3D Energy Absorption Diagram Construction of Paper Honeycomb Sandwich Panel

Abstract

Paper honeycomb sandwich panel is an environment-sensitive material. Its cushioning property is closely related to its structural factors, the temperature and humidity, random shocks, and vibration events in the logistics environment. In order to visually characterize the cushioning property of paper honeycomb sandwich panel in different logistics conditions, the energy absorption equation of per unit volume of paper honeycomb sandwich panel was constructed by piecewise function. The three-dimensional (3D) energy absorption diagram of paper honeycomb sandwich panel was constructed by connecting the inflexion of energy absorption curve. It takes into account the temperature, humidity, strain rate, and characteristics of the honeycomb structure. On the one hand, this diagram breaks through the limitation of the static compression curve of paper honeycomb sandwich panel, which depends on the test specimen and is applicable only to the standard condition. On the other hand, it breaks through the limitation of the conventional 2D energy absorption diagram which has less information. Elastic modulus was used to normalize the plateau stress and energy absorption per unit volume. This makes the 3D energy absorption diagram universal for different material sandwich panels. It provides a new theoretical basis for packaging optimized design.

Analysis of energy dissipated by damping for paper honeycomb sandwich plate-block system

“…The cushioning property of packaging material mainly depends on the energy absorption during compression, while the anti-vibration property mainly depends on the damping energy dissipation during vibration. Scholars have done a lot of research on the cushioning property of paper honeycomb sandwich plate, including the construction of two-dimensional and three-dimensional energy absorption diagram, 6–8 which provides theoretical guidance for the selection and optimization of packaging design. While the anti-vibration property is relatively weak, which mainly involved the experiment of vibration transmissibility, 9,10 theoretical modeling of vibration transmissibility ratio 11 and finite element simulation analysis.…”

Finite element analysis on the out-of-plane compression for paper honeycomb

“…Wang and Wang 7 modeled the evaluation equation of compressive densification strain for paper honeycomb by introducing the instantaneous and relative density of paper honeycomb. Bai and colleagues 8,9 constructed the energy-absorbing diagram related to strain rate and moisture content for paper honeycomb, which could be used to characterize the absorbing energy property of the paper honeycomb with different structures. The second one is combining finite element method (FEM) and experiment, to study the deformation characteristics and structural change rules of paper honeycomb using computer simulation.…”