Influence of boundary conditions on the behavior of laminated glass curved beam with delamination effect: An experimental and numerical investigation

The delamination phenomena of laminated glass structures are issues that are not perfectly understood and remain problematic to predict due to the nonlinearity of the geometric response. A research study is undertaken to investigate the behavior of laminated glass curved beams with initial delamination exposed to different boundary conditions. A mathematical model which contains nonlinear field equations and boundary conditions is developed. An iterative procedure for the solution of field equations is implemented. In addition, experiments are conducted and finite element model is developed to determine the effectiveness of model. The results are in good agreement. These results contribute to a better understanding of the complex response phenomena exhibited by curved laminated glass beams subjected to initial delaminations. Research findings allow a better insight in the behavior of the delamination in laminated glass, including the deflections and stresses. Based on the developed model it is possible to determine the effects of position and size of delaminations on the behavior of laminated glass curved beams under different boundary conditions.

Keywords: curved beam; delamination; laminated glass; nonlinear behavior