Study on Mechanical Properties of Flat-panel Inflatable Structure
The flat-panel inflatable structure as a new type of inflatable structure,due to its high strength,lightweight,and excellent designability,can be applied in civil engineering fields such as roof panels,enclosure structures,and bridges,showing extensive application prospects.However,research on the flat structure of space fabric is currently limited,lacking a simple and efficient calculation method.Therefore,a mechanical model suitable for the bending of space fabric flat structures was established.Nonlinear finite element analysis was conducted using two-dimensional three-node Timoshenko beam elements containing internal pressure.MATLAB was used to write corresponding finite element programs to predict the load-displacement curve and wrinkling load.Finally,a four-point bending test was conducted on the space fabric flat structure to verify the correctness of the theory.The results show that the mechanical model can predict the entire mechanical behavior of the space fabric flat structure.
inflatable structurefinite element analysisflat-panel inflatable structurewrinklemechanical model
万方数据
维普
