Adaptive remeshing

The simulation results for the von Mises stress prohle indicate that it is lowest in the nugget region and begins to increase and finally stabilize away from the center point of the workpiece (Ref 23). It is believed that further refinements to include the tool (pin) and the anvil as elements that absorb and release heat during the operahon would enhance the accuracy of the model. This model, along with the adaptive remesh ophon, leads the way to simulate the complex and dynamic phenomenon of spot FSW. 

Zheng XM, Lowengrub J, Anderson A, Cristini V (2005) Adaptive unstructured volume remeshing, II application to two- and three-dimensional level-set simulations of multiphase flow. J Comput Phys 208 626-650... 

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