含损伤复合材料壁板承载能力的试验与仿真模拟现状

摘要/Abstract

摘要： 复合材料加筋壁板由于其薄壁、承载效率高的特点而在现代飞机中得到了广泛应用,但在制造和使用过程中不可避免地会遭受低速冲击而产生损伤。因此,解决含损伤复合材料加筋壁板的承载能力预测问题成为保证复合材料飞机结构使用安全的重要问题。本文从试验和仿真模拟两方面,对复合材料加筋壁板的承载能力进行了归纳总结。在试验研究中分析了四种典型的冲击后加载试验形式,包括冲击后压缩、冲击后压缩疲劳、冲击后剪切以及冲击后剪切疲劳。同时从加筋壁板的建模方法、损伤的建模方法、损伤判据和性能退化方法等四个方面对承载能力预测进行了汇总分析,并指出了目前利用仿真模拟手段进行承载能力预测中存在的问题,以期为复合材料加筋壁板承载能力预测的进一步研究提供有益参考。

关键词: 复合材料, 加筋壁板, 损伤, 承载能力

Abstract: Stiffened composite panels are widely used in modern aviation industry because of its thin-walled and high bearing efficiency. It is inevitable to cause damages by the low-speed impaction during manufacturing and servicing processes. Thus, how to predict the bearing capability of stiffened composite panels with damages has become an important problem to ensure the safety of composite structures during the servicing process. In this paper, the failure mechanism of composite stiffened panel is summarized from two aspects of experiment and simulation. In the experimental study, four typical experimental types including the compression after impact, compression after impact fatigue, shear after impact and shear after impact fatigue are illustrated and analyzed. In the simulation research, the modeling method of stiffened panel, damage modeling method, failure criteria and property degradation rules are summarized. Finally, the existing problems in the current simulation are proposed, which provides a useful reference for further research on the bearing ability of composite stiffened panel.

Key words: composites, stiffened panel, damage, bearing capability

中图分类号:

TB332

倪迎鸽, 邹鹏, 毕雪. 含损伤复合材料壁板承载能力的试验与仿真模拟现状[J]. 复合材料科学与工程, 2020, 0(10): 110-121.

NI Ying-ge, ZOU Peng, BI Xue. EXPERIMENTAL AND SIMULATION STATUS OF BEARING CAPACITY OF COMPOSITE PANELS WITH DAMAGE[J]. Composites Science and Engineering, 2020, 0(10): 110-121.

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