Volume 22 Issue 4
Aug.  2022
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QIN Guo-feng, QIN Rui-jian, MI Pei-wen, LI Ming. Optimal designs of hole shape and ply of composite plates with holes[J]. Journal of Traffic and Transportation Engineering, 2022, 22(4): 223-231. doi: 10.19818/j.cnki.1671-1637.2022.04.017
Citation: QIN Guo-feng, QIN Rui-jian, MI Pei-wen, LI Ming. Optimal designs of hole shape and ply of composite plates with holes[J]. Journal of Traffic and Transportation Engineering, 2022, 22(4): 223-231. doi: 10.19818/j.cnki.1671-1637.2022.04.017
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Optimal designs of hole shape and ply of composite plates with holes

doi: 10.19818/j.cnki.1671-1637.2022.04.017
  • 1.

    Teachers College for Vocational and Technical Education, Guangxi Normal University, Guilin 541001, Guangxi, China

  • 2.

    College of Automotive Engineering, Wuhan University of Technology, Wuhan 430000, Hubei, China

Funds:

National Natural Science Foundation of China 52102473

Guangxi Science and Technology Project GuikeAD20159010

More Information
  • Author Bio:

    QIN Guo-feng(1990-), male, associate professor, PhD, qinguofeng@gxnu.edu.cn

    MI Pei-wen(1991-), female, assistant professor, mipeiwen@gxnu.edu.cn

  • Received Date: 2022-01-26
    Available Online: 2022-10-08
  • Publish Date: 2022-08-25
    Abstract
  • For a larger bearing capacity of composite plates with holes, the hole shape and ply were optimized. On the basis of the damage mechanics model, the simulation analysis model of composite plates with holes was built, and its simulation accuracy was verified. Three kinds of composite plates with circular, triangle, and square holes were selected, and four optimization schemes were applied, i.e., hole shape optimization only, ply optimization only, hole shape optimization first and then ply optimization, and ply optimization first and then hole shape optimization. The failure analysis of composite plates with holes after optimization by different schemes was carried out. Analysis results show that the improvement in the failure load of composite plates with different holes by ply optimization only (7.6%-13.4%) is significantly greater than that by hole shape optimization only (2.0%-2.9%). The failure load of composite plates with triangle holes is improved the most by hole shape optimization only, while the failure load of composite plates with circular holes is improved the most by ply optimization only. When both hole shape optimization and ply optimization are adopted, the improvement effect is significantly better than that of a single optimization scheme, and the improvement in the failure load of composite plates with different holes by hole shape optimization first and then ply optimization is the greatest (11.6%-15.6%). The sequence of hole shape optimization and ply optimization has the greatest influence on composite plates with circular holes (a difference of 3.5%), but has relatively little influence on composite plates with triangle and square holes. Of the composite plates with three kinds of hole shapes, the failure load of composite plates with circular holes promotes the most (15.6%) after the optimization, and the performance of composite plates with circular holes is relatively good and stable in practical applications.

     

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