Investigation on flying plate diameter to thickness ratio influence on damage pattern and spall signal
| Autor: | M. Schmidt, Andrew Ruggiero, Michael E. Nixon, Nicola Bonora |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Mechanical Engineering High velocity Aerospace Engineering Ocean Engineering Impact test Spall Finite element method symbols.namesake Planar Mechanics of Materials Automotive Engineering symbols Material failure theory Composite material Safety Risk Reliability and Quality Lagrangian Civil and Structural Engineering |
| Popis: | The flying plate impact test is an important experimental technique to identify material behavior under high velocity impact conditions. Standard configuration requires the planar impact of two disks, composed of the sameor different material, with the same diameter and different thicknesses. In this paper the geometric effect induced by a planar impact of disks with different diameters is investigated. An extensive numerical study using both finite element and lagrangian codes has been performed. Material failure has been predicted to occur in the material using an advanced continuum damage model. The study revealed that material damage threshold strain should be sensitive to pressure. A simple geometrical model to predict the diametral extension of the spalled layer is proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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