Mechanical behaviours of composite sandwich panel with strengthened pyramidal truss cores
Mechanical behaviours of composite sandwich panel with strengthened pyramidal truss cores
复制标题
强化金字塔桁架芯复合材料夹芯板的力学性能
DOI：
10.1016/j.compstruct.2013.05.015
复制
发表时间：
2013-11-01
影响因子：
6.3
通讯作者：
Chen, Peng
中科院分区：
文献类型：
--
作者：
Gao, Liang;Sun, Yuguo;Chen, Peng
提出了一种改进的交错层合结构设计，并采用热压成型方法制备了格构芯复合材料夹芯板。新的层压形式大大增强了芯的完整性，从而提高了机械性能，特别是对于面内剪切。然而，在剪切试验中，横杆的分层成为主要的破坏。加强型芯充分发挥了十字筋的潜力，延缓了局部破坏的发展。结果表明，该结构具有更上级的综合力学性能和更好的能量吸收能力。(C)2013爱思唯尔有限公司保留所有权利。
An improved design of interlacing laminate layer is presented to fabricate composite sandwich panel with lattice truss cores (CSPLTCs) with a hot-press molding method. The new laminate form greatly enhances the integrity of the cores, leading to increase in mechanical performance, especially for in-plane shear. However, the delamination of the cross-bars becomes the dominated failure in shear tests. The strengthened cores give full play the potential of cross-bars to postpone the progress of the local failure. Results indicate that the present structure provides more superior comprehensive mechanical properties and better energy absorption capacity. (C) 2013 Elsevier Ltd. All rights reserved.