Fatigue modeling for carbon/epoxy unidirectional composites under various stress ratios considering size effects
Source abstract
Abstract
Abstract 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. Finally, 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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Fatigue and fracture mechanics · Textile materials and evaluations
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect10.1016/j.matdes.2016.06.040 ↗
2. A fatigue damage model of composite materials10.1016/j.ijfatigue.2009.02.027 ↗
3. A mechanisms-based reliability model for fatigue of composite laminates10.1002/zamm.201500047 ↗
4. Modelling of fatigue damage progression and life of CFRP laminates10.1046/j.1460-2695.2003.00585.x ↗
5. Progressive fatigue damage modeling of composite materials, part I: modeling10.1177/002199830003401301 ↗
6. New fatigue data for wind turbine blade materials10.1115/1.1624089 ↗
7. Optimized constant-life diagram for the analysis of fiberglass composites used in wind turbine blade10.1115/1.2047589 ↗
8. Fatigue life prediction for hybrid composites10.1016/0142-1123(89)90306-X ↗
9. Fatigue behaviour of carbon fibre reinforced plastics10.1016/0010-4361(90)90238-R ↗
10. Progressive fatigue damage modeling of composite materials, part II: material characterization and model verification10.1177/002199830003401302 ↗
11. Life-prediction for constant-stress fatigue in carbon-fibre composites10.1098/rsta.1997.0055 ↗
12. Park T, Kim M, Jang B, Lee J, Park J. Nonlinear constant life model for fatigue life prediction of composite materials. 18th International Conference on Composite Materials, Korea, 2011.
13. Nonlinear constant fatigue life diagrams for carbon/epoxy laminates at room temperature10.1016/j.compositesa.2007.01.016 ↗
14. A failure-mode based anisomorphic constant life diagram for a unidirectional carbon/epoxy laminate under off-axis fatigue loading at room temperature10.1177/0021998313476324 ↗
15. The effect of specimen size on the strength of CFRP10.1016/0010-4361(78)90590-6 ↗
16. Statistical study of strength and fatigue life of composite materials10.1016/0010-4361(87)90007-3 ↗
17. Scale effect in fatigue of composite materials
18. Mechanics based statistics of failure risk of quasi-brittle structures and size effect on safety factors10.1073/pnas.0602684103 ↗
19. Le · 2010
20. Use of Weibull statistics to quantify specimen size effects in fatigue of GRP10.1016/0266-3538(88)90084-X ↗
21. Scaling of strength and lifetime probability distributions of quasi-brittle structures based on atomistic fracture mechanics10.1073/pnas.0904797106 ↗
22. Strength ratios of composite materials in flexure and in tension10.1177/002199837400800209 ↗
23. The exponential law of endurance test
24. Behravesh · 2013