湿热环境对复合材料加筋板压缩性能的影响
Effect of Hygrothermal Environment on Compressive Performance of Composite Stiffened Panel
摘 要
使纤维增强树脂基复合材料加筋板在70 ℃、水浴条件下达到吸湿平衡,然后对普通加筋板和吸湿平衡后加筋板进行压缩试验,研究了湿热环境对复合材料屈曲形式、屈曲载荷、破坏载荷和承载能力的影响。结果表明:两种加筋板的破坏形式均主要表现为筋条的脱胶、断裂和蒙皮的撕裂,吸湿后的加筋板仍存在后屈曲过程,但其屈曲载荷下降了8.4%,破坏载荷下降了19.2%。
湿热环境
屈曲载荷
破坏载荷
后屈曲
composite stiffened panel
hygrothermal environment
bulking load
failure load
post-bulking
Abstract
Fiber-reinforced resin matrix composite stiffened panels were put in water at 70 ℃ until the absorbing moisture reached a balance. The compression experiments were conducted for the common stiffened panels and the stiffened panels after absorbing moisture. The effects of hygrothermal environment on the buckling mode,buckling load,failure load and carrying capacity of the composite stiffened panel were studied. The results show that the failure modes of the two kinds of stiffened panels mainly contained the debonding and fracture of stiffener and the tearing of skin. Post-buckling progress still could be found after absorbing moisture of the stiffened panel. But its buckling load and failure load dropped by 8.2% and 19.2% after absorbing moisture.
中图分类号 V214.42
所属栏目 材料性能及其应用
基金项目
收稿日期 2013/7/18
修改稿日期 2014/7/17
网络出版日期
作者单位点击查看
备注冯宇(1989-),男,陕西西安人,博士研究生。
引用该论文: FENG Yu,HE Yu-ting,SHAO Qing,ZHANG Teng. Effect of Hygrothermal Environment on Compressive Performance of Composite Stiffened Panel[J]. Materials for mechancial engineering, 2015, 39(1): 73～76
冯宇,何宇廷,邵青,张腾. 湿热环境对复合材料加筋板压缩性能的影响[J]. 机械工程材料, 2015, 39(1): 73～76
被引情况:
【1】张浩宇,何宇廷,冯 宇,谭翔飞,邵 青,尹 翔, "碳纤维增强环氧树脂复合材料加筋板的压缩屈曲特性",机械工程材料 39, 59-62(2015)
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参考文献
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【2】BAO L R,YEE A F.Moisture diffusion and hygrothermal aging in bismaleimide matrix carbon fiber composites-part I:uni-weave composites［J］.Composites Science and Technology,2002,62(16):2099-2110.
【3】BAO L R,YEE A F.Moisture diffusion and hygrothermal aging in bismaleimide matrix carbon fiber composites:part II-woven and hybrid composites［J］.Composites Science and Technology,2002,62(16):2111-2119.
【4】过梅丽,阳芳,范欣愉,等.聚合物基复合材料的湿扩散参数研究［J］.复合材料学报,2001,18(1):34-37.
【5】陈新文,许凤和.T300/5405复合材料的吸水特性研究［J］.材料工程,1999(5):56-62.
【6】KONG C W,LEE I C,GON C,et al. Post-buckling and failure of stiffened composite panels under axial compression［J］.Composite Structures,1998,42(1):13-21.
【7】王平安,矫桂琼,王波,等.复合材料加筋板在剪切载荷下的屈曲特性研究［J］.机械强度,2009,31(1):78-82.
【8】刘均,黄宝宗.压剪组合作用下复合材料壁板的后屈曲承载能力［J］.东北大学学报:自然科学版,2007(1):151-156.
【9】BISAGNI C,VESCOVINI R. Analytical formulation for local buckling and post-buckling analysis of stiffened laminated panels［J］.Thin-Walled Structures,2009,47(3):318-334.
【10】中国航空研究院. 复合材料结构设计手册［M］.北京:航空工业出版社,2001.
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