个人信息:
陈普会
招生学科专业:
航空宇航科学与技术 -- 【招收博士、硕士研究生】 -- 航空学院
机械 -- 【招收博士、硕士研究生】 -- 航空学院
学位:工学博士学位

个人信息: Personal information

学历:南京航空航天大学 所在单位:航空学院

Controlling the crack propagation path of the veil interleaved composite by fusion-bonded dots

点击次数: 所属单位:航空学院 发表刊物:Polym. 摘要:This study investigated the effect of the fusion-bonded dots of veil interleaves on the crack propagation path of the interlaminar fracture of continuous carbon fiber reinforced epoxy resin. Two thin fiber layers (i.e., nylon veil (NV) with fusion-bonded dots and Kevlar veil (KV) physically stacked by fibers) were used to toughen composites as interleaves. Result shows that the existence of fusion-bonded dots strongly influenced the crack propagation and changed the interlaminar fracture mechanism. The Mode I fracture path of the nylon veil interleaved composite (NVIC) could propagate in the plane where the dots were located, whereas the path of the Kevlar veil interleaved composite (KVIC) randomly deflected inside the interlayer without the pre-cracking of the dots. The improvement of Mode I toughness was mainly based on fiber bridging and the resulting fiber breakage and pull-out. Fiber breakage was often observed for NVIC, whereas fiber pull-out was the main mechanism for KVIC. For the Mode II fracture path, the fusion-bonded NV dots guided the fracture path largely deflected inside the interlayer, causing the breakage of tough nylon fibers. The fracture path of the physically stacked KVIC occurred at one carbon ply/interlayer interface and only slightly deflected at fiber overlapped regions. Moreover, the fiber pull-out was often observed. © 2019 by the authors. 是否译文: 发表时间:2019-01-01 第一作者:陈普会 通讯作者:,,陈普会,陈普会,陈普会,陈普会,陈普会,陈普会,陈普会,陈普会,陈普会,陈普会 其他作者:Chen, Guangchang,Zhang, Jindong,Liu, Gang,Guo, Miaocai