Numerical Studies of Explosive Welding of Three-Layer Cylinder Composites-Part 2

Seiyed Ali Asghar Akbari Mousavi

doi:10.4028/www.scientific.net/MSF.580-582.327

Paper Titles

Numerical Modeling of Welding Arc with Complex System between Arc Plasma and Molten Electrode
p.311

Effect of Joint Configuration Design on the Butt Welding Characteristics of Double Wall PE Pipes
p.315

Predictions of Current Attachment at Thermionic Cathode for TIG Arcs
p.319

Experimental Investigations of Explosive Welding of Three-Layer Cylinder Composites-Part 1
p.323

Numerical Studies of Explosive Welding of Three-Layer Cylinder Composites-Part 2
p.327

Experimental and Numerical Investigations of Residual Stress Distributions in the TIG Welding Process
p.331

Experimental and Numerical Studies of the Effects of Process Parameters in the Continuous Friction Welding Process
p.335

Cooperative Control of Robotic Welding System in One Side Backingless V Groove Welding
p.339

An Efficient Welding Method to Control the HAZ Softening of Ultra Fine Grained Steel Weldment
p.343

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Numerical Studies of Explosive Welding of Three-Layer Cylinder Composites-Part 2

Abstract:

Finite element simulations of the experimental tests to explosively weld three layers of Al5056, Al6061 and SS304L tube composites, using various stand-off distances and explosive ratios, are presented in this study. The Williamsburg equations of state and Johnson-Cook constitutive equations were used to describe the behaviors of the explosive and the tubes, respectively. In this paper, the external parameters (dynamic angle and collision velocity) are related to the physical parameters (shear stress and plastic strain). The numerical results showed that very high localized plastic deformation was produced at the bond interface. Moreover, it was found that the shear stress magnitude and signs can provide the necessary criteria for bonding. In addition, the sufficient criterion for bonding was found to be the magnitude of the plastic strain produced at the collision point. The new welding window based on the internal parameters is proposed.