Effect of Fiber Lay-Up Direction Misalignment on the Natural Frequency of Composite Laminates

Abstract:

With the extensive use of composite materials in aviation industry, the research of factors which affect their basic performances in production and usage has become very important. In this paper, a finite element analysis model is built by the commercial software MSC.Nastran / Patran to research the effect of fiber lay-up direction misalignment on the natural frequency of composite laminates. The results show that, in the same boundary conditions, stacking sequence has a significant impact on the natural frequencies and vibration modes of composite laminates, and in the lay-up process, the natural frequency change of laminates caused by 0° fiber lay-up direction misalignment is much larger than the natural frequency change of laminates due to 90° fiber lay-up direction misalignment. In the process control and certification of composite laminate plates lay-up, special attention should be taken to the inspection of 0° direction fibers.

• Periodical: Advanced Materials Research (Volumes 160-162)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.160-162.65
• Online since: November 2010
• Authors: Zhen Yu Feng, Zhao Chen Chen, Jie Wen Hu, Qian Yang, Tian Chun Zou
• Keywords: Fiber Lay-Up Direction Misalignment, Finite Element Analysis (FEA), Modeling, Natural Frequency

References

[1] I.M. Daniel, O. Ishai: Engineering mechanics of composite materials (Oxford University Press, New York 2006).

[2] R.M. Jones: Mechanics of composite materials (McGraw-Hill, New York 1975).

[3] B.S. Liu, C. Huang: Patran from entry to the master (Water Power Press, China 2003).