温度对三维五向编织/环氧树脂复合材料拉伸性能的影响
详细信息Effects of temperature on tensile property of three-dimension and five-direction
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摘要: 研究了三维五向编织/环氧树脂复合材料和树脂基层合复合材料在室温、 80℃、 150℃和180℃的拉伸性能, 讨论了不同温度对三维五向编织复合材料和层合复合材料拉伸的影响规律。研究结果表明, 三维五向编织复合材料在80℃、 150℃时的拉伸强度与室温相近, 而在180℃时, 比室温时的拉伸强度下降了15.37%; 层合复合材料在80℃、 150℃和180℃时的拉伸强度则比室温分别下降了3.45%、 13.3%和34.42%。造成层合复合材料高温拉伸强度下降较大的原因是： 在高温时, 由于树脂被破坏, 使层合复合材料发生了分层。说明相同树脂基体的复合材料, 增强体结构对复合材料在高温时的拉伸性能有着重要的影响。
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关键词:
- 三维五向编织复合材料 /
- 层合复合材料 /
- 环氧树脂 /
- 拉伸强度
Abstract: The tensile properties of three-dimension and five-direction braided/epoxy resin composites and laminated resin composites at temperature of room、 80℃, 150℃ and 180℃ were studied. The effect rules of different temperature on the tensile property of these composites were discussed. The reasons for the variations of tensile property of these composites at different temperature were also analyzed. The tensile strength of three-dimension and five-direction braided composites at 80℃ and 150℃ keeps the same level with that at room temperature. At 180℃, the tensile strength of three-dimension and five-direction braided composites decreases by 15.37% compared with that at room temperature. At 80℃、 150℃ and 180℃, the tensile strength of laminated composite decreases by 3.45%, 13.3% and 34.42%, respectively compared with that at room temperature. The significant decrease for the tensile strength of laminated composites at high temperature is due to the delamination of the laminated composites since the resin damaged, which shows that structures of reinforcements have significant influences on tensile property of resin composites at high temperature. -
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