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Finite Element Simulation of Ballistic Performance of Dissimilar Metallic Plates Welded Joints


Affiliations
1 Dept. of Mechanical Engg., Sri Sivasubramaniya Nadar College of Engineering, Chennai, India
 

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Studies of ballistic penetration into metal plates and their numerical simulation currently play a vital role in the defence sector. However, no congruent results have been presented so far, especially when it comes to impact on welded plates. Furthermore, these issues are investigated for normal impacts and very few have made an attempt for oblique impacts. Thus the aim of the present work is to conduct numerical simulation using Abaqus/Explicit in order to evaluate the ballistic performance of similar and dissimilar welded plates subjected to various bullet velocities and impact angles. The effect of post weld residual stresses and associated plastic damage on the ballistic performance of similar (Al6061) and dissimilar (Al 6061-SS 304) welded plates is also determined. The energy absorbed by the welded plates for various configurations was determined and the results are critically evaluated.

Keywords

Ballistic Performance, Finite Element Simulation, Dissimilar Welded Joints, Residual Stress, Oblique Impact.
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  • Finite Element Simulation of Ballistic Performance of Dissimilar Metallic Plates Welded Joints

Abstract Views: 243  |  PDF Views: 135

Authors

S. Sureshkumar
Dept. of Mechanical Engg., Sri Sivasubramaniya Nadar College of Engineering, Chennai, India
K. Sushinder
Dept. of Mechanical Engg., Sri Sivasubramaniya Nadar College of Engineering, Chennai, India
S. Sudersan
Dept. of Mechanical Engg., Sri Sivasubramaniya Nadar College of Engineering, Chennai, India

Abstract


Studies of ballistic penetration into metal plates and their numerical simulation currently play a vital role in the defence sector. However, no congruent results have been presented so far, especially when it comes to impact on welded plates. Furthermore, these issues are investigated for normal impacts and very few have made an attempt for oblique impacts. Thus the aim of the present work is to conduct numerical simulation using Abaqus/Explicit in order to evaluate the ballistic performance of similar and dissimilar welded plates subjected to various bullet velocities and impact angles. The effect of post weld residual stresses and associated plastic damage on the ballistic performance of similar (Al6061) and dissimilar (Al 6061-SS 304) welded plates is also determined. The energy absorbed by the welded plates for various configurations was determined and the results are critically evaluated.

Keywords


Ballistic Performance, Finite Element Simulation, Dissimilar Welded Joints, Residual Stress, Oblique Impact.



DOI: https://doi.org/10.4273/ijvss.6.4.01