An Approximate Solution to the Plastic Indentation of Circular Sandwich Panels

The plastic indentation response of circular sandwich panels loaded by the flat end of a cylinder is investigated employing a velocity field model. Using the principles of virtual velocities and minimum work, an expression for the indenter load in relation to the indenter displacement and displaceme...

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Bibliographic Details
Published in:Mechanics of composite materials 2018-05, Vol.54 (2), p.243-250
Main Author: Xie, Z.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites
Computer simulation
Cylinders
Deformation
Energy absorption
Finite element method
Glass
Indentation
Materials Science
Natural Materials
Sandwich panels
Sandwich structures
Solid Mechanics
Velocity distribution
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Summary:The plastic indentation response of circular sandwich panels loaded by the flat end of a cylinder is investigated employing a velocity field model. Using the principles of virtual velocities and minimum work, an expression for the indenter load in relation to the indenter displacement and displacement field of the deformed face sheet is derived. The analytical solutions obtained are in good agreement with those found by simulations using the ABAQUS code. The radial tensile strain of the deformed face sheet and the ratio of energy absorption rate of the core to that of the face sheet are discussed.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-018-9735-7