Study on the shock response of typical plate and shell-support

The shock test and numerical analysis of the support model including model design, layout of the sensor is presented in this paper. The governing equations of a thin cylindrical shell within the framework of the Flugge thin shell theory and the related Hamilton variation method have been derived. Set up a linear finite element model consistent with experiment model to calculate the dynamics response of shock under transient load with linear transient dynamic time history computation method and made comparison between corresponding experiment data and numeric results. Then, the sensitivity of integral time step and how to define the ratio of damping are discussed. The results shows that: making time step to 0.5ms, it will get a good precision of analysis and workload down; making damping ratio to 0.0%, the stress result is reasonable with less conservation; but in the calculation of shock load distribution, the best damping ratio is 1.0% or 2.0% to get a good consistent current to acceleration time-history between calculation and test.