Simulation of the Taylor impact test and analysis of damage evolution using a nucleation and growth based approach

L. Campagne-Lambert, L. Daridon, O. Oussouaddi, S. Ahzi, X. Sun

Research output: Contribution to journalArticle

Abstract

Computational modeling of the Taylor impact test, using OFHC copper rods are carried out for two impact velocities (260m/s and 365m/s). The aim of this work is to demonstrate the efficiency of the recently proposed material model for dynamic plasticity and failure for metals. This model combines the use of a damage approach based on void nucleation and growth, with the Mechanical Threshold Stress (MTS) model for the evolution of the flow stress in isotropic plasticity. The proposed approach is implemented in the finite element code ABAQUS/Explicit via a user material subroutine and the symmetric Taylor impact test, using copper rods, is simulated. The predicted results are compared to the experimental results reported in the open literature and good agreement is found for both shape change and damage distribution.

Original languageEnglish
Pages (from-to)19-35
Number of pages17
JournalModelling, Measurement and Control B
Volume77
Issue number3-4
Publication statusPublished - 1 Dec 2008

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Keywords

  • Finite element
  • High strain rates
  • Taylor Impact
  • Viscoplasticity
  • Void growth
  • Void nucleation

ASJC Scopus subject areas

  • Modelling and Simulation
  • Condensed Matter Physics
  • Mechanical Engineering
  • Computer Science Applications

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