13th International Conference on Fracture June 16–21, 2013, Beijing, China -7- solutions based on Eq. (8) for the structural response time agree well with the numerical results. The numerical results for the structural response time keep almost a constant for the several cases of α. (a) (b) Figure 4. Analytical solutions and numerical results for (a) the normalized maximum deflection 1w of the bottom face sheets and (b) the nondimensional structural response time fT for the asymmetric sandwich plates Figure 5. Deformed configurations of sinusoidal plate core sandwich plates subjected to 0.25 I = . (a) The case of 0.5 α= , (b) the case of 2 α=
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