Modelling of localized ductile fracture with volumetric locking‐free tetrahedral elements
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DOI: 10.1002/nme.6323
Abstract: Finite element analysis of ductile fracture with tetrahedral elements faces two numerical issues: volumetric locking and mesh sensitivity. In this paper, two widely adopted remedies for volumetric locking (F‐bar and mixed field) are evaluated, and… read more here.
Keywords: volumetric locking; mixed field; locking free; fracture ... See more keywords
Four‐node tetrahedral elements for gradient‐elasticity analysis
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DOI: 10.1002/nme.6375
Abstract: Computational analyses of gradient‐elasticity often require the trial solution to be C1 yet constructing simple C1 finite elements is not trivial. This article develops two 48‐dof 4‐node tetrahedral elements for 3D gradient‐elasticity analyses by generalizing… read more here.
Keywords: elasticity; node tetrahedral; gradient elasticity; displacement ... See more keywords
Development of ANCF tetrahedral finite elements for the nonlinear dynamics of flexible structures
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DOI: 10.1007/s11071-017-3635-6
Abstract: In this paper, methods for developing isoparametric tetrahedral finite elements (FE) based on the absolute nodal coordinate formulation (ANCF) are presented. The proposed ANCF tetrahedral elements have twelve coordinates per node that include three position… read more here.
Keywords: parametrization; nonlinear dynamics; finite elements; ancf tetrahedral ... See more keywords