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首页> 外文会议>Japan International SAMPE Symposium >Stitch Parameter Effect on Impact Damage Resistance of a New RTM Composites
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Stitch Parameter Effect on Impact Damage Resistance of a New RTM Composites

机译：缝合参数效应新型RTM复合材料的冲击损伤电阻

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摘要

This paper presents the effect of stitch parameter (stitch thread size and stitch density) on impact damage resistance of through the thickness stitched composites. The preforms consist of carbon fiber plane weave fabric stitched using two types stitch method with aramid fiber thread (Kevler) or consist of 3D textile stitched with carbon fiber thread. Test specimens were fabricated from new epoxy resin using RTM process. In order to evaluate impact damage resistance property, compression after impact (CAI) test was performed. As the results of tests, CAI strength was much affected by stitching and stitch parameter. CF stitched specimen shows over 70% higher strain than unstitched specimen at the CAI test. The increase of stitch density contributed the degradation of damage area and the improvement of residual strength. While the increase of stitch thread size was not so effective in residual strength in this case.
机译：本文介绍了缝合参数（针脚尺寸和针迹密度）对通过厚度缝合复合材料的冲击损伤电阻的影响。预制件由碳纤维平面编织织物组成，使用两种缝合方法与芳纶纤维螺纹（Kevler）组成，或由缝合碳纤维螺纹缝合的3D纺织品组成。使用RTM方法从新的环氧树脂制造试样。为了评估抗冲击性能，撞击后的压缩（CAI）测试。作为测试结果，CAI强度受到缝合和针脚的影响。 CF缝合标本显示出比CAI测试的未分别样品高出70％的菌株。缝合密度的增加有助于损伤区域的降低和剩余强度的提高。在这种情况下，缝合螺纹尺寸的增加在剩余强度下没有那么有效。

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