Dynamic Response of a Clamped Circular Sandwich Plate Subject to Shock Loading
By X. Qiu, V. Deshpande, Norman A. Fleck. Journal of applied mechanics, 2004
193 citations recorded by the source corpus.
An analytical model is developed for the deformation response of clamped circular sandwich plates subjected to shock loading in air and in water. The deformation history is divided into three sequential stages and analytical expressions are derived for the deflection, degree of core compression, and for the overall structural response time. An explicit finite element method is employed to assess the accuracy of the analytical formulas for the simplified case where the effects of fluid-structure interaction are neglected. The sandwich panel response has only a low sensitivity to the magnitude of the core compressive strength and to the degree of strain hardening in the face-sheets. The finite element results confirm the accuracy of the analytical predictions for the rigid ideally plastic sandwich plates. The analytical formulas are employed to determine optimal geometries of the sandwich plates that maximize the shock resistance of the plates for a given mass. The optimization reveals that sandwich plates have a superior shock resistance relative to monolithic plates of the same mass.
Subfields: Mechanical Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/c0fb1b9e28a96a8327049a6006bc18a1f0ba9390
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Mechanical Engineering
In Mechanics of Materials
Citations in the corpus
- Structural performance of near-optimal sandwich panels with corrugated cores (2006, background): “All-metallic sandwich panels combine weight-efficiency (Ashby et al., 2000; Evans et al., 2001; Wadley et al., 2003) with blast containment (Fleckand Deshpande, 2004; Qiu et al., 2003, 2004; Radford et al.,”
- Multifunctional periodic cellular metals (2006, methodology): “A schematic illustration of the concept is shown in figure 20. Detailed finite element calculations using fully meshed geometries with square honeycomb, prismatic corrugations and pyramidal truss topologies made from materials defined by their yield strength, strain hardening rate, and strain rate s”
- Plastic Deformation, Failure and Energy Absorption of Sandwich Structures with Metallic Cellular Cores (2010, background): “Three-Phase Analytical Models A series of analytical models have been developed by Fleck and co-workers, to predict the dynamic response of sandwich beams and circular sandwich panels under a uniform shock loading [142, 143] or a non-uniform one over a central patch [144].”
- Deformation and failure of blast-loaded metallic sandwich panels: experimental investigations (2008, unknown): “A series of analytical models have been developed by Fleck and coworkers to predict the dynamic response of sandwich beams and circular sandwich panels under either a uniform shock loading [11,12] or a localized one over a central patch [13,14].”