Products: Abaqus/Standard Abaqus/Explicit Abaqus/CAE
Benefits: You can define a co-simulation interaction between regions of Abaqus/Standard and Abaqus/Explicit models that have dissimilar meshes. In addition, you can reduce the solution cost for models with a large number of co-simulation interface nodes by permitting Abaqus/Standard to factorize the interface matrix once per Abaqus/Standard increment.
Description: In Abaqus 6.9 you were required to provide Abaqus/Standard and Abaqus/Explicit meshes that matched on their shared co-simulation region interfaces. This restriction no longer applies.
By default, for the subcycling time incrementation scheme, an interface solve is performed in Abaqus/Standard for every Abaqus/Explicit increment. This solve can be significantly costly for two reasons. First, the interface matrix used for the interface solve is dense and its size scales with the number of interface nodes. Second, the interface matrix changes every Abaqus/Explicit increment, requiring factorization in Abaqus/Standard for every Abaqus/Explicit increment. You can reduce the impact of this cost by approximating the interface matrix and factorizing it once for the duration of an Abaqus/Standard increment, rather than for each Abaqus/Explicit increment. For models with greater than 100 interface nodes and a subcycling ratio greater than 50, this new feature typically reduces the analysis time by a factor between 1.2 and 3.0.
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