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Fragmentation of a Steel Ring under Explosive Loading

  • Jeremy M. Schreiber
  • Ivi Smid
  • Timothy J. Eden
Conference paper

Abstract

There is a great deal of interest in the behavior of metallic materials under high strain rate loading. Finite Element Analysis (FEA) could be used to model these materials with a reduction in the amount of experimentation needed for characterization. A finite element model of a metallic ring under high strain rate loading was developed using the Johnson-Cook failure model in Abaqus Computer Aided Engineering (CAE). The ring was modeled both axisymmetrically and in three dimensions. Failure was determined by defining a failure initiation value to start the process of element deletion. It was found that element deletion would occur when the failure strain initiation value was less than 1x10−4. Results of both axisymmetric and 3-D were found to be within 3% of each other with respect to maximum von Mises stress, and failure modes were identical. The effects of model changes and loading conditions are investigated.

Keywords

Fragmentation Finite Element Analysis Johnson-Cook Plasticity 

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Copyright information

© TMS (The Minerals, Metals & Materials Society) 2012

Authors and Affiliations

  • Jeremy M. Schreiber
    • 1
    • 2
  • Ivi Smid
    • 2
  • Timothy J. Eden
    • 1
  1. 1.Applied Research LaboratoryThe Pennsylvania State UniversityUSA
  2. 2.Department of Engineering Science and MechanicsThe Pennsylvania State UniversityUSA

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