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红富士苹果

铁虫 (小有名气)

[求助] 复合材料弯曲测试为何压缩面失效最常见?

如题,有文献提到,复合材料测试中弯曲载荷下的常见失效包括压缩失效、拉伸失效、剪切和/或分层,其中压缩失效最常见。

我想了解一下为什么弯曲中压缩失效最常见。除了因为单一复合材料的压缩强度一般小于拉伸强度,还有其他原因吗?(比如压缩面材料两端受挤压,拉伸面材料只一段受力?)

文献:ARY SUBAGIA I D G, KIM Y, TIJING L D, 等. Effect of stacking sequence on the flexural properties of hybrid composites reinforced with carbon and basalt fibers[J]. Composites Part B: Engineering, 2014, 58: 251–258.
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cadfer

木虫 (著名写手)

最关键问题是加载点应力集中直接影响受压面。

发自小木虫Android客户端
3楼2020-02-27 10:54:19
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