Algorithms and Strategies for Treatment of Large Deformation Frictional Contact in the Numerical Simulation of Deep Drawing Process

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Applying Nagata patches to smooth discretized surfaces used in 3D frictional contact problems (2014, methodology): “The Nagata patch smoothing method was implemented in DD3IMP in-house finite element code, which has been specifically developed and optimized to simulate sheet metal forming processes [39,40].”
Comparison between Berkovich, Vickers and conical indentation tests: A three-dimensional numerical simulation study (2009, methodology): “…the contact area is evaluated taking into account the contact status of its neighbouring nodes, as suggested by Tanner (1996), and also the normal distance between these nodes and the indenter; this guarantees the accurate estimation of the contact area (Oliveira, 2006; Oliveira et al., 2008).”