DETERMINATION OF STRUT QUALITY FACTORS IN ADDITIVELY MANUFACTURED LATTICES USING IN-SITU COMPRESSION TESTING µ-CT

Conference · Tue Feb 27 04:00:00 UTC 2024

OSTI ID:2406390

Dinova, Vincent A. ^[1]; Flynn, Holly B. ^[1]; Korinko, Paul S. ^[2]; Immel, David M. ^[1]

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1. Savannah River National Laboratory (SRNL), Aiken, SC (United States)
2. Savannah River Nuclear Solutions (SRNS), Aiken, SC (United States)

In response to the need for an automated, commercial method to qualify additively manufactured (AM) lattice components, an experiment was conducted to evaluate the effects of defective lattice struts on the structural compression strength. Lattice samples with known defective or missing struts were compressed using a Deben CT5000RT and imaged using xray µ-CT. The compressive force and x-ray computed tomography results were compared to defect free standards to evaluate the impact of each defect type on the overall structure’s compressive strength. This analysis will allow for simplifications to Finite Element Analysis (FEA) on AM parts without sacrificing model fidelity. Understanding the contribution of each defect type and severity will also better inform non-destructive evaluation (NDE) personnel of the inspection parameters necessary to detect the smallest feature of importance.

• Research Organization: Savannah River National Laboratory (SRNL), Aiken, SC (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• DOE Contract Number: 89303321CEM000080
• OSTI ID: 2406390
• Report Number(s): SRNL-STI-2024-00077
• Country of Publication: United States
• Language: English