Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects
Abstract
In this work, fatigue tests for unidirectional (UD) CFRP composite specimens of various sizes are conducted under different stress ratios. The results show that the specimen size has considerable influence on the transverse tension-tension fatigue performance of UD laminates. The underlying fatigue mechanisms are also investigated through SEM observations. Moreover, a fatigue life prediction method considering size effects is presented, and a good correlation is observed between the prediction and the test data. Lastly, to allow for an evaluation of the effects of mean stress, constant fatigue life diagrams for 0°, 10°, and 90° UD composites are established based on four-segment anisomorphic model.
- Authors:
-
- Nanjing University of Aeronautics and Astronautics (China)
- Ford Motor Company, Dearborn, MI (United States)
- Univ. of Michigan, Dearborn, MI (United States)
- Publication Date:
- Research Org.:
- Ford Motor Company, Detroit, MI (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1504743
- Alternate Identifier(s):
- OSTI ID: 1636174
- Grant/Contract Number:
- EE0006867
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- International Journal of Fatigue
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: C; Journal ID: ISSN 0142-1123
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING; CFRP composites; Fatigue model; Size effect; Constant fatigue life diagram
Citation Formats
Liu, Haolong, Ojha, Avinesh, Li, Ziang, Engler-Pinto, Carlos C., Su, Xuming, Sun, Qingping, Kang, Hongtae, Wen, Weidong, and Cui, Haitao. Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects. United States: N. p., 2018.
Web. doi:10.1016/j.ijfatigue.2018.11.009.
Liu, Haolong, Ojha, Avinesh, Li, Ziang, Engler-Pinto, Carlos C., Su, Xuming, Sun, Qingping, Kang, Hongtae, Wen, Weidong, & Cui, Haitao. Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects. United States. https://doi.org/10.1016/j.ijfatigue.2018.11.009
Liu, Haolong, Ojha, Avinesh, Li, Ziang, Engler-Pinto, Carlos C., Su, Xuming, Sun, Qingping, Kang, Hongtae, Wen, Weidong, and Cui, Haitao. 2018.
"Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects". United States. https://doi.org/10.1016/j.ijfatigue.2018.11.009. https://www.osti.gov/servlets/purl/1504743.
@article{osti_1504743,
title = {Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects},
author = {Liu, Haolong and Ojha, Avinesh and Li, Ziang and Engler-Pinto, Carlos C. and Su, Xuming and Sun, Qingping and Kang, Hongtae and Wen, Weidong and Cui, Haitao},
abstractNote = {In this work, fatigue tests for unidirectional (UD) CFRP composite specimens of various sizes are conducted under different stress ratios. The results show that the specimen size has considerable influence on the transverse tension-tension fatigue performance of UD laminates. The underlying fatigue mechanisms are also investigated through SEM observations. Moreover, a fatigue life prediction method considering size effects is presented, and a good correlation is observed between the prediction and the test data. Lastly, to allow for an evaluation of the effects of mean stress, constant fatigue life diagrams for 0°, 10°, and 90° UD composites are established based on four-segment anisomorphic model.},
doi = {10.1016/j.ijfatigue.2018.11.009},
url = {https://www.osti.gov/biblio/1504743},
journal = {International Journal of Fatigue},
issn = {0142-1123},
number = C,
volume = 120,
place = {United States},
year = {Fri Nov 09 00:00:00 EST 2018},
month = {Fri Nov 09 00:00:00 EST 2018}
}
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Cited by: 8 works
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