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含脱胶缺陷复合材料L形接头拉脱强度实验研究

, PP. 186-191

Keywords: 复合材料,脱胶,整体化结构,L形接头,拉脱强度

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Abstract:

为考察脱胶缺陷对整体化结构在面外拉伸载荷下承载能力的影响,实验研究了脱胶形状、间距、位置和尺寸对L形接头拉脱强度的影响规律,定量评估了脱胶对L形接头拉脱强度的影响程度,提出了脱胶缺陷对L形接头拉脱强度影响的定量表征参数。结果表明,L形接头的拉脱强度对脱胶形状、脱胶间距的变化不敏感,对脱胶位置和脱胶尺寸的变化较为敏感;位于填充区所在胶接面区域的脱胶对L形接头拉脱强度影响最大;随着脱胶尺寸特别是填充区所在胶接面脱胶尺寸的增大,拉脱强度显著降低。

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