Study on fatigue life prediction method of composite laminates

被引：0
|
作者：
Tuo H. [1 ]
Wu T. [2 ]
Lu Z. [3 ]
Ma X. [4 ]
机构：
[1] School of Science, Chang′an University, Xi′an
[2] School of Civil Engineering, Chang′an University, Xi′an
[3] School of Aeronautics, Northwestern Polytechnical University, Xi′an
[4] Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing
来源：
Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University | 2022年 / 40卷 / 03期
关键词：
composites; damage evolution; fatigue life; laminates;
D O I：
10.1051/jnwpu/20224030651
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Advanced composites have been widely used in aerospace field and transportation field in ground due to their excellent mechanical properties. Fatigue damage and life prediction of composites have always been the important and difficult issues in the field of composite mechanics. In this paper, the maximum stress criterion and Puck criterion were extended to fatigue failure criterion, and the fatigue damage analysis model of composite laminates was established by combining the gradual degradation model of material properties, the regularized fatigue life analysis method and the fatigue damage accumulation theory. Then, the model was used to predict the damage evolution and failure mechanism of composite laminates, and the fatigue tests with three stress levels (55%, 60% and 65%) were conducted. The fatigue life and failure mode of the numerical results matches well with the test results. Under fatigue loadings, the fatigue damage initiated from free edges on both sides of the plate to the inside of the laminates. The matrix damage first appeared in the 90° plies on two free sides, then the matrix damage and fiber damage of 45° plies were induced. The fiber damage of 0° ply finally appears and rapidly spreads to the center of laminates until the damage covers the entire cross section. ©2022 Journal of Northwestern Polytechnical University.
引用
收藏
页码：651 / 660
页数：9
相关论文
共 27 条
  • [1] HASHIN Z, ROTEM A., A fatigue failure criterion for fiber reinforced materials[J], Journal of Composite Materials, 7, 4, pp. 448-464, (1973)
  • [2] PHILIPPIDIS T P, VASSILOPOULOS A P., Fatigue strength prediction under multiaxial stress, Journal of Composite Materials, 33, 17, pp. 1578-1599, (1999)
  • [3] ELLYIN F, EL-KADI H., A fatigue failure criterion for fiber reinforced composite laminae[J], Composite Structures, 15, 1, pp. 61-74, (1990)
  • [4] BROUTMAN L J, SAHU S., A new theory to predict cumulative fatigue damage in fiberglass reinforced plastics, ASTM STP, 497, pp. 170-188, (1972)
  • [5] SCHAFF J R, DAVIDSON B D., Life prediction methodology for composite structures. Part Ⅰ-constant amplitude and two-stress level fatigue, Journal of Composite Materials, 31, 2, pp. 128-157, (1997)
  • [6] YAO W, HIMMEL N., Statistical analysis of data from truncated fatigue life and corresponding residual strength experiments for polymer matrix composites, International Journal of Fatigue, 21, 6, pp. 581-585, (1999)
  • [7] YAO W, HIMMEL N., A new cumulative fatigue damage model for fibre-reinforced plastics, Composites Science and Technology, 60, 1, pp. 59-64, (2000)
  • [8] STOJKOVIC N, FOLI R, PASTERNAK H., Mathematical model for the prediction of strength degradation of composites subjected to constant amplitude fatigue, International Journal of Fatigue, 103, pp. 478-487, (2017)
  • [9] PHILIPPIDIS T P, VASSILOPOULOS A P., Fatigue of composite laminates under off-axis loading, International Journal of Fatigue, 21, 3, pp. 253-262, (1999)
  • [10] LIU H, ZHANG Z, JIA H, Et al., A modified composite fatigue damage model considering stiffness evolution for wind turbine blades, Composite Structures, 233, (2020)
123