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Impact study on sandwich panels with and without stitching

机译:用缝合夹层面板的影响研究

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摘要

The low velocity impact responses of sandwich panels with and without stitching were investigated using an instrumented drop weight impact tower. A novel stitching technique was developed to stitch the sandwich panel. Unstitched and stitched sandwich panels with pile orientation of 90 degrees, 45 degrees and 90 degrees/45 degrees were fabricated using vacuum infusion process. Low velocity impact test were carried out with different energy levels of 2, 5, 10, 20, 30, 40 and 50J. The increase in the impact performances generated by the introduction of these reinforcements compared to a traditional sandwich (unstitched) was quantified. The results also show that the ballistic limit of the sandwich panels were improved by employing piles in different orientation.
机译:使用仪器滴重量撞击塔研究了夹层面板与夹持和不缝合的低速冲击响应。 开发了一种新型缝合技术来缝合夹心板。 使用真空输注工艺制造具有90度,45度和90度/ 45度的绒毛取向的未缝合和缝合的夹层面板。 通过2,5,10,20,30,40和50J的不同能量水平进行低速冲击试验。 通过引入与传统的夹心(未缝合)相比,通过引入这些增强件产生的冲击性能的增加。 结果还表明,通过采用不同取向的桩改善了夹层面板的弹道极限。

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