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dc.contributor.authorFlores-Johnson, EA-
dc.contributor.authorMuránsky, O-
dc.contributor.authorHamelin, CJ-
dc.contributor.authorBendeich, PJ-
dc.contributor.authorEdwards, L-
dc.identifier.citationFlores-Johnson, E. A., Muransky, O., Hamelin, C. J., Bendeich, P. J., & Edwards, L. (2012). Numerical analysis of the effect of weld-induced residual stress and plastic damage on the ballistic performance of welded steel plate. Computational Materials Science, 58, 131-139. doi:10.1016/j.commatsci.2012.02.009en_AU
dc.description.abstractThe current paper presents numerical analyses that elucidate the effects of post-weld residual stress and associated plastic damage on the ballistic performance of 316L austenitic steel plate. Impact simulations of an 18 mm thick plate with a centreline three-pass slot weld by hemispherical-nosed and flat-nosed projectiles are performed, with initial velocities in the range of 300-800 m/s. The numerical framework consists of three interdependent stages: (i) a weld model was developed in Abaqus/Standard and validated using two independent experimental data sets; (ii) a Johnson-Cook material model is calibrated and validated along with the shear failure fracture criterion available in Abaqus/Explicit for impact models; and (iii) the weld modelling results were transferred to an impact model built in Abaqus/Explicit, which employs the validated material and fracture models to predict the ballistic performance of welded plate. It is shown that the associated plastic strain damage accumulated during the welding process - and its distribution - has an adverse effect on the ballistic performance. It has also been determined that a fracture criterion that accounts for pre-existing damage in the weldment must be used for accurate impact analyses of welded structures. Crown Copyright (C) 2012 Published by Elsevier B.V.en_AU
dc.subjectNumerical analysisen_AU
dc.subjectResidual stressesen_AU
dc.subjectWelded jointsen_AU
dc.subjectShear propertiesen_AU
dc.titleNumerical analysis of the effect of weld-induced residual stress and plastic damage on the ballistic performance of welded steel plateen_AU
dc.typeJournal Articleen_AU
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