Buried Blast Performance and Analysis of Additively Manufactured TI- 6AL- 4V Truss Structures

Abstract

The objective of this study was to use finite element simulations to design new underbody armor truss structures for buried blast mitigation. A selected, small-scale structure was fabricated using additively manufactured Ti-6Al-4V and subjected to an equivalently small-scale buried blast test. Boundary conditions generated by the Moment Impulse Numerical Evaluation (MINE) code suite were applied within LS-DYNA and used to analyze the structural response of the candidate truss structure subjected to buried blast loading. Simulation results were compared to data from the experimentally fabricated and tested structure, giving close agreement between measured and predicted behavior. Overall, the chosen structure was shown to reduce the peak deflection by 55 percent when compared with the performance of a flat, monolithic Ti-6Al-4V plate of equivalent areal density.

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Document Details

Document Type
Technical Report
Publication Date
Mar 12, 2020
Accession Number
AD1093580

Entities

People

  • Aaron Freidenberg
  • Austen Deppe
  • Christopher C. Cummins
  • Jacqueline Finch
  • Jeffrey Lloyd
  • Steven Segletes

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Agreements
  • Armor
  • Boundaries
  • Deflection
  • Explosions
  • Explosive Devices
  • Explosives
  • High Speed Cameras
  • Manufacturing
  • Materials
  • Simulations
  • Test And Evaluation
  • Three Dimensional
  • Two Dimensional
  • United States
  • United States Military Academy

Readers

  • Explosive Engineering.
  • Powder metallurgy of Titanium alloys.
  • Structural Health Monitoring of Composite Structures.