3.1.7.16. Parallel3D Material Wrapper

This command is used to construct a Parallel3D material object. It is a wrapper that imposes an iso-strain condition to an arbitrary number of previously-defined 3D nDMaterial objects. Therefore, in each sub-material the strains are equal, the parallel stress and tangent are equal to the (weighted) sum of those of the sub-materials.

nDMaterial Parallel3D $matTag    $tag1 $tag2 ... $tagN   <-weights $w1 $w2 ... $wN>

Argument

Type

Description

$matTag

integer

unique tag identifying this series material wrapper

$tag1 $tag2 … $tagN

N integer

unique tags identifying previously defined nD materials

$w1 $w2 … $wN

N float

weight factors, optional. If not defined, they will be assumed all equal to 1

3.1.7.16.1. Usage Notes

Limitations

  • The only material formulation for the Parallel3D material object is “ThreeDimensional”.

  • The only material formulation allowed for the sub-material objects is “ThreeDimensional”.

Responses

  • All responses available for the nDMaterial object: stress (or stresses), strain (or strains), tangent (or Tangent), TempAndElong.

  • material $matId … : use the material keyword followed by the 1-based index of the sub-material (and followed by the desired response) to forward the request to the matId sub-material.

  • homogenized … : use the homogenized keyword followed by the desired response to forward the request to all sub-materials, and to compute its weighted average.

Example 1 - Simple Linear Validation

Parallel3DExample1.py

Code Developed by: Massimo Petracca at ASDEA Software, Italy.