Failure mechanisms of cross-ply carbon fiber reinforced polymer laminates under longitudinal compression with experimental and computational analyses
- Nanjing University of Aeronautics and Astronautics (China); Ford Motor Company, Dearborn, MI (United States); Nanjing University of Aeronautics and Astronautics
- The Ohio State Univ., Columbus, OH (United States); Ford Motor Company, Dearborn, MI (United States)
- Nanjing University of Aeronautics and Astronautics (China)
- Northwestern Univ., Evanston, IL (United States)
- Chongqing University (China)
- Univ. of Michigan, Dearborn, MI (United States)
- Ford Motor Company, Dearborn, MI (United States)
Here, this study investigates the failure mechanisms of cross-ply laminates subjected to longitudinal compressive loading. A sequence of failure initiation and propagation process is observed based on optical microscopy images of failed specimens. Specifically, the failure process in the cross-ply laminates involves a combination of four failure mechanisms: fiber kinking, delamination, matrix cracking, and fiber/matrix splitting. We find that the kink-bands in the middle 0° plies of the cross-ply laminates most often show a wedge shape and the angle of matrix cracks in the 90° plies is slightly larger than that of pure 90° plies. The reason has been attributed to the constraining effects by the adjacent plies. The next focus of this study is to propose hybrid micro-macro models to more systematically study the failure mechanisms of the cross-ply laminates. We show that these models accurately predict the combined failure modes of the cross-ply laminates and enable us to closely investigate the interactions of different failure mechanisms. More importantly, the hybrid models achieve great computational efficiency compared to full-scale microstructural models. Finally, the combined experimental and computational analyses presented here provide a new level of understanding of the kink-band morphology and damage mechanisms in the cross-ply laminates.
- Research Organization:
- Ford Motor Company, Dearborn, MI (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- Grant/Contract Number:
- EE0006867
- OSTI ID:
- 1504747
- Journal Information:
- Composites Part B: Engineering, Journal Name: Composites Part B: Engineering Journal Issue: C Vol. 167; ISSN 1359-8368
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Effect of thickness variation on static behaviour of carbon fiber reinforced polymer multidirectional laminated composite
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journal | September 2019 |
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