Research On Static Properties Of Rubber Honeycomb Matrix Structure For Nanofluidic Elastic Material

The rubber honeycomb skeleton is an important component of nanofluidic elastic material,which is used to encapsulate and support the nanofluidic system.However,the research on honeycomb structure is mostly carried out on paper or aluminum honeycomb structure,and the mechanical properties of rubber honeycomb skeleton are not clear yet.In this paper,the packer rubber is used as the application background of nanofluidic elastic material,and the size and setting compression distance of the packer Y241 rubber cylinder are taken as the calculation conditions.The static properties of zero-order,first-order hollow rubber honeycomb skeleton and nanofluidic elastic material are studied by using ANSYS Workbench statics module.The zero-order and first-order hollow rubber honeycomb skeleton models are established,and the deformation modes of rubber honeycomb skeleton and the influence rules of cell side length,wall thickness,height and layer-to-layer stacking on the static properties of rubber honeycomb skeleton were studied.The results show that with the increase of the compression ratio,the deformation modes of the zero-order and first-order rubber honeycomb skeleton go through three stages: elastic zone,platform zone and compaction zone.The average contact pressure on the upper surface of the first-order rubber honeycomb skeleton platform zone is2.4 times that of the zero-order rubber honeycomb skeleton.According to the packer rubber compression distance of type Y241 packer,the honeycomb skeleton is compressed by 20%.It is found that when the compression ratio is 0.2,the pressure-bearing capacity of the zero-order and first-order rubber honeycomb skeleton increased linearly with the increase of cell wall thickness-to-side length ratio,and decreased exponentially with the increase of cell height.By fitting the numerical simulation results,the fitting correlation formulas between the average contact pressure on the upper surface of the rubber honeycomb skeleton and the cellular parameters are obtained.Under the compression ratio of 0.2,the average contact pressure on the upper surface of the first-order single-layer rubber honeycomb skeleton with the cell side length ratio in the range of 0.1 to 0.5 shows a trend of first increasing and then decreasing with the increase of the cell side length ratio.When the cell side length ratio is 0.3,the average contact pressure on the upper surface reaches the maximum.When the two layers of rubber honeycomb skeleton are stacked,when the spacer layer is single-walled,the average contact pressure on the upper surface of the double-layer rubber honeycomb skeleton is the largest when the double-layer rubber honeycomb skeleton is overlap stacked;with the increase of the staggered distance,the average contact pressure on the upper surface of the double-layer rubber honeycomb skeleton decreases,and reaches the minimum when the staggered distance is 1/2 the cell diameter.The static properties of the nanofluidic elastic material are investigated by filling the nanofluidic system into the zero-order and first-order hollow rubber honeycomb skeleton.The results show that the pressure-bearing capacity of the nanofluidic elastic material can be increased hundreds of times higher than that of the hollow rubber honeycomb skeleton;The pressure-bearing capacity of nanofluidic elastic material increases with the increase of the pressure-bearing capacity of hollow honeycomb skeleton and the critical osmotic pressure of the filled nanofluidic system.The research results in this paper provide a reference for the honeycomb structure design of nanofluidic elastic material.