Hybrid meshing method for finite element analysis
AssigneeOnScale, Inc.
InventorsScott McClennan, Gerald Harvey, Laura Carcione, Heike Broichhausen, Ryan Diestelhorst
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Abstract
Described here is a method for combining unstructured meshes of arbitrarily-ordered elements with regular structured grids to allow for the discretization of complex models for finite element analysis. The method maintains the computational efficiencies of grids for spatial domains within the model where meshes are not desirable or required by utilizing a hybrid discretization approach.
Claims20
A computer-implemented method for creating a hybrid mesh of a three-dimensional (3D) model, comprising:
- applying a structured grid throughout an entirety of the 3D model, the structured grid comprising a plurality of elements;
- identifying a complex material interface of the 3D model;
- removing one or more of the elements of the structured grid that intersect the complex material interface to form a voided region;
- applying an unstructured mesh throughout the voided region, wherein the unstructured mesh approximates the complex material interface, and wherein the unstructured mesh is connected to the structured grid on both sides of the complex material interface.
A system for creating a hybrid mesh of a three-dimensional (3D) model, comprising:
- a processor;
- and
- a memory operably connected to the processor, wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to:
- apply a structured grid throughout an entirety of the 3D model, the structured grid comprising a plurality of elements;
- identify a complex material interface of the 3D model;
- remove one or more of the elements of the structured grid that intersect the complex material interface to form a voided region;
- apply an unstructured mesh throughout the voided region, wherein the unstructured mesh approximates the complex material interface, and wherein the unstructured mesh is connected to the structured grid on both sides of the complex material interface.
A computer-implemented method for creating a hybrid mesh of a two-dimensional (2D) model, comprising:
- applying a structured grid throughout an entirety of the 2D model, the structured grid comprising a plurality of elements;
- identifying a complex material interface of the 2D model;
- removing one or more of the elements of the structured grid that intersect the complex material interface to form a voided region;
- applying an unstructured mesh throughout the voided region, wherein the unstructured mesh approximates the complex material interface, and wherein the unstructured mesh is connected to the structured grid on both sides of the complex material interface.
A system for creating a hybrid mesh of a two-dimensional (2D) model, comprising:
- a processor;
- and
- a memory operably connected to the processor, wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to:
- apply a structured grid throughout an entirety of the 2D model, the structured grid comprising a plurality of elements;
- identify a complex material interface of the 2D model;
- remove one or more of the elements of the structured grid that intersect the complex material interface to form a voided region;
- apply an unstructured mesh throughout the voided region, wherein the unstructured mesh approximates the complex material interface, and wherein the unstructured mesh is connected to the structured grid on both sides of the complex material interface.
Dependencies are inferred from the claim text.