*RVE_ANALYSIS_FEM (LS-DYNA version: R13, double precision, SMP/MPP)
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RVE analysis using FEM
Card 1
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MESHFILE: name of an input file that contains the node and element information. Note that the file extension (e.g., .k) should be included.
Card 2
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INPT: =0: RVE boundary conditions are defined automatically based on the parameter “BC”.
=1:​ RVE boundary conditions are defined manually by the user.
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OUPT: =1: RVE homogenization results are output to a database file "rveout".
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LCID: ID of a loading curve specified by the keyword "*DEFINE_CURVE".
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IDOF: the dimension of the RVE problem (2 or 3).
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BC: type of the RVE boundary condition
​ =0: periodic displacement boundary condition (PDBC).
=1: linear displacement boundary condition (LDBC).
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IMATCH: Type of the RVE mesh for imposing PDBC
=0: the mesh is non-matching for PDBC​.
=1: the mesh is PDBC-matching.
Card 3
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Hij: The ij-th component of the prescribed macroscopic displacement gradient.
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If the entry for any component is left blank, a stress-free condition will be applied in that corresponding direction.
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For 2D problems (IDOF=2), inputs for H33, H23, H13 are ignored.
*DATABASE_RVE (LS-DYNA version: R13, double precision, SMP/MPP)
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Output of the RVE homogenization results to a ASCII database file named “rveout”.
Card 1
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DT: time interval for the output of results to the rveout file.
