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Analytical Evaluation of Al 6082-T6 Weld Zone Using Randomised Mixing Material Model

In the present study, the strength characteristics of weld zone in the extruded Al6082-T6 has been investigated both by experiment and finite element analysis. The measured heat affected zone was modeled by the combination of deposited metal and a base metal with randomisation. Results from the randomised finite element analysis were compared with tensile test data depending upon the fracture behavior and strength characteristics of weld zone. Three cases of the randomised macro mixing of two materials in HAZ with three types of mixing ratios. Among them, the case 3, which contains the smallest amount of the portion of the base material, showed good agreement with experiment within the allowable error of 12%.