Dynamic response and failure of fully clamped circular plates under impulsive loading

摘要: Abstract An approximate theoretical analysis is presented which examines the dynamic plastic response and three failure modes of fully clamped circular plates subjected to uniformly distributed transverse impulsive loads. The rigid-plastic employs an interaction yield surface combines bending moments, membrane force shear required for flow uses Cowper-Symonds constitutive equation cater material strain rate effects. Good agreement obtained between predictions permanent deflections (failure mode 1) corresponding experimental results Bodner Symonds, Teeling-Smith Nurick recorded on sensitive plates. Correlation a critical impulse rupture with values was poor, possibly because boundary conditions in experiments were not ideally clamped, as assumed theory. Further are pay particular attention details tests when occurs due tensile tearing 2) or 3) at supports.