Test And Simulation Analysis Of Cushioning Performance Of Composite Structural Cushioning Materials Based On ANSYS

In the process of product transportation,cushioning packaging plays an increasingly important role,which is widely concerned by enterprises and consumers.Cushioning materials mainly play the role of supporting and mitigating the impact in the packaging of goods.Materials used as buffer packaging require a certain energy absorption capacity to ensure a great degree of relief from external impact.In addition,considering the durability,practicability and other aspects,it is also required to be waterproof,oil-proof,moisture-resistant and mildew resistant,and maintain good resilience.This paper mainly selects honeycomb board,corrugated board,expandable polyethylene(EPE)and expanded polyethylene(EPS)as the research object,studies the mechanical properties and buffering properties of their composite structure,and uses ANSYS simulation software to simulate and analyze the buffering packaging of composite structure.This paper first analyzes the role of each component of the composite structure on the whole package,and then carries out theoretical research on its buffering performance.Based on the theoretical research of classical buffering packaging,it tries to deduce the theoretical formula of buffering performance of the composite structure,which provides theoretical support for the subsequent buffering packaging design of the composite structure.According to the design results,the paper determines the static compression and dynamic impact test items.The stress-strain curves of honeycomb cardboard,corrugated cardboard,EPE and EPS were obtained,and the parameters required for the simulation of related materials were obtained through calculation.Then determine the EPE-corrugated board,EPS-corrugated board,and honeycomb and corrugated three composite structure,test the composite structure cushioning material static compression and dynamic impact resistance,analysis of characteristics of the curve of the different combination structure and the influence law of dynamic cushioning properties,In order to more comprehensive evaluation of composite structure cushioning effect,put forward four evaluation index than the energy absorption and so on.Then,the static compressive stress-strain curves of honeycomb-corrugated,EPE-corrugated and EPS-corrugated combined structures were analyzed,and the static compressive stress-strain curves of honeycomb-corrugated combined structures and single honeycomb cardboard were compared.The dynamic impact stress-strain curves of honeycomb corrugated,EPE-corrugated and EPS-corrugated structures were analyzed,and the static and dynamic stress-strain curves were compared.The drop impact response of different composite structures is analyzed with drop acceleration as the entry point.The buffering performance of composite structure is evaluated comprehensively according to the four indexes proposed.Finally,the external software UG was used to model the combined structure,which was imported into the ANSYS simulation analysis software for analysis,and the simulation analysis model under the environment of falling was established to simulate the combined structure.The results show that the difference in the thickness and material of the composite structure makes the results have obvious differences in the stress,deformation,acceleration and so on.The buffering performance of the same kind of composite structure also has obvious differences in the low impact and high impact conditions.Falling on the model simulation analysis by the model of equivalent stress nephogram and deformation nephogram and acceleration time curve,and compared with the test results analysis,verify the feasibility of combination structure of packaging design and the reliability of test results.