DE) algorithm was employed to determine the parameters within the model.
The proposed model described fatigue life under different frequencies, and the calculated results agreed well with the experimental results.
American Psychological Association (APA)
Huang, Aifeng& Yao, Weixing& Chen, Fang. 2014. Analysis of Fatigue Life of PMMA at Different Frequencies Based on a New Damage Mechanics Model. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-465148
Modern Language Association (MLA)
Huang, Aifeng…[et al.]. Analysis of Fatigue Life of PMMA at Different Frequencies Based on a New Damage Mechanics Model. Mathematical Problems in Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-465148
American Medical Association (AMA)
Huang, Aifeng& Yao, Weixing& Chen, Fang. Analysis of Fatigue Life of PMMA at Different Frequencies Based on a New Damage Mechanics Model. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-465148
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465148