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所属单位：航空学院

发表刊物：INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES

关键字：T-joint Composite structure Low velocity impact Delamination

摘要：The purpose of this paper is to investigate the influence of fixed L-ribs on the damage behavior of integrated composite T-joints subject to low velocity impact. Experimental test is performed on a vertical drop-weight testing device with two different impact energies. Detailed inspection by visual and ultrasonic C-scan reveals that different impact energies result in different damage types and shapes. Experimental results show that without fixed L-ribs the impact caused an elliptical damage around the impact point at the impact energy of 4.45J/mm and a trumpet delamination at the impact energy of 8.90J/mm. In comparison, the impact only caused serious damage around the impact point without delamination at the impact energy of 8.90J/mm with fixed L-ribs. This experimental study has demonstrated that fixing the L-ribs is an effective way to prevent the delamination of the integrated composite T-joint subject to low velocity impact.

ISSN号：2093-274X

是否译文：否

发表时间：2019-06-01

合写作者：Zhu, Rujian,毛春见

通讯作者：许希武