The aim of this test case is to validate the following functions:
Plastic material behaviour
Reduced integration element type
The simulation results of SimScale were compared to the results presented in [SSNP123]. The mesh used in (A) and (C) was created with the automatic-tetrahedralization-tool on the SimScale platform. The mesh used in (B) und (D) was created locally.
The corresponding nodes marked with a dash (‘) are translated 0.0001 m along the negative z-direction.
Analysis type and Domain
Tool Type : Code_Aster
Analysis Type : Static Anaylsis
Mesh and Element types :
Case
Mesh type
Number of nodes
Element type
(A)
quadratic tetrahedral
35503
3D isoparametric
(B)
quadratic hexahedral
5508
3D isoparametric
(C)
quadratic tetrahedral
35503
3D under integrated
(D)
quadratic hexahedral
5508
3D under integrated
Mesh used for the SimScale case (A)
Mesh used for the SimScale case (B)
Simulation Setup
Material:
isotropic: E = 200 GPa,ν = 0.3, \(\sigma_{y}\)= 200 MPa, ET = 1000 MPa
Dependency of the Young’s modulus
Constraints:
Face AA’EE’: zero x-displacement
Face AA’BB’: zero y-displacement
z-displacement is fixed for all nodes
Face DD’EE’: displacement of 0.0001 m in y-direction
Results
Comparison of the cauchy stress along path FC
Comparison of the cauchy stress \(\sigma_{yy}\) along path FC. The values of the reference [SSNP123] in all figures were extracted with WebPlotDigitizer.
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