Analysis of bending bearing capacity of reinforced curved plate structure
The square,honeycomb and concave reinforced configurations were introduced into the thermoplastic polylactic acid(PLA)curved plate structure,and under the three-point bending condition,the effects of the reinforced configuration,bending degree and inner and outer reinforced methods on their bending bearing capacity were studied through experimental tests and simulation calculations,and the experimental and simulation results were compared and analyzed.The results show that there are certain differences in the bending bearing capacity of PLA reinforced curved plate structure with different reinforced configurations,and the negative Poisson's ratio concave configuration is helpful to the bearing and crack resistance of the structure,but it mainly affects the linear elastic stage,and the honey-comb configuration has better crack resistance capacity in the plastic yield stage.The bending bearing capacity of the structure is inversely proportional to its bending degree.Changing the intracellular angles of the honeycomb configuration and concave configuration can improve the bearing capacity of the structure.The results of the outer reinforced method are better than that of the inner reinforced method,and the maximum stresses of both are located in the respective panel layers.
reinforced curved plate structurenegative Poisson's ratiothree-point bendingfinite element simulationbearing capacity
万方数据
维普
