Effect of residual-stress field on the ballistic performance of welded steel plate

E. A. Flores-Johnson, O. Muránsky, C. J. Hamelin, P. J. Bendeich, L. Edwards

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

This paper presents finite element simulations examining the effect of residual stresses and pre-existing damage on the ballistic performance of welded austenitic plate. A 18-mm thick welded plate is impacted by a hemi-spherical nosed projectile in the velocity range of 300-800 m/s. Numerical models were developed using ABAQUS/Explicit. The effect of the fracture model on the ballistic performance when equivalent plastic strain is present was also studied. It was found that the preexisting plastic strain have a detrimental effect on the ballistic performance. It was also found that a failure criterion that accounts for pre-existing damage must be used to analyse the effect of residual stresses and plastic strain when impact velocity is close to the ballistic limit.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Shock and Impact Loads on Structures
Pages307-312
Number of pages6
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference on Shock and Impact Loads on Structures 2011 - Fukuoka, Japan
Duration: 16 Nov 201118 Nov 2011
Conference number: 9th

Conference

ConferenceInternational Conference on Shock and Impact Loads on Structures 2011
CountryJapan
CityFukuoka
Period16/11/1118/11/11

Keywords

  • Ballistic resistance
  • Numerical simulations
  • Residual stresses
  • Welded plate

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