不同半圆切深度对飞机复合材料长桁压缩性能作用

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (8): 83-88.

不同半圆切深度对飞机复合材料长桁压缩性能作用

张明星

中国商飞上海飞机设计研究院,上海201210

收稿日期:2018-02-26 出版日期:2018-08-28 发布日期:2018-08-28
作者简介:张明星(1982-),男,博士,主要从事航空纤维增强复合材料方面的研究,schoolstar1982@163.com。

STUDIES ON SEMI-CIRCLE DEPTH INFLUENCE ON COMPRESSIVE PROPERTIES OF COMPOSITE STRINGER OF AIRCRAFT

ZHANG Ming-xing

Shanghai Aircraft Design and Research Institute, Shanghai 201210, China

Received:2018-02-26 Online:2018-08-28 Published:2018-08-28

摘要/Abstract

摘要： 制作了不同深度的中央翼半圆切长桁端头试验件,通过对轴向压缩测试,测得了整个试验件的载荷-应变曲线。试验结果表明:随着试验载荷的增加,试验件发生非线性变形,半圆切深度对破坏载荷影响显著,半圆切位置从紧固件处往内(半圆切深度变浅)移动,破坏载荷明显增大;从紧固件处往外(半圆切深度变大)移动,破坏载荷减小。长桁蒙皮区域最大应变出现在肋缘条和蒙皮连接的第一排钉附近。

关键词: 半圆切, 深度, 压缩, 破坏

Abstract: Semi-circle depth stringer end samples of center wing are made, and compression test is carried out. Load-strain curves under axial compression load were obtained. The results show that non-linear deformation appeared, and the failure load is greatly influenced by the semi-circle depth. Failure load increases with the semi-circle depth. The largest strain appears on the first row fasteners on the rib flange and skin.

Key words: semi-circle, depth, compression, failure

中图分类号:

TB332

张明星. 不同半圆切深度对飞机复合材料长桁压缩性能作用[J]. 玻璃钢/复合材料, 2018, 0(8): 83-88.

ZHANG Ming-xing. STUDIES ON SEMI-CIRCLE DEPTH INFLUENCE ON COMPRESSIVE PROPERTIES OF COMPOSITE STRINGER OF AIRCRAFT[J]. Fiber Reinforced Plastics/Composites, 2018, 0(8): 83-88.

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