Mesh Generation for Microstructures

Technical Report · Mon Jul 01 00:00:00 EDT 2019

DOI:https://doi.org/10.2172/1762957· OSTI ID:1762957

Owen, Steven J. ^[1]; Ernst, Corey D. ^[1]; Brown, Judith Alice ^[1]; Lim, Hojun ^[1]; Long, Kevin Nicholas ^[1]; Foulk, III, James W. ^[1]; Moore, Nathan W. ^[1]; Battaile, Corbett Chandler. ^[1]; Rodgers, Theron ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

A parallel, adaptive overlay grid procedure is proposed for use in generating all-hex meshes for stochastic (SVE) and representative (RVE) volume elements in computational materials modeling. The mesh generation process is outlined including several new advancements such as data filtering to improve mesh quality from voxelated and 3D image sources, improvements to the primal contouring method for constructing material interfaces and pillowing to improve mesh quality at boundaries. We show specific examples in crystal plasticity and syntactic foam modeling that have benefitted from the proposed mesh generation procedure and illustrate results of the procedure with several practical mesh examples.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1762957
• Report Number(s): SAND--2019-8967; 678079
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING