SNBV Support Support Download Files

The SNBV (Subspring Network Breakable Voronoi) modeling support package (snbvPkg) supports using the Subspring Network Breakable Voronoi model that includes material creation and laboratory testing (direct-tension and triaxial/biaxial in 3D/2D). The capability is provided in the snbvPkg9.N package that works with PFC version 9 (where N is the package subversion number. The SNBV model is a type of bonded-particle model and support for constructing other types of bonded-particle models is provided by the material modeling support package.

Potyondy, D. (2025). SNBV support (subspring network breakable voronoi model) for PFC [snbvPkg9.4]. Itasca Consulting Group, Inc., Technical Memorandum 5-8106:25TM06 (June 13, 2025).

Download Files

PFC 9.0

SNBV-Modeling Support Package, snbvPkg9.4 (ZIP, 4 MB)

SNBV-Modeling Support Update Revisions

The first column of this table lists the snbvPkg revision number; the second column lists the PFC release against which the snbvPkg has been tested; and the third column describes the snbvPkg revision. Note that each revision of the snbvPkg is expected to operate with a PFC release that is current or newer than that listed. Since newer revisions of the snbvPkg may use features available only in newer revisions of PFC, they may not be compatible with older revisions of PFC.

snbvPkg Release	PFC Release	Date / Description
9.4	9.00.180	06/13/25 Update snbvMemo to note that the name of the grain-strength parameter {with FISH name UCSrat} is incorrect in Table 1 of the Potyondy et al. (2025) journal paper. The correct name is {UCS to tensile strength ratio (sigma_c / sigma_T)} with capital T instead of lowercase T.
9.3	9.00.180	06/10/25 Provide link address to snbvPkg on Itasca website. Update snbvPkgMemo.
9.2	9.00.179	04/01/25 Confirm that package works with PFC 9.00.179, and minor updates to snbvPkg memo.
9.1	9.00.177	02/24/25 Release SNBV package to the world.

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