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受拉表面缠绕抑制单向碳纤维复合材料杆件的开裂与冲击敏感性
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作者 郑同华 《航天返回与遥感》 2000年第1期58-61,共4页
文章论述了在受拉情况下用芳纶纤维对单向碳纤维复合材料构件进行表面缠绕的概念。表面缠绕提供了单向碳纤维纬向破损前必须克服的压紧应力,实验证明它对受冲击构件的开裂起到明显的抑制作用,提高了构件的剩余压紧强度,同时由于表面缠... 文章论述了在受拉情况下用芳纶纤维对单向碳纤维复合材料构件进行表面缠绕的概念。表面缠绕提供了单向碳纤维纬向破损前必须克服的压紧应力,实验证明它对受冲击构件的开裂起到明显的抑制作用,提高了构件的剩余压紧强度,同时由于表面缠绕中纤维含量相对较高,表面材料使构件增加的质量并不多。表面缠绕产生了较好的抗破坏碳纤维复合材料,为村料的开发应用开创了新的途径。 展开更多
关键词 碳纤维复合材料 芳纶纤维 表面缠绕 抗冲击构件
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Use of a submodel method to check the bolt strength of marine equipment 被引量:1
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作者 徐珊珊 刘世明 +1 位作者 郭绍静 张阿漫 《Journal of Marine Science and Application》 2009年第4期316-322,共7页
A submodel method was proposed that works from computational models of marine gear cases to verify that the proposed bolts will give it sufficient structural integrity. Calculations for marine equipment using this sys... A submodel method was proposed that works from computational models of marine gear cases to verify that the proposed bolts will give it sufficient structural integrity. Calculations for marine equipment using this system accorded well with conventional results. As an example, an anti-shock computation was processed for a gear case, and the submodel was then employed to check the strength of individual components. The results showed that the gear case connecting structure can satisfy relative anti-shock requirements, and the dynamic response characteristics seen in the bolt structures had a close relationship with the method used for attaching the bolt. This provides a new means for checking the strength of connecting structures on large-scale equipment and thus has significant reference value. 展开更多
关键词 submodel method gear case connection component shock-resistance
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