Compressive failure modes and parameter optimization of the trabecular structure of biomimetic fully integrated honeycomb plates.
To develop lightweight biomimetic composite structures, the compressive failure and mechanical properties of fully integrated honeycomb plates were investigated experimentally and through the finite element method. The results indicated that: fracturing of the fully integrated honeycomb plates primarily occurred in the core layer, including the sealing edge structure. The morphological failures can be classified into two types, namely dislocations and compactions, and were caused primarily by the stress concentrations at the interfaces between the core layer and the upper and lower laminations and secondarily by the disordered short-fiber distribution in the material; although the fully integrated honeycomb plates manufactured in this experiment were imperfect, their mass-specific compressive strength was superior to that of similar biomimetic samples. Therefore, the proposed bio-inspired structure possesses good overall mechanical properties, and a range of parameters, such as the diameter of the transition arc, was defined for enhancing the design of fully integrated honeycomb plates and improving their compressive mechanical properties.
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China.
Jinxiang
J
Chen
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China; School of Civil and Architectural Engineering, Anyang Institute of Technology, Anyang 455000, China. Electronic address: chenjpaper@yahoo.co.jp.
Wanyong
W
Tuo
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China.
Xiaoming
X
Zhang
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China.
Chenglin
C
He
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China.
Juan
J
Xie
School of Civil Engineering & International Institute for Urban Systems Engineering, Southeast University, Nanjing, 210096, China.
Chang
C
Liu
D040761:Biomimetic Materials / Q000737:chemistry*; D001860:Bone Plates; D019245:Compressive Strength; D008855:Microscopy, Electron, Scanning; D008954:Models, Biological
Basalt fiber; Compressive properties; Forewing; Integrated honeycomb; Lightweight composite