中国飞机强度研究所建所 60 周年专刊

分层深度对航空复材结构压缩性能的影响

  • 刘子昂 ,
  • 郑锡涛 ,
  • 陈英实 ,
  • 邓天择 ,
  • 马伟杰
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  • 1.西北工业大学 航空学院,西安 710072
    2.强度与结构完整性全国重点实验室,西安 710072
    3.航空工业济南特种结构研究所 高性能电磁窗航空科技重点实验室,济南 250023
.E-mail: zhengxt@nwpu.edu.cn

收稿日期: 2025-05-30

  修回日期: 2025-06-17

  录用日期: 2025-08-21

  网络出版日期: 2025-09-05

基金资助

国家重点研发计划(2023YFB3709603);航空科学基金(ASFC-20230015053005)

Effect of delamination depth on compressive properties of aircraft composite laminates

  • Ziang LIU ,
  • Xitao ZHENG ,
  • Yingshi CHEN ,
  • Tianze DENG ,
  • Weijie MA
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  • 1.School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China
    2.National Key Laboratory of Strength and Structural Integrity,Xi’an 710072,China
    3.Aviation Key Lab of Science and Technology on High Performance Electromagnetic Windows,AVIC Research Institute for Special Structures of Aeronautical Composite,Jinan 250023,China

Received date: 2025-05-30

  Revised date: 2025-06-17

  Accepted date: 2025-08-21

  Online published: 2025-09-05

Supported by

National Key Research and Development Program of China(2023YFB3709603);Aeronautical Science Foundation of China(ASFC-20230015053005)

摘要

航空复合材料层合板结构在制造和使用过程中,容易产生分层损伤。分层损伤的存在会显著降低结构强度、刚度和稳定性,致使结构提前发生失稳和整体破坏。因此,需要探究分层损伤对复合材料层合板结构力学性能的影响。航空结构易分层部位如何选材亟待解决,分层深度对复合材料结构力学性能影响分析有待完善。为此,针对单分层损伤和冲击损伤(梯度分层损伤),选择4种碳纤维增强环氧树脂基复合材料,开展准静态压缩、低速冲击和冲击后压缩试验,对比含分层损伤4种复合材料层合板结构的压缩剩余强度;结合有限元仿真,探究分层深度对复合材料层合板结构压缩性能的影响趋势,并对产生这一趋势的原因进行分析。研究结果表明,相比于单向预浸料,航空结构在易分层部位选择高强度的织物预浸料会带来更好的效果,压缩剩余强度最大可提高118.31%,分层深度的差异将导致复合材料层合板的承载能力由不同子板的失效行为主导。研究结果深入讨论了分层损伤对航空复合材料层合板结构压缩性能的影响,为航空复合材料结构损伤容限设计提供了研究依据。

本文引用格式

刘子昂 , 郑锡涛 , 陈英实 , 邓天择 , 马伟杰 . 分层深度对航空复材结构压缩性能的影响[J]. 航空学报, 2025 , 46(21) : 532340 -532340 . DOI: 10.7527/S1000-6893.2025.32340

Abstract

Aircraft composite laminates are susceptible to delamination damage throughout their lifecycle, from manufacturing to in-service operation. The existence of delamination damage results in a significant degradation in structural strength, stiffness, and stability, which can induce early instability and precipitate global failure. Therefore, it is necessary to explore the influence of delamination damage on the mechanical properties of composite laminates. Addressing the material selection for delamination-critical regions in aircraft structures is an imperative research objective. Further analysis is warranted to understand how delamination depth affects the mechanical behavior of composite structures. Therefore, four kinds of carbon fiber reinforced epoxy resin matrix composites were selected for single delamination damage and impact damage (gradient delamination damage). Quasi-static compression, low-velocity impact and compression after impact tests were carried out to compare the compressive residual strength of four composite laminates with delamination damage. Combined with finite element simulation, the influence trend of delamination depth on the compression performance of composite laminates is explored, and the reason for this trend is analyzed. The results show that compared with the unidirectional prepreg, the selection of high strength fabric prepreg in delamination-critical regions of the aircraft structure will bring better results, and the maximum compressive residual strength can be increased by 118.31%. Additionally, different delamination depths will lead to the bearing capacity of composite laminates determined by different sub-plates. The influence of delamination damage on the compressive properties of aircraft composite laminates has been discussed in depth, which provides a research basis for the damage tolerance design of aircraft composite structures.

参考文献

[1] 赵丽滨, 龚愉, 张建宇. 纤维增强复合材料层合板分层扩展行为研究进展[J]. 航空学报201940(1): 522509.
  ZHAO L B, GONG Y, ZHANG J Y. A survey on delamination growth behavior in fiber reinforced composite laminates[J]. Acta Aeronautica et Astronautica Sinica201940(1): 522509 (in Chinese).
[2] 刘向民, 姚卫星, 陈方. 复合材料层合板结构冲击损伤数值模拟的损伤力学模型[J]. 航空学报201637(10): 3054-3063.
  LIU X M, YAO W X, CHEN F. Damage mechanics model for simulating impact responses of composite laminated structures[J]. Acta Aeronautica et Astronautica Sinica201637(10): 3054-3063 (in Chinese).
[3] 张海燕, 李根臣, 刘震宇, 等. 国产T700级碳纤维及复合材料性能表征[J]. 化工新型材料202048(4): 238-240.
  ZHANG H Y, LI G C, LIU Z Y, et al. Characterization of domestic T700 carbon fiber and its composites[J]. New Chemical Materials202048(4): 238-240 (in Chinese).
[4] 张磊, 张丽, 郑洁. T800级碳纤维复合材料结构压缩设计许用值确定方法研究[J]. 纤维复合材料202138(2): 56-58.
  ZHANG L, ZHANG L, ZHENG J. Research on determining structural compressed design allowable of T800 composites[J]. Fiber Composites202138(2): 56-58 (in Chinese).
[5] 郑晓霞, 郑锡涛, 沈真, 等. 低速冲击与准静态压痕力下复合材料层合板的损伤等效性[J]. 航空学报201031(5): 928-933.
  ZHENG X X, ZHENG X T, SHEN Z, et al. Damage equivalent of composite laminates subjected to drop-weight impact and quasi-static indentation force[J]. Acta Aeronautica et Astronautica Sinica201031(5): 928-933 (in Chinese).
[6] ZHANG C, HE E M, ZHU K Y, et al. Delamination propagation manipulation of composite laminates under low-velocity impact and residual compressive strength evaluation[J]. Engineering Fracture Mechanics2024307: 110333.
[7] ZHANG C, ZHENG X T, ZHU K Y, et al. Experimental investigation of low-velocity impact behavior and CAI on composite laminates by discrete interleaved toughening[J]. Mechanics of Advanced Materials and Structures202431(11): 2460-2471.
[8] ZHU K Y, ZHENG X T, PENG J, et al. The relationship between the impact position interference and CAI strength of composite sandwich structures under double impacts[J]. Composites Part B: Engineering2024268: 111092.
[9] 孙先念, 陈浩然, 陈绍杰. 含分层损伤复合材料层合板前后屈曲行为研究[J]. 航空学报199920(3): 224-229.
  SUN X N, CHEN H R, CHEN S J. Pre postbuckling analysis of composite laminates with delamination damage[J]. Acta Aeronautica et Astronautica Sinica199920(3): 224-229.
[10] 王雪明, 谢富原, 李敏, 等. 热压罐成型复合材料复杂结构对制造缺陷的影响规律[J]. 航空学报200930(4): 757-762.
  WANG X M, XIE F Y, LI M, et al. Effect rules of complex structure on manufacturing defects for composites in autoclave molding[J]. Acta Aeronautica et Astronautica Sinica200930(4): 757-762 (in Chinese).
[11] 许洪明, 温卫东, 刘芳. 含分层缺陷复合材料层合板压缩强度试验研究[J]. 航空发动机201339(3): 73-76.
  XU H M, WEN W D, LIU F. Compressive strength experimentation research on composite laminates layered defect[J]. Aeroengine201339(3): 73-76 (in Chinese).
[12] MEI H, TAN Y F, ZHANG D, et al. A novel delamination defects designed for understanding mechanical degradation in a laminated C/SiC composites[J]. Journal of Alloys and Compounds2019770: 1138-1146.
[13] YU M M, LIU H X, XIAO R B, et al. Residual strength and failure mechanism of CF/PPS composites with delamination damage[J]. Polymer Composites202445(13): 12391-12404.
[14] CHENG P, PENG Y, WANG K, et al. Mechanical performance and damage behavior of delaminated composite laminates subject to different modes of loading[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering202143(10): 455.
[15] ASLAN Z, ?AHIN M. Buckling behavior and compressive failure of composite laminates containing multiple large delaminations[J]. Composite Structures200989(3): 382-390.
[16] 周睿, 关志东, 贾云超, 等. 分层缺陷对复合材料层板压缩性能的影响[J]. 北京航空航天大学学报201541(2): 311-317.
  ZHOU R, GUAN Z D, JIA Y C, et al. Effects of delamination on compressional properties of composite laminate[J]. Journal of Beijing University of Aeronautics and Astronautics201541(2): 311-317 (in Chinese).
[17] LI Y L, WANG B, ZHOU L. Study on the effect of delamination defects on the mechanical properties of CFRP composites[J]. Engineering Failure Analysis2023153: 107576.
[18] BAI Y J, XU Z H, SONG J R, et al. Experimental and numerical analyses of stiffened composite panels with delamination under a compressive load[J]. Journal of Composite Materials202054(9): 1197-1216.
[19] HU C X, BAI Y J, XU Z H, et al. Progressive damage behavior of composite L-stiffened structures with initial delamination defects under uniaxial compression: Experimental and numerical investigations[J]. Polymer Composites202243(6): 3765-3781.
[20] LAPCZYK I, HURTADO J A. Progressive damage modeling in fiber-reinforced materials[J]. Composites Part A: Applied Science and Manufacturing200738(11): 2333-2341.
[21] HASHIN Z. Fatigue failure criteria for unidirectional fiber composites[J]. Journal of Applied Mechanics198148(4): 846-852.
[22] ZHOU J J, WEN P H, WANG S N. Finite element analysis of a modified progressive damage model for composite laminates under low-velocity impact[J]. Composite Structures2019225: 111113.
[23] KHAZAIE M, ESLAMI-FARSANI R, SAEEDI A. Evaluation of repeated high velocity impact on polymer-based composites reinforced with basalt and Kevlar fibers[J]. Materials Today Communications201817: 76-81.
[24] 沈真, 杨胜春, 陈普会. 复合材料抗冲击性能和结构压缩设计许用值[J]. 航空学报200728(3): 561-566.
  SHEN Z, YANG S C, CHEN P H. Behaviors of composite materials to withstand impact and structural compressive design allowableness[J]. Acta Aeronautica et Astronautica Sinica200728(3): 561-566 (in Chinese).
[25] 沈真, 陈普会, 唐啸东, 等. 复合材料结构设计值和冲击损伤容限许用值[J]. 航空学报199314(12): 575-582.
  SHEN Z, CHEN P H, TANG X D, et al. Composite structure design values and impact damage tolerance allowables[J]. Acta Aeronautica et Astronautica Sinica199314(12): 575-582 (in Chinese).
[26] 沈真. 复合材料飞机结构设计许用值及其确定原则[J]. 航空学报199819(4): 385-392.
  SHEN Z. Design allowables of composite aircraft structures and their determination principles[J]. Acta Aeronautica et Astronautica Sinica199819(4): 385-392.
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