期刊
FIBERS AND POLYMERS
卷 22, 期 6, 页码 1718-1730出版社
KOREAN FIBER SOC
DOI: 10.1007/s12221-021-0748-9
关键词
Honeycomb sandwich structure; Four-point bending; Finite element method; Structural parameters; Failure
资金
- National Natural Science Foundation [51875463]
- Natural Science Basic Research Plan in Shaanxi Province of China [2018JM1001]
This study aims to characterize and assess the failure modes and effects of structural parameters of honeycomb sandwich structure through experiments and numerical simulations. The research discusses the relationships between the overall stiffness and strength of honeycomb structure with parameters such as cell size and stacking sequence, identifying laminate fracture, delamination, core buckling, and wrinkling as the main failure modes. These findings have significant implications for designing high-performance sandwich structures.
The aim of this study is to characterize and assess failure modes and the effect of structural parameters of honeycomb sandwich structure. The semi-finite element model of honeycomb sandwich structure under four-point bending load is established by a parametric method. Laminate delamination is exhibited by a contact algorithm with the mixed-mode damage model. Experiments are conducted to obtain load-displacement curves of honeycomb sandwich structure and thereby verify the applicability of finite element model. The failure modes of honeycomb sandwich structure have also been identified by comparing the experimental results with the numerical results. The effects of structural parameters on the mechanical properties of honeycomb sandwich structure are discussed. Results demonstrate that the overall stiffness of honeycomb structure is closely related to the honeycomb cell size such as length, height and foil thickness. In addition, the strength of honeycomb sandwich structure is sensitive to stacking sequence of composite laminate with different fiber orientation. The main failure modes of honeycomb sandwich structure are laminate fracture, delamination, core buckling and wrinkling. The achievements in this study have guiding significance to design high-performance sandwich structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据