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A study on the low-velocity impact response of laminates for composite railway bodyshells

机译：复合材料铁路车体薄板低速冲击响应研究

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This paper presents a study on the low-velocity impact response of woven fabric laminates for the composite bodyshell of a tilting railway vehicle. In this study, low-velocity impact tests for the three laminates with size of 100 mm x 100 mm were conducted at three impact energy levels of 2.4 J, 2.7 J and 4.2 J. Based on these tests, the impact force, the absorbed energy and the damaged area were investigated according to different energy levels and stacking sequences. The damage area was evaluated by visual inspection and C-scan measurement. The test results showed that the absorbed energy of [fill]_8 laminate was highest whereas [fill_2/warp_2]_s laminate was lowest. The [fill]_8 laminate had the largest delamination area because of the highest impact energy absorption.
机译：本文提出了一种用于倾斜铁路车辆复合车体的机织织物层压板的低速冲击响应的研究。在这项研究中，对三种尺寸为100 mm x 100 mm的层压板的低速冲击试验在2.4 J，2.7 J和4.2 J的三种冲击能级下进行。基于这些试验，冲击力，吸收能根据不同的能级和堆垛顺序对损伤区域进行了研究。通过目测和C-扫描测量评估损伤区域。试验结果表明，[fill] _8层压板的吸收能最高，而[fill_2 / warp_2] _s层压板的吸收能最低。由于最大的冲击能量吸收，[fill] _8层压板具有最大的分层面积。

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